Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
WOODEN WINDOW AND DOOR OPERATING AND
MAINTENANCE MANUAL
JSC “Vudesta” doors/windows are intended for beauty, efficiency, and Your convenience. This
publication contains information about Your new windows and doors. After reading it, you will learn how to
take care of them, what to do to keep them good-looking and durable.
Should You face a problem not described in this publication, do not hesitate to contact JSC “Vudesta”
by phone: +370 614 70496 or by e-mail [email protected]. JSC “Vudesta” website address: www.vudesta.lt
Product warranty is valid only if the operating and maintenance instructions are followed.
Thank you for purchasing JSC “Vudesta” products.
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
1. DESCRIPTION OF PRODUCTS
JSC “Vudesta” produces European (Euro 67, Euro 67ALU, Euro 77, Euro 77ALU, Euro 87, Euro
87ALU”) and Scandinavian type (opened outwards) windows (116/56, 116/78) and doors of various size and
configuration. All production materials used are certified and comply with applicable requirements. The
number beside the title of the Euro window indicates a jamb width and varying as 67 mm, 77 mm, and 87
mm thick. European type windows are made of pine, oak, larch, and meranti. Wood blanks are glued beams,
thus, there is a lower probability of wood expansion or shrinkage, distortion, cracks, or crevices. Pine blanks
may be spiny or smooth.
Scandinavian type wooden windows are usually made of pine and sipo. Pine blanks are also glued
beams, as well as the above-mentioned European-type windows. Window and door frames are varnished,
painted, or covered with aluminium caps from the outside (aluminium capped windows and doors are
maximally protected against weather – rain, temperature, wind). For window and door finishing, we use
primer, paint, and varnish of Finnish company “Teknos”.
European type windows and doors are supplied with high-quality German “ROTO FRANK AG“
fittings, and Scandinavian type – with “PN Beslag“ fittings. “ROTO FRANK AG” fittings have some unique
features, compared with fittings of other manufacturers, therefore, please carefully read the section 3.2, which
describes how to open and close the European type windows. You may also contact a manager of JSC
“Vudesta” to see how to open and close them correctly. We have a huge variety of grass units, so, at Your
request, we can design any to meet all Your requirements. The most popular glass units consist of two or
three clear glass panes. In a three-grass unit, two glass panes are covered with a selective coating. Selective
coating is a metal dust coat which reflects a heat moving through a glass unit (like a mirror reflecting the
light.). In this way, the selective coating saves warmth in winter and ensures less solar heat and more
coolness in summer. Unit spacing between the panes is usually filled with argon gas. The inert gas insulates
heat better than the still air. Argon may be replaced with xenon or krypton gas, with heat insulation properties
even better. However, such units are more expensive. Gas is preserved in the air-tight unit 60 years or more.
The glass units vary in thickness, a quantity of glass panes, and shade. Recently, glass units with plastic
Swisspacer™ or Thermix™ frames instead of aluminium ones are in fashion. They prevent the penetration of
heat outside through the unit edges and reduce the likelihood of glass fogging.
Glazing 2-pane unit with usual
glass
2-pane unit with 1
selective glass (argon gas
filling)
3-pane glass with 2
selective glass panes
(argon gas filling) Heat transfer coefficient c,
(W/m2K) 2.80 1.10 0.65
Average glass surface
temperature* 9.10°C 15.3°C 17.5°C
*-room air temperature + 21 °C, outside temperature -10 °C
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
2. INSTALLATION OF WINDOWS
All the company's products must be installed in accordance with the technical construction regulation
ST 2491109.01.2000 “Installation of windows, doors and their constructions.” A brief overview of the
installation details is provided below.
Attention! If windows/doors are installed in breach of the manufacturer's requirements, the
warranty shall not be valid in case of split glass units, frames, deflections, cracked fitting parts
(provided that it occurs due to the window load or deformation).
2.1. WINDOW/DOOR INSTALLATION PROCEDURE:
• Check a delivery set and dimensions;
• Prepare the opening;
• Determine the number of mounting points and the method of mounting;
• Locate support and mounting blocks;
• For convenience, remove a window sash/ a door leaf;
• Place the product on the blocks;
• Use a spirit level and adjust the height of the blocks to regulate vertical and horizontal positions of
the product;
• Fix the product in the opening;
• Remove unnecessary auxiliary mounting blocks;
• Seal spaces between the window frame and the jamb.
Attention! When using too much or improper insulating foam, it may deform the frame while
expanding. As a result, the product is trapped when opening or closing it. In such cases, the adjustment
hardly helps.
2.2. WINDOW/DOOR MOUNTING METHODS:
2.2.1. Drilling right through the frame (see Fig. 2). In this case, a hole is drilled right through the frame, with
the diameter allowing to fix a fastener. Recommended fastener diameter is 10 mm (minimum mounting depth
– 30 mm);
2.2.2. Anchoring (see Fig. 3), by driving a self-tapping screw (min. 6x40) to the frame. Anchors are fixed to
the building wall using screws or fasteners (minimum mounting depth - 30 mm).
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
2.2.3. Before installation, locate support and mounting blocks (see Fig. 4).
2.2.4. Arrange the blocks so that a frame can shift slightly in case of a higher load
2.2.5. Use plastic or hard wood wedges and plates for the blocks.
2.2.6. Determine the number and distance of mounting points according to the layout (see Fig. 5)
Fig. 2. Window/door mounting through the frame
using a fastener
Fig. 3. Window/door mounting using anchors
Fig. 4. Support and distance block location
Tilt window
(aluminium
windows are
maximally
protected against
Support block Distance block (appropriate support means may serve as distance blocks)
Non-hardening
sealant
Jamb
Screw fastener
Polyurethane
Plaster
Brick wall
Non-hardening
sealant
Polyurethane
Wood screw
Bracket
(anchor)
Screw fastener
or nail
Plaster
Tilt and turn window Single-hung and single
casement window with a jamb Double-hung window with a
jamb
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
Attention! Installation of windows and doors is a very important aspect of their functioning and long
life, therefore, this work must be performed by a qualified assembler who knows how to install
windows and external doors in a proper way.
2.3. SEALING
Seal spaces so that the product frames are not deformed. Use insulating foam according to
specifications. Perform the sealing in such a way to leave no spacing between the frame and a wall and no
void gaps.
Attention! Please install the products in a wall insulation area. Edges of the products must be properly
sealed to prevent entry of water and humid air into them. • Perform additional waterproofing of the
casement from both the inside and the outside, because insulating foam does not insulate humidity. •
Insulate the casement from the outside, since inadequate heat insulation may result in overcooling of
the window or door frame. If insulating foam gets on painted or varnished surfaces, clean it as soon as
possible, since it may aesthetically damage the product.
3. WOODEN WINDOWS AND DOORS OPERATING CONDITIONS
3.1. GENERAL CONDITIONS
While using wooden windows, You should understand that this is a high quality product which
requires a proper operation and maintenance compared to plastic windows.
The products installed are often damaged during the finishing works of the premises – they get
splashed with various solutions, glass units and frames get scratched, fittings get full of various debris; upon
failure to maintain a proper indoor climate (temperature and humidity), windows or doors deform and swell.
Fig. 5 Mounting point layout
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
Make sure the room is sufficiently ventilated during the finishing (plastering, concreting) and several
months thereafter, because an increase in moisture may cause mold formation on the frame, windows may
deform (leak, hard to open and close), varnished surfaces may turn white, and the wood – discolour. Coating
and wood colour may change as a result of splashing or any other contact with construction materials. In this
case, the products are irreparably damaged.
During finishing works, cover the products with transparent film, cardboard, etc., protect painted,
varnished surfaces, glass, locks, hinges and other fittings against a contact with plaster, cement, or paint.
Keep the sealed film for up to 3 days. After installation, remove the film to prevent condensation between the
film and the product. Scratches on a frame or a unit make the product aesthetically damaged. Such defects are
also hard to remove without replacing the product or a part of it with a new one.
Upon getting of various wall plastering, cementing, polishing dust and debris into fittings, the fittings
become trapped, hard functioning, and, sometimes, breaks. Besides, hard to close sashes may deform.
One of the mostly ignored wooden window and door operating conditions is an indoor climate. In case
of improper microclimate, the products swell, deform. As a result, they may begin to rot, mold, become
leaky, hard to use.
Attention!
• Window fogging is one of the symptoms of the inappropriate temperature to humidity ratio
(microclimate) indoors.
• Condensate on the window or doors may result in mold formation, glass tape and frame
deformation.
• Windows and doors must be operated in rooms with not too much or a lack of moisture to
prevent fogging or overdry. In winter, do not raise indoor temperatures above 25 °C, when there is
extreme cold outside. Otherwise, that may lead to a window or door turning part strain, they will
become leaky.
• During indoor finishing or repair works, protect fittings against debris, dust, glue, paint.
Otherwise, it may damage anticorrosion coating or break the fittings.
• When covering windows and doors against damage during construction or using shutters, make
sure not to damage a glass or a frame of the product.
• To prevent a break in window or door fittings, do load overload a window sash, do load support
or lift it using auxiliary items.
• Do not place any foreign items between a sash and a jamb (do not place wires, cables), which
may deform the window or door frame, fittings.
3.2. WINDOW OPENING
A number of opening positions is planned upon receiving an order. Key opening positions (see. Fig. 6):
3.2.1 A handle is lowered downwards – a window is closed.
3.2.2 A handle is turned toward the hinges – a window is opened.
3.2.3. A handle is turned upwards – a window top is opened for ventilation.
3.2.4. A handle is lowered from the upper position at 45° toward the hinges – a leaky window (micro-
ventilation).
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
Fig. 6. Opening European type windows
ROTO NT – OPERATING AND SAFETY
INSTRUCTIONS FOR WINDOW HARDWARE
Key functions
Closed Opened Tilted Avoid mishandling
Optional functions*
45° micro ventilation multistep micro
ventilation 25° multistep tilt 45° crank handle
Window turned in
two directions Opened window
* depending on the scope of supply of the window fittings
In order to assure the long operation of Your windows and security, please
observe the following instructions
Do not subject the sash to
additional loads
Do not press up the sash
against the window reveal
Do not place any objects
between the sash and frame
Where children or persons with mental
disabilities have access to the windows,
the sash is to be safeguard against
turning. Install a child-safe lock or a
key-lockable handle.
Do not leave sashes open during
strong winds
Caution! There is a risk of injury by
slamming window. While closing, do
not grasp between the sash and
frame
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
Warning! To change the direction of window turning, turn the handle only after pressing the
sash against the frame. Otherwise, the sash may fall out from the frame or fittings may fail.
RotoSil surface-finish. Nano surface-finish with silver
look. Optimal protection by means of galvanising,
chromating, and additional sealing.
Increased corrosion protection.
ROTO NT HARDWARE SYSTEM – DIRECT BENEFIT FOR YOUR WINDOWS
Security mushroom cam. Height and contact pressure adjustment and security against break-ins in one. Roto
offers a multifunctional and maximally reliable locking
system. Fixing positions of multifunctional latch bolts are
matching. Thus, changing the purpose of the latch to anti-
burglar does not cause problems even after the window
installation.
Micro ventilation. The disadvantage of today’s tight windows is accumulation of vapour and moisture. Proper
hardware may solve this problem. Roto micro ventilation
is the only component of the casement, the installation of
which is possible in the ready window, just pressing
against a latch and screwing in.
Security
latch
Standard
latch
Opening. A sash-embedded protection against a draught
ensure a sash stability in the opening position. Window
shutting with a slam due to a strong wind became history.
Wrong control stopper. Another multifunctional
component – wrong control stopper and a sash actuator in
one. The actuator prevents a sash from “dropping” on the
handle side, and the sash always locks in on the same
level. The wrong control stopper
prevents a handle misuse. All
of this assures a safe operation
and a long service live of the
window.
Handles and caps. Elegant lines and colours create a harmonious design. Nice shape of Rutoline handles
matches in colour with caps and becomes a real decoration
of interiors.
WE OPEN UP ROOMS
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
3.3. GLASS UNITS
Glass unit is one of the key window and door components, thus, make sure to protect it and avoid split-
provoking actions. The largest part of the window consists of the glass unit, therefore, its thermal
conductivity and transparency features are of high importance.
Attention!
Do not stick any film on glass (especially, on tinted glass). Under different thermal stresses, the glass
unit may break.
The whole surface of the tinted glass must be illuminated or shaded. In only a certain area is in the
shade, unevenly heated glass may crack.
If the glass is exposed to more than 36°C temperature difference, the glass thermo-cracking probability
increases significantly.
Heating appliances must be at least 20 cm away from the glass surface.
A stove, refrigerator must be at least 30 cm away from the glass surface.
A temperature of a heating device next to the glass must not exceed 65°C.
When you start to heat premises, raise the temperature of the radiators gradually, but not rapidly.
When using heaters, do not direct the flow of warm air toward the glass.
Refrigeration and air conditioning appliances near the glass pane also may cause glass cracking.
Glass thermo-cracking may occur due to insufficient space heating (especially, in the absence of
heating in winter).
The glass surface by no means must come into contact with internal or external blinds – a difference in
surface temperatures may cause the glass unit cracking. A distance between the blinds and the glass
surface must be at least 2 cm.
Warning! Keep children away from the cracked or broken glass.
Warranty does not cover glass unit thermo-cracking, cracking due to pressure fluctuations, strokes.
Wrap the glass unit with thick adhesive tape in different directions across the cracking and cover the floor
with cardboard or anything else not to damage the flooring with the falling grass. Contact JSC “Vudesta” or
other professional glass cutters.
4. WOODEN WINDOW AND DOOR MAINTENANCE
WOODEN WINDOWS AND DOORS MAINTENANCE INCLUDES:
• maintenance of internal and external coating of paint or varnish;
• fittings functional check and adjustment;
• lubrication of fittings’ moving parts and closure points;
• seal check;
• seal cleaning, treatment of water drain cavities;
• glass check;
• outer surface coating with special maintenance means (not for aluminium cap coating).
Attention!
• Be careful while cleaning the windows, do not overreach. If needed, use the tools for window cleaning.
• Do not leave children unattended when cleaning the open windows.
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
4.1. HOW TO TAKE CARE OF PAINTED, VARNISHED COATINGS
To keep your windows good-looking and intact, please perform maintenance of painted or varnished
coatings on an annual basis – periodically clean them and use different types of care means for wood coating.
If paint or varnish coating of your windows or doors slightly changes colour, it is a natural consequence
(exposure to sun, air, moisture).
Clean dust and dirt from the surface at least twice a year. Otherwise, mold and lichen may occur. We
recommend to clean solid dirt using Teknoclean detergent. Wipe a clean surface using a water-dampened
sponge or cloth. Do not use abrasive household cleaners as they may damage the varnished coating or varnish
and wood may discolour. Further, abrasive cleaners may damage glass or window fittings. Please carefully
read detergent manufacturers’ instructions and follow them. Before cleaning masonry or other surfaces beside
the window, please cover or otherwise protect the window. Should an acid cleaner be spilled on the surface of
the window, immediately rinse it with clean water. Do not use powder or other abrasive cleaners. We
recommend Teknovax cleaner for varnished and painted surfaces. Before using any of the above means, cover
the surface with a protective layer that protects against dirt; a coating becomes more elastic and glossier. You
may apply these means with a cloth or sponge. No additional polishing is needed. Before using the care
means, be sure to read the manufacturer's instructions.
4.2. HOW TO REPAINT AND RE-VARNISH WINDOWS AND DOORS
Acrylic paint and varnish are most suitable for Your products. They will not have an adverse contact
with seals and former window and door coatings. We recommend acrylic paint of the Finnish company
“Teknos.” Before painting or varnishing the products, please read with the key recommendations for
painting:
• Do not paint sealing joints, seals, locks, handles, plastic trims, silicone joints next to the glass units,
insect nets, or other moving parts.
• Before painting, please prepare the surface. Scrub the former paint or varnish coating with a
sandpaper or a grinding sponge. Remove any dust with a soft dry cloth.
• Do not use abrasive or other surface damaging cleaners.
• Before painting, use grease removers or primers.
• Make sure the painted surface is not damaged when turning it or coming in contact with other
surfaces until the paint completely dries out.
• Before locking the painted or varnished sashes of windows or doors, please lubricate seals with fat
(e.g., cooking oil) so that not to tear a paint or varnish coating off from the wooden surface when contacting it
until the paint completely dries out.
Attention! Grinding, chemical cleaning, painting, varnishing and other finishing works are to be carried
out in a well-ventilated area.
• Please paint open windows only and do not close them until the paint completely dries out. Before
painting, a grease remover or primer must completely dry out.
To know when you need to repaint your wooden products (windows and doors), we recommend you to
set an outside product coating group. You can do this according to the following tables:
Determine your type of wood products:
Soft wood: pine, larch. Hard wood: oak, meranti.
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
Determine the external colour tone of your products. This table provides only varnish colour codes;
you may determine a paint colour tone by yourself:
Colour tone Colour code
Light TM 1531, TM 1702, TV3165x2
Medium dark TM1522, TM 1706, TM 1709, TM 11711, TM 1712, TM 1713, TM 1715,
TM4066/97, TV 16, SAD6, SAD29
Dark TM 1520, TM 1530, TM 1701,TM1703, TM 1705, TM 1717, SAD9
Based on the above data and weather conditions, the finishing group is assigned to the exterior of Your
products:
Load Colour tone Varnish Paint Lubricant
soft wood hard wood soft wood hard wood hard wood
Indirect weather effect - when
products are protected from
rain and sun exposure, but the
outdoor temperature and
humidity affect them
All A A A A
D Normal weather effect - direct
products’ exposure to weather
and sun up to 3rd floor.
Light E E B B
Medium C B C B
Dark C B C B
Extreme weather effect - direct
products’ exposure to weather
and sun over 3rd floor
Light E E B B
Medium E B C B
Dark E B E B
Different surface-renewal intervals are recommended for each finishing group. Based on the table below, you
can determine what product repainting interval is suitable for You:
Finishing group Recommended maintenance
A It is recommended to renew the surface after a period of 5 years.
B It is recommended to renew the surface after a period of 3 years.
C It is recommended to renew the surface after a period of 2 years, since resin leaks and/or cracks
may occur in the wood and frame joints, and, in turn, damage the finishing coat.
D It is recommended to renew the surface after a period of 1 year or if no water droplets are
visible on the surface of the wood after rain.
E Installation is not recommended due to inadequate surface durability under weather conditions.
The above surface renewal (repainting, re-varnishing) intervals are provided with the condition that the finish
coat is regularly maintained.
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
Attention! Finishing of aluminium-coated external surface of products is not required, since aluminium
caps protect wood surfaces against the external weather exposure.
4.3. HOW TO TAKE CARE OF SEALS AND WATER DRAIN CAVITIES
If your window or door has rubber (elastomer) seals, they must be lubricated with silicone grease (e.g.,
for lubrication of car door seals) at least twice a year. This protects seals against cracking, freezing in winter
time, they adhere to the frame much better, making a window tighter. When cleaning windows, be sure to
clean the seals. Various debris may rip or deform them. While inspecting and cleaning seals, open a sash to
check whether there is no clog in the condensate drain cavities of the aluminium drip strip, mounted at the
bottom of a window frame (see Fig. 8). If cavities contain debris, dirt, be sure to clean it to allow the dripped
in water to drain out, otherwise, it may build up on the frame and flow into the premises.
4.4. HOW TO CARE FOR FITTINGS
For a faultless operation and long service life of fittings, it must always be clean and lubricated.
Therefore, carry out the following works twice a year (in autumn and spring):
• Use a dry cloth to remove dust, construction debris, waste from the fittings.
• Check whether hinges of opened windows and doors are fixed securely and have not shifted down. If
they are loose, tighten the screws, or, if necessary, replace them. This is the safest point of a window.
• If hinges have no trip caps, make sure a pin of the upper hinge is fully inserted from below.
• Clean window fittings using nonabrasive and non-powder detergents only (e.g., soapy water). Acidic
and powder detergents may damage anti-corrosive coating of fittings, thus, causing their corrosion. Dry using
a clean cloth.
• After cleaning the fittings, lubricate moving components and the closure points with grease or oil
(see. Fig. 7, 9, 10, 11). Use acid-free and non-resinous grease or oil, for example, domestic oil for sewing
machines.
Fig. 8 Frame with the drip strip, fitted with water drain cavities
Water drain cavities
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
Fig. 8. European type window fittings lubrication scheme
ROTO NT – WINDOW HARDWARE
MAINTENANCE
Maintenance Your windows are furnished with high quality original Roto hardware. This means: user-
friendly service, faultless operation and long service life. By means of regular greasing and
oiling* (at least once a year) all operation-relevant components in the hardware, you maintain
the smooth operation and protect against premature wear and tear. In addition, separate screws
are to be checked for security, if needed, to be screwed in or replaced.
*Please use only acid-free
machinery grease or oil.
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
Fig. 9. Scandinavian type window fittings lubrication scheme
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
Fig. 10. Scandinavian type window fittings lubrication scheme
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
Fig. 11. Uni window fittings lubrication scheme
Only qualified experts of window manufacturers are allowed to perform the following works:
• to replace components of fittings;
• to take off and fit in hinged parts (sashes);
• to adjust hardware (in particular, shears, hinges). If a hinged part is stuck, make sure there is no paint, dust,
stones, or debris in the fitting or moving parts. Remove them, if any, clean and lubricate the moving parts.
Otherwise, you may damage the fittings. In addition, in case of improperly closed fittings, the sash may
deform or fall out from the window frame. The sashes are provided with the above said cavities as well. If
this cavities are clogged, water accumulates between the frame and the glass unit. Being wet for a longer
time, the glass unit start fogging between glass panes, selective coating is oxidized, and spots occur. Further,
the accumulated water dampens the frame (it starts rotting) and glass tapes (they deform).
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
4.5. HOW TO TAKE CARE OF PLASTIC AND ALUMINIUM COMPONENTS
Clean plastic and aluminium components with a mild detergent and water solution. Abrasive cleaners
may scratch the surface of such components, damage the paint. You can use weak alcohol and water solutions
for cleaning. Warning! Be sure to remove protective film from the surface of aluminium caps within 2
months following the date of purchasing the windows. This film is used for temporary surface protection
against dirt, scratches, and impressions, but is not intended to protect the surface of the aluminium caps
against corrosion, moisture, or chemicals. Failure to remove the film within a given period of time may lead
to damage of aluminium paint finish during the later removal of it.
4.6. HOW TO CARE FOR GLASS UNITS
Glass units do not need any special care. They need to be protected against cracking promoting factors.
In addition to the aforementioned, please protect glass units against sash slams, caused by draughts. Do not
leave open windows or doors unattended. Do not turn them at all during strong winds.
Warning!
• Do not clean the glass using powder or abrasive cleaners.
• Never clean stubborn dirt (paint, construction residue mixtures, etc.) using abrasive means (rough
sponges, rags, scissors, knives, razor blades, etc.). They may scratch the glass surface. If after several times of
glass cleaning with chemical detergents, there fat stains appear, it means you are using an inappropriate
cleaner. Try to remove the stains using the other cleaner suitable for glass units. Before using the above
cleaners, please read the operating instructions.
5. WINDOW FOGGING
What is condensate? Humidity depositing on windows or doors is water condensate. It is formed from
water vapour contained in the air. It may occur both on the outside as well as on the inner surface of the glass.
Why is condensate formed? When warm, moist air comes in contact with the cooler surfaces, the
excess moisture condenses in the air. This is because the cool air right above the cool surface is unable to
maintain the moisture in it, like the surrounding warm air. Window fogging can be a warning signal. This
might mean that the indoor humidity is likely to cause invisible damage to other areas of Your home.
How does the indoor humidity occur? There are many factors that contribute to increased moisture
content in the air. A four-adult family, through usual sweating and breathing, releases about 0.30 litres of
water vapour per hour. When cooking three times a day, about 2.30 to 2.80 litres of water vapour is emitted
into the air. One showering – additional 0.30 litres of water vapour. Besides, any other activities involving
water (dishwashing, floor washing, laundry, etc.) humidifies the air. The more water vapour in the air is, the
higher the relative air humidity. Other sources of humidity: house plants, natural gas burning, drying, and so
on.
What is relative humidity? The air can “hold” a limited amount of water vapour only. This amount
depends on the air temperature. When a certain temperature air is maximally saturated with such amount of
water vapour that the air is capable to hold, the relative humidity is 100%. If case of half of the amount that
the air is capable to hold - relative air humidity is 50%. Colder air is able to hold a lower amount of water
vapour than warm one. Thus, there is less water vapour in the air of 10°C heat and 100% humidity than in the
air of 20°C heat and 100% humidity.
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
How to measure the indoor relative humidity? You may use a moisture meter known as a
hygrometer. This is an inexpensive device available in many household wares and tools shops.
What are the symptoms of excess moisture? Window fogging is often a sign of excess moisture
indoors. Check if there is no water or ice on your windows. Make sure, there are no wet spots on the ceiling
or cabinets. Water-filled bladders on the outside wall paint layers can also indicate excessive moisture
indoors.
Does relative humidity affect health? Many scientists and doctors agree that the relative air humidity
affects human health. Recommended indoor humidity is 30% to 50%. According to experts of the World
Health Organization, over 65% relative humidity increases the risk of upper respiratory tract diseases,
besides, such moisture content has a negative impact on patients with asthma or allergies. Lower relative
humidity (<30%) may cause skin dryness, itchiness.
What can excess moisture do to my home? Air moisture excess accelerates physical wear and tear of
a house. Moisture penetrates the house walls and other structures. It may accumulate in hollow cavities and
freeze in the cold season. Upon ice expansion, it slowly erodes the house structures year after year. While, in
the warm season, it melts, thus, causing damp ceilings, walls. Moreover, mold develops in excess moisture.
Does condensate form in winter only? The condensate usually forms during the winter season, yet, it
may also develop when the water vapour in the air contacts the surface of a temperature lower than the dew
point (a temperature at which the air becomes saturated with water vapour and releases dew). E.g., in cold
winter days, humidity of the warm indoor air may condense on the normally cooler glass surface. More
rarely, outside condensation on the windows may form in the spring and autumn (even more rarely – in hot
and humid summer days). Usually this means that the window holds heat inside quite well.
Does the condensation intensity depend on a type of a house? Generally, it does. In the past, when
people did not care about the energy saving, many houses were not as tight, as newly constructed ones.
Thermal insulation materials were unsophisticated. Walls and ceilings were made of more porous materials;
windows were leaking and held warmth several times poorer than modern wooden or PVC (plastic) windows.
Thus, the water vapour in the air could more easily move to and from premises. New construction
technologies, heat-insulating materials make modern houses much tighter and more money-saving in terms of
energy consumption. So are modern windows – heat saving and tight. In an airtight room, a moisture,
resulting from a bathroom, kitchen, laundry, plants, people, etc., increases the relative indoor humidity. In
more adverse conditions, such moisture is harmful and destructive.
How are moisture and comfort interrelated? Feeling comfortable at home depends on many factors,
including temperature and air, relative humidity, air movement, indoor surface temperature, amount of light,
the intensity of solar radiation. Since moisture is one of the main factors of comfort, you should carefully
monitor and adjust the amount of it at home in both winter and summer. Some people believe that the
increased humidity at home provides greater comfort in the winter. They think that it is easier to breathe in
more humid air. However, in case of humid indoor air, the human body does not release its moisture as much
as it should. It also increases the likelihood of colds. Sometimes it happens that the indoor air needs
additional humidification, since a dry air affects negatively the human body as well. So, you need to keep
track of your home environment and make it comfortable and healthy for You and your family. Most people
feel good at 30-50% relative humidity and at about 20-22°C indoors. Probably, many of you have felt
discomfort in summer when there is a very high temperature and humid weather. To increase labour
productivity, to improve sleep and well-being, we increasingly resort to indoor air conditioners, with the
primary purpose to remove excess moisture during the summer. Well-being in summer depends on many
factors: air temperature, surface temperature, relative humidity, air movement, and direct solar radiation.
Majority feels good in the summer when indoor relative humidity is 25-55%, and air temperature is 22-28°C.
Can I can reduce a temperature and save energy if I increase relative air humidity in winter? You may think that there is a relationship between relative air humidity and feeling warm, however, the
human body quickly gets used to the fluctuations in humidity levels. So, if you feel cold at 18°C, moisture
content does not matter. At a higher or lower moisture, you will feel cold anyway.
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
Apart from switching a humidifier off, how else can I still reduce humidity in the room?
• Regularly ventilate the room and, upon a more intensive activity in your home (more people in the
room, more cooking in the kitchen, more frequent laundry, drying in the rooms), ventilate more often (if
windows have air vents, this does not mean that they ventilate sufficiently – it depends on your family’s life
style). When ventilating, turn off heating devices or reduce their operation, thus, saving energy.
• Do not line-dry on heating devices near the window (dry in bathrooms, balconies, or in other
designated places).
• When cooking in the kitchen, use a cooker hood. When washing in the bath or shower, turn on a fan
until mirror does not fog. However, be careful and do not use the fan for too long, it may overheat.
• Do not store firewood at home or in basements, they release moisture while drying.
• Do not grow too many plants.
• If your home is equipped with a mechanical ventilation system, make sure a fresh air comes in.
• If the outside air temperature goes down, you should reduce the amount of moisture in your home.
You can do it by reducing the amount of moisture sources.
Does the amount of condensate depend on a type of windows? Bow and green house windows
usually fog up more often because of insufficient air circulation at the window surface. In addition, they are
cooler as do not contact directly with external walls of a building. In such cases, it is advised to use additional
electric blow heaters which improve the circulation of warm air nearby the windows. High windows
(showcases) fog up more frequently if a window frame is not sufficiently heat-insulated.
Does the window fogging depend on the presence of curtains, roller blinds, or internal louvers? Curtains and other window coverings may increase the likelihood of condensation, because they disturb the
circulation of warm air at the window surfaces from heating appliances. So, windows can fog more intensely
in case of pulled down curtains, roller blinds, or internal louvers.
Why is about 3 cm wide condensate edge formed around the border of the glass? A similar-width
condensate may be formed at the border of the frame and the glass due to the fact that the glass unit frame is
aluminium, which, like other metals, transmits cold and cools down the glass. The condensation forms in
such colder point of the glass pane. Since the middle of the glass remains warmer than its border at the frame,
it does not fog up. The resulting condensate strip does not mean that the window is of inadequate quality or
that it transmits cold inside. It is recommended to use plastic (Swisspacer™ or Thermix™) instead of
aluminium frames. Plastic retains heat much better, a glass surface next to the frame is warmer; this reduces
the likelihood of condensation. This also improves thermal performance of the window.
Why is condensation formed inside a glass pane (inside a frame and a sash)? All hinged parts are
air leaking to some extent. Where a warmer and more humid air comes into contact with a cooler air or
surfaces, it releases moisture while getting cold. This moisture is condensed on the window frames and inner
sash parts. To prevent the accumulation of condensate on such window surfaces and to make it drain outside,
condensate drain cavities are designed inside an aluminium drip strip. If the cavities are clogged,
condensation may accumulate inside the frame, the accumulated water may run into the premises and turn
into ice in the cold season, thus, damaging, deforming or, even, breaking a glass pane. Therefore, it is
important not to forget to check sometimes whether condensate drain cavities in Your windows are not
clogged with mud or debris.
Why is condensation formed on the outside of windows? Dew on the outside of the windows is a
natural phenomenon. This happens to most outdoor surfaces if their temperature drops below the dew point of
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
the outdoor temperature. But it certainly does not mean that Your windows are of poor quality. In fact,
external condensation indicates that the window retains heat inside quite well (heat does not pass to the outer
surface of the window).
Can condensation damage windows? Condensation can make paint and varnish come off the
windows or doors, deform glazing. After a long-term moisture, a window or a door swells and changes its
shape, thus, may close non-tightly or not to close at all. Developed molds may penetrate the wood, make it
rot; window appearance gets worse. Window renewal requires considerable time, effort, and money.
Are there cases where the window condensation is a temporary phenomenon? There are three
cases in which the window condensation is temporary: 1. New construction, repairs, and finishing: wood,
plaster, cement, and other construction materials, used for new construction or renovation, are a considerable
source of moisture. When the heating season starts, the moisture is released outside the structures into indoor
air. Normally, this drying process in structures takes one heating season. 2. Heating season: at the beginning
of the heating season, a temporary condensation may occur. Over humid days of summer, house structures
absorb a certain amount of moisture which disappears after a few weeks of the heating season. 3.
Temperature fluctuations: sudden, severe indoor or outdoor air temperature drop may also cause temporary
condensation during the heating season.
Why is condensation formed between panes of a glass unit? Condensation between panes of a glass
unit is one of the most unlikeable and annoying problems. This phenomenon is not only disturbs the view
through the window, but also, after evaporation, leaves stains on the glass surface inside the glass unit. Such
condensate formation means a damaged glass unit sealant, which is intended to hold a gas that fills up a glass
unit. This is why a glass unit retains thermal properties for a long time. A leaky sealant is usually a glass unit
manufacturing defect. In this case, with regard to the manufacturer's warranty, be sure to contact the
manufacturer to replace the glass unit. However, there are cases of leaky sealant as a result of high water
content inside the window, on the frame, at the glass unit. It accumulates due to the clogged condensate drain
cavities (you can see them in the sash from below). The water, affecting the sealant for a long time, penetrates
it, thus, making a glass unit fogging between the panes. In this case, the glass unit is not covered by the
warranty, and the owner is responsible for this fault. In order to avoid such errors, please be sure to check if
the condensate drain cavities are not clogged to prevent water from entering through the wall structures inside
the window (between the pane and the frame).
How to ventilate a house?
• In the morning, open the windows and ventilate a room for about 20-30 minutes (especially, a
bedroom and a bathroom).
• If your windows have vents, they do not ensure absolute and adequate ventilation. Ventilate rooms 3
to 4 times a day. Make a draught so ventilate rooms faster. Ventilate after cooking, taking a shower or bath.
• When ventilating rooms, reduce or turn off the heat.
• Heating an accumulated humid air in rooms is more expensive than a fresh let-in air. Heat the space
evenly, if a night temperature is below 5°C and more, the condensation on the cooler surfaces (wall corners,
windows, etc.) is likely possible.
6.1. JSC “VUDESTA” PROVIDES WARRANTY TO
6.1.1 sash and case frame – 5 years;
6.1.2 glass units – 5 years;
6.1.3 aluminium drip strips and caps – 5 years;
6.1.4 fittings (handles, locks, hinges, etc.) – 10 years;
6.1.5 seal and silicone joints – 5 years;
6.1.6 paint or varnish coating – no longer than the period after which the product is recommended to be
repainted.
Wooden windows and doors
JSC “Vudesta“ Ordering contacts
Legal entity code: 300151934 Tel.: +370 620 43559
VAT code: LT100001935816 Tel.: +370 614 70496
Dariaus ir Girėno str. 47 A Tel. +370 61532255 www.vudesta.lt
89383 Seda, Mažeikiai d., [email protected]
Lithuania [email protected]
6.2. BY SELLING PRODUCTS WITHOUT INSTALLATION SERVICES, JSC “VUDESTA”
WARRANTS DURING THE WARRANTY PERIOD THAT:
6.2.1 a glass unit will not fog up between glass panes, no dust or stains will occur;
6.2.2 hinges will hold a hinged part and will not break off for its weight or corrode;
6.2.3 prevailing outside weather will not cause irreparable defects of a cover or a frame;
6.2.4 a frame will not crack from its weight or a quality of the material, if installed according to the
manufacturer's instructions and with regard to above mentioned indoor climate conditions;
6.2.5 aluminium drip strips will not deform due to weather conditions, paint will not come off;
6.2.6 paint or varnish coating will not come off or crack, provided that the above mentioned indoor
climate conditions are regarded;
6.2.7 seals and silicone joint will retain elasticity and will not crack.
6.3. BY SELLING PRODUCTS WITH INSTALLATION SERVICES, JSC “VUDESTA”
WARRANTS DURING THE WARRANTY PERIOD THAT:
6.3.1. a glass unit will not fog up between glass panes, no dust or stains will occur;
6.3.2. a glass unit will not crack for natural deformations of the frame. Thermal, mechanical cracks,
cracks due to pressure fluctuations or increased loads on the window are not covered by the warranty;
6.3.3. hinges will hold a hinged part and will not break off for its weight or corrode; inside fixtures will
not break while properly using windows and doors;
6.3.4. prevailing outside weather will not cause irreparable defects of a cover or a frame;
6.3.5. a frame will not crack from its weight or a quality of the material, provided that the above
mentioned indoor climate conditions are regarded;
6.3.6. aluminium drip strips will not deform due to weather conditions, paint will not come off;
6.3.7. paint or varnish coating will not come off or crack, provided that the above mentioned indoor
climate conditions are regarded;
6.3.8. seals and silicone joint will retain elasticity and will not crack;
6.3.9. the seal-sash and the frame-wall joints will retain air-tightness (where the frame-wall air-
tightness is provided for in a contract).
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