INFORMATION ABOUT VELOX BUILDING SYSTEMSvelox-systems.co.uk/download-file/velox-information.pdf ·...

INFORMATIONABOUT

VELOX BUILDINGSYSTEMS

VELOX BUILDING SYSTEM ANDITS PROPERTIES

We build with nature

ood atmosphere is source of good mood

ime is money

ho saves, earns more

e yourself

means complete service

Lately, we have improved our atitude to nature. We would like to live in natural surroundings and our demands on ourliving are increasing. Main points of ecology are kept during the production of the basic element of VELOX buildingsystem - the timber-cement boards. Product technology uses natural material (wood, cement) that is not demandingon energy. There are not any exhalations or dangerous waste, that would have no load on environment. Waste fromproduction from VELOX building system is by the company VELOX-WERK s. r. o.recycled and processed again.VELOX building system has very high thermal insulation without thermal bridge apperance, so it saves energy in thealready performed building. Both of the characteristic meet ecological requirements to save energy sources. Usednatural materials and clear ecological system are guarantee of healthy and satisfying living.

Masive and stable construction from VELOX building system gives perfect connection of thermal insulation characte-ristic and heat accumulation parametres. Advantage of high thermal resistance of the outside part of the wall and heataccumulation of concrete core there is pleasant cool in summers and warm in winters in rooms. It has the ability toabsorb noise from outside. High fire protection with above mentioned advantages generates comfortable living whichwill be valued by folowing generations.

Assembling of VELOX building system is easy and exact, easy manipulation (only 20 % of the total construction ismanual work), using of mechanismus is minimalized, so the speed of building coresponds. It is possible to realizeeven under the temperature of -5°C. The speed is one of the most important characteristic when evaluatingadvanteges of this system, so using of this system pays off in the end.

Investments into VELOX building system will pay back many times not only during the construction itself becauseof low transportation costs, minimal needs of storage place and workers, great amount of plaster saved thanks toexactness of building, but also in finished building where you can save a lot on heating. Walls made of VELOXbuilding system have very high thermal insulation although the thickness is 30 cm, which increases the usage ofbuilding area and means more living space.

It is possible to process VELOX boards as wood - to cut, drill and join with nails, to screw without dowel, to mill. Ahouse built according to VELOX technology can boost with originality as this system can realize all you imagine withno limit. An architect or a designer can use all their ideas when designing non-traditional construction.

Technical and advisory service of VELOX-WERK s. r. o. and their sales organisations will meet your demandsincluding project documentation, special supervising, staff training, realisation of rough building, or construction "key"supply.

variability of usage and function- economy, effectivness, and building price

- fast building and exactness of building- low operational costs and comfort of ecological living.

G

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VELOX

VELOX BUILDING SYSTEM SATISFIES:DESIGNERS -INVESTORSCONSTRUCTION ENGINEERSUSERS

page 1

Basic element of universal usage of VELOX buildingsystem is timber-cement boards VELOX. Source rawmaterial for its production is processed wood-cuts fromneedles trees wood so called "wood chips" - which is90% of board.

Another components are - cement to secure strengthand coherence of boards, and solution of water glassthat stabilizes board against humidity and increases itsresistance against moulds and mice.

VELOX boards take over the features of wood, so it iseasy to work with them and process them - you can cutthem, drill, join with nails, screw without dowell,millthem.

Complexity of building systems is guaranteed by ownproduction of timber-cement elements for ceilings andpartitions, special building ties for construction ofcaseing (panelling) and supplies of steel-space girderfor reinforcement of ceilings. Products for special usagewith noise protection barriers are included in the offer.

In the whole process of production the control is gua-ranteed, if the technology of production is kept, inclu-ding outcoming control of measurement, strength andother standards for board production. Boards must berectangular, the edges must not be crumbled away, theirwidth, length and thickness must be in tolerance ofstandards.Verified technology of production with propercontrol guarantees high quality of boards andconsequently good quality of construction work.

Technical and testing institut in Prague confirmed andcertified VELOX boards and does controls at producerannually. Control is aimed at meeting standards thatmeans supervising the certified product.

The surface is porous, so it ensures excellent conne-ction with plaster and concrete and also decreases andabsorbs the noise.

VELOX boards are hygyenically convenient, their fireresistance is high (WSD - class A ingrediences non-flamable, WS - class B ingrediences hardly flamable).

Thermal insulating features of VELOX boards togetherwith thermal insulating material (polystyren) are rapid-lyincreasing.

VELOX boards are produced in wide range because ofindividual requirements for thermal and noise insu-lationof buildings.

page 2

DESCRIPTIONOF PRODUCTS

TIMBER-CEMENT BOARD VELOX AND ITS FEATURES

Optimal thermal insulation features. Optimal sound insulating features.

Special sfability of boards, mainlystrenght in pulling in bend.

Easy processing (machine) of boards- cutting,- milling,- drilling,- glueing.

Easy joining of boards- nails,- screws,- dowels,- gluining.

Excellent adhesiveness- plaster,- concrete,- cement (puthy).

Hygyenic and health convenience- approved by authorised main hy-gienic in the Czech republic.

Minimal absorbation - minimal volume changes underinfluence of humidity.

ExactnessResistance againist fungis and mice (rodents).

Good permeability.

Good fire resistance - tests accordingto ÈSN 73 0862 (classification of fla-mable level of building material - Bhardly flamable).

DESCRIPTIONOF BUILDING SYSTEM

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SAFETY AGAINSTEARTHQUAKE

According to shear tests inTechnical testing institutionfor strength of building ma-terials in Graz (Austria).

Mantle load 1 000 kN/mShear tension 2

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HORIZONTAL DEFORMATION (mm)

PRODUCTS FORCREATING OF WALLS

BOARDS VELOX WS

One-layer timber-cement boards to produce forms(boardings) carrying, peripheral of external andinternal walls, without special demand on thermal orsound insulation.

good thermal and sound insulation

high strength in pulling in bend

excellent adhesiveness of concrete and plaster

easy and strong joining the board with nails

resistant against shaking from thickness 50 mm

health and hygienically convenient

well resistant against animal and plant pests (vermins)

good fire resistance

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TYPE OF BOARD ACCORDING TO MARKING

AND THICKNESS "d"

TECHNICAL FEATURES

VELOX WS

35 mm* 50 mm25 mm

VALUES

mm

kg / m

W / mK

-

MN / m

N / mm

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2 000 x 500

580

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2 000 x 500

570

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8 000

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570

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Meet the criteria (approved by main authorised hyg. officer)

B - hardly flamable does not increase fire loading

Standard measurementlength l x width b

Coefficient of thermal conductivity(with mass humidity w = 6%)

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Factor of diffusive resistance m

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Grade of flammability

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BOARDS VELOX WS-EPS

Double-layer timber-cement boards, consisting oftimber-cement boards VELOX WS - thickness 35 mmand foam polystyren board to create casing insupporting external walls, with high requirements forthermal insulation.

�excellent thermal and sound insulation features

excellent adhestivness of concrete and plaster

easy and strong joining the board with nails, easy to make

corners and linings

resistant against shaking and vibration

health and hygienically convenient

well resistant against animal and plant pests (vermins)

good fire resistance

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page 6


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Thickness of cash layer ofa board in mm

TECHNICAL FEATURES Measurement, units VALUES

mm

kg / m

W / mK

-

MN / m

N / mm

)

W / mK

-

-

*

+

,

Meet the criteria (approved by main authorised hyg. officer)

B - hardly flamable does not increase fire loading

Standard measurementlength l x width b

Coefficient of thermal conductivityof board VELOX WS 35(with mass humidity w = 6%)

l-

.-

Average area mass

Factor of diffusive resistanceof foam polystyren board

m

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Shear tension

Strength of pulling in bend

Grade of flammability

TYPE OF BOARD ACCORDING TO MARKING

AND THICKNESS "d"

VELOX WS-EPS

135

35

100

VELOX WS

Foam polystyren

115

35

80

85

35

50

95

35

60

Coefficient of thermal conductivityof foam polystyren board

lC

2000 x 500

30

0,11

20-50

0,04

0,4

0,036

D E

2000 x 500

30

0,11

20-50

0,04

0,4

0,036

F G

2000 x 500

29

0,11

20-50

0,04

0,5

0,036

H I

2000 x 500

29

0,11

20-50

0,04

0,5

0,036

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BUILDING TIES VELOX

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Structure of fixing ties with welded distant crossbarsensures fixation of board position in outside and insidecasing of walls, also serving to lay and join of eachcasing board on each other in vertical position of bothcoating.

are produced from tow wire made of steel 11 343, has

round diameter 4 and 5 mm, with help of welding, fulfil the

required strenght in tow 540 MPa

surface treatment is assigned under the plaster

the width of ties are various and depends on constitution of

each layer of a wall

in the case of usage without plaster, it is possible to paint

surface with a special treatment

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Sorts of ties according to shape and usage:- are usually laid in bottom part level of first layer of

casing, in the level of ceiling is put on the inside of supportingwall and when window sill is built.

- are placed continuously when laying and tieingeach board of wall casing in layers cracks.

- are placed on the same level as ceiling is laid onperipheral, supporting wall, one end of a tie on inside casing andthe other one on already drilled holes of peripheral continuing

boards where it is fixed on the end eye with nail in crossdirection.

- are lead through already drilled holes in the center ofend eye of outside boards and inside boards of casing and inthe end eye is fixed with nail in cross direction. In case of usingVELOX WS boards it is recommended to use and place 2. and3. rows of casing board when the strenghth of casing shall beencreased during concreting the whole floor at the same time.

Oneside ties

Both-side ties

Ceilings ties

Tow ties

SORT OF TIE

One-side tie

LENGTH OF TIE(mm)

(thickness of wall)

COMSUMPTION

internal wall

DRAWING OF TIES

external wall

Both-side tie

Ceiling tie

Tow tie 150 - 400

150 - 400

150 - 400

150 - 400

5 pcs / m*of wall

4 pcs / mof crack

4 pcs / mof wall

1 - 2 pcs / mone layer casing

-

8 pcs / m**of wall

4 pcs / mof crack

1 - 2 pcs / mone layer casing

*When calculating a consumption of ties, it is ussuallycounted with 5 pcs / m of wall. Out of which 4 pcs / m aresupposed to fix first row of boards on floor and 1 pce / m tofinish window sills.

**When calculating a consumption of ties, it is counted with8 pcs / m of wall. Out of which 4 pcs / m are supposed to fixfirst row of boards on floor and 4 pcs / m to finish wall underceiling.

PRODUCTS FORCREATING OF CEILINGS

HOLLOW FILLER TILES

Solves horizontal construction of building with methodof lost casing generating iron - concrete monolitic rib'sceiling in axial distance of 500 (300) mm and width of ribis i20 mm. They are glued from cut sizes of boardVELOX WS - thickness 25 mm and are in shape ofhollow blocks with exceeds to make ribs, that standardplan width and length is set by production measures ofboards, it means 500 (300) x 2 000 mm, height is from170 upto 575 mm and its usage depends on rangerequired by used loading of ceiling of building,concrete quality and content of reinforcement.

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ceiling elements are produced in modulating heights 1830,

1660, 1500, 1330, 1000, 660, 500, 330 mmaccording to needs and statics requirements it is possibleproduce any type of the element (convenient usage duringredevelopment works)ceiling construction is fast and easy

ceiling elements have a low weightexcellent adhessiveness of plaster mixtureeasy support when concreting mouldsnot plastured ceilings have very good sound absorbationceilings have good thermal insulationpossibility to perform cassette ceilings into reinforce cross

* Values set up by calculationStatic parametres of ceiling (e.g.) chapter 3.4.2. - Dimensioning of vertical constructions.

HEIGHT

OF MOULD

+

CONCRETE LAYER

(mm)

170 + 50

220 + 50

260 + 50

315 + 50

350 + 50

400 + 50

500 + 50

575 + 50

TOTAL HEIGHT

OF CEILING

(mm)

WEIGHT

OF PANEL

(kg)

CONSUMPTION

OF CONCRETE

(l / m )�

THERMAL

RESISTANCE

OF CEILINGS

R*

( K / W)m�

OVERVIEV OF VELOX HOLLOW FILLER TILES (basic plan measurement 2 000 x 500 mm)

220

270

310

365

400

450

550

625

49

55

67

75

79

91

106

122

85

97

107

120

128

140

164

184

0,52

0,55

0,60

0,62

0,63

0,65

0,70

0,77

PRODUCTS FORCREATING OF CEILINGS

SPACE GIRDERS

�to build ceiling construction, where casing isconsisting of timber-cement VELOX ceiling elements(are put between each blocks for casing and thuscreate reinforcement of ceiling rib)�

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to reinforce supporting over - door and over -

windows lintels

diameter of rods of down strape reinforcement is set so

that girder has all range (span) constant load - carrying

capacity

placing, diameters and class of steel reinforcement are

stated in table 3 chapter 3.4.2

steel R 10 505

MAIN POINTS AND PROGRESSESOF CONSTRUCTION

VERTICAL CONSTRUCTIONS

1. 2.

Way of performing of wall easing with VELOX boards is easy.Onto already prepared basis of a construction real plan ofconstruction is carried over and gradual building of casing wallboards, and usually it start in a corner of an object. First basiclayer of casing is built in the whole range according to projectdesign

On an outside casing one-side tie is put in a way, that first issettled (t + cca 50 mm) from building corner and consequenttirs are settled in regular distance calculating 4 pcs / m of wall(cca 250 mm), where t = total thickness of wall without plaster inmm. Last tie on board is settled cca 50 mm before the end. Tocreate corner you cannot use board slights shorter than 1 m.Insulating material - polystyren - must be cut of exactly by thethickness of connecting board.

Creating a corner:

NOTE: Into already prepared base construction it isrecommended to place steel anchocing reinforcement for betterjoining of wall with the base.

Board is turned by 180° and is put by ties on already drawnplan.

Before settling of inside board into one-side ties a tie must beplace on an end.Outside and inside casing boards must cover up each other atleast by the wall thickness = "t". The best thing to do is to startwith one whole board and one half board.

2.

Fig. 1

Fig. 2

Fig. 3

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Lining of windows and doors id done by reveal stripes, that areclassing wall from three sides. Reveal stripes are nailedbetween wall and nails (min. 3 pcs on board width). Level of sillis left open for concreting. Under the sill there is concrete coreinto which it is recommended to put min. 2 pcs if rib concretesteel that conceal 750 mm into the following wall. Lintels aremade with space steel girders or concrete steel. Beforeconcreting, it is necessary to support upper part of lining ofwindows and doors.

VERTICAL CONSTRUCTIONS


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Hollow filler tiles are put onto carrying boards on wall circum-ference, nailed to inside casing boards (4 pcs of nails / m) andinto gaps between moulds continuous ceiling girders are put,exceeding into carrying walls where rim reinforcement is tiedup.

Console parts (balcony, fillet, oriel) and ceiling up of non-typicalplans is necessary to proove with static calculations.

ATTENTION:

HORIZONTAL CONSTRUCTIONS IRON-CONCRETE MONOLITICRIB (CASSETTE)


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Built casing of walls and ceilings are filled with concrete mixture,including the last concreting of 50 mm concrete board overceiling moulds.On already generated floor you can continue building wallcasing of following floor.

HORIZONTAL CONSTRUCTIONS IRON-CONCRETE MONOLITICRIB (CASSETTE)


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needed classes for concrete strength are set by designer andare stated in projectfor concreting is used concrete mixture of very softconsistence size of grain max. 16 mmtransport of the concrete into casing is done by a pump orbasketsettling of concrete mixture goes on smoothly over the wholecircumference of completety built casing in the samehorizontal layer size cca 50 cm high. When settling concreteyou must insist on proper filling of casing with concreteconrete mixture must be perfectly and constantly solid in eachpart of the constructionconcreting is performed (after concreting of the whole basiclayer of casing) in range of one floor including ceiling, fulfillingthe conditions that guarantees stronger casing:1) While wall casing with VELOX WS boards we recommend

to use tow ties in 2. and 3. layer of the casing, good solidityis reached by puncturing

2) White casing with WSD boards it is not necessary to usetow ties in 2. and 3. layer, good solidity is reached byimmersing a vibrator max. 40 mm or intensive puncturing

construction of supporting walls and following concreting canbe done each by each layer when keeping up the position andtreating the working crackworking crack should be placed where the pressure of freshconcrete was in perpendicular direction on it. Its position incasing must be lower by 10 cm than loading crack of board.Working crack and loading crack CANNOT be on the samelevel.working crack you cannot avoid (appears when interceptingconcreting for longer than 2 hours) is accompanied withsticking out rods, from steel for concreting - diameter 6 - 8 mm,minimal length 20 cm, into layer done before. Distancebetween rods is max. 50 cmduring building casing it is necessary to keep up workingcracks cleanduring remedy, settling, reacning good solidity and treating ofconcrete mixture you must act ccording to rules andstandard regulations

page 14

CONCRETINGOF CARRYING CONSTRUCTION

INSTRUCTIONS FOR WALL CONCRETING

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according to a plan for laying of ceiling a provisional temporarysupport construcion will be built consisting of basic supportand spread planks. Supports must be well-carrying and mustbe built on a strong basis and / or fixed well, distance betweeneach support depends on thickness of spread planks. Whileassembling the construction which slender proportion(proportion of light span Is to thickness H of ceilingconstruction) is bigger than 15, construction bank up isadjusted according to bellow mentioned chartwhen ceilings are built in more floors, the supports must standperpendicularly above each otherVELOX ceiling moulds are laid on assembly joint whenassembling. In case you need to shorten the ceiling elementcavities must be closed so that the concrete doesn´t get in, onthe element with cavities is put on assembling joint facing theprevious elementafter laying the ceiling elements, into created ribs space steelreinforcement is laid exceeding into carrying walls. Requiredcover up of down reinforcement is ensured by distant ports.Girders with damaged latticing mustn't be usedwhile manipulating with the material during assembling andduring laying of concrete provisions must be set up so thatspace steel reinforcement is not damaged permanentlytotal area assembling load of ceiling element before conretinginto constraction cannot exceed 1,5 kN / m2concrete mixture B 20 of soft consistency is used, max. grainsize 16 mmwhile concreting, concreting cannot pile up an one place

concreting of ceiling construction is done in stripes towardsgirders and at the same time ribs and concrete boards areconcreted, that complete the ceiling to gain necessary heightwhen laying concrete mixture reinforcement mustn't move orbe damaged. Concreting of a stripe mustn't be interupted.Working crack may appear only between girders in themiddle of ceiling elementconcrete in ribs and around strenghtening ribs is necessary tothicken properly. In case of using the immerse vibrator, thevibrating head diameter is max. 40 mm. Vibrations with thehelp of reinforcements is not allowed. Thickening can bedone also by intensive puncturingafter ceiling is made, it is necessary to keep the concretemoist till it get hardsupports can be taken away when concrete reach standardstrength according to regulations that are set up. Thesupports are taken away from top floor to ground floorwhile performing the support it is necessary to proceedaccording to valid standards and rules

page 15

CONCRETINGOF CARRYING CONSTRUCTION

ASSEMBLING AND CONCRETING OF CEILINGS

Very important part of finishing work both inside and outside isplastering. Plaster protects construction against severeinfluence of surroundings, mechanic damage and increasesgood characteristics of building material, influence finalapperance and architecture.

For construction of VELOX system of carrying walls there aretechnical recommendations for design preparation and buildingrealisation of plaster related layers and final surface treatment.

Set of recommendations contests summary of performace offinal plaster treatment.

Technical information ensuing from modern experience aregeneral. These general information can't include specificconditions at site.

To use plaster mixture on construction of VELOX system thereis set of technical advice from each producer of dry plaster andmortar mixtures.

When applying it is necessary to keep up the producersinstructions.

Base for plaster at VELOX system is timber-cement board laidon binding. For out side of peripheral construction there will be,in most of the cases, used double-layer timber-cement board,e.g. VELOX WS-EPS.

To start with plaster it is necessary the concrete core maturesand dries properly. Time for drying depends on climate andsituation at site.

It means work that is needed to perform before start ofplastering. The work mainly means protection agains rain andothers:

finishing of roof constructionsettling hole fillings so that the plaster is not damagedafterwardscovering sills with metal sheets or settling sills itself, coveringof attic, window sills with metal sheets and other consols,handles etc.covering those parts of construction that shouldn't get dirty

(windows, doorstep, handles, furniture...)before inside plastering all installation means must befinished (water, gas, electricity, heating). If there is morepipelines next to each other. The whole hole must be filled inwith mortar and covered with glass cotton or netting put incore layer; exceedes no more than 100 mm on both sides

conditions and level of basis from timber-cement boardsstate of strength, homogenity and cohesivity of timber-cement boards, in case VELOX boards are not enough jointwith concrete core then must be anchored with suitable platedowelsperformance of joining ties and exactness of performance ofcorners and so oncondition of surface - whether is clean or dustyto verity whether the surface is not frosento verify the humidity of timber-cement boards, base must beabsolutely dry and if the surface is not dry it must get dry

When plastering inside the temperature of the surface and aircannot drop bellow + 5°C. This temperature must be for 2 or 3days before plastering so that plastered surface reaches thistemperature and must be kept for the time till the plaster getshard (cca 7 days).

Fresh plaster made outside can't be exposed to big sun shineand severe drying wind. To prevent past drying of the plasterand to make easy its processing, specialist work in shadow partof the object. Fresh plaster is kept maist for about 3 days byspraying water on.

VELOX boards content also rest of back and bast but in verysmall amount. When we use plaster on gypsum basis parget forinside treatment these parts can generate brown spots, mainlywhen the surface is not dry sufficiently. When painting we shalluse paints recommended by paint producers.

BASE REQUIREMENTS AND PREPARATION FORAPPLICATION OF PLASTER

PREPARATIONS AND CONCERNING WORKS

BEFORE BEGINNING OF PLASTERING AND FINALSURFACE TREATMENT WE RECOMMEND TO FOLLOWAND VERIFYTHE FOLLOWING:

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page 16

TREATMENTOF SURFACE

We recommend to perform three-layer plasters.

- serves as anchoring layer, enables betteradhesiveness of core plaster onto base. Spray is made ofcement and river send in ratio 1:2, size of send grain is 0 - 7 mm.Spray is laid by trowell sharply on the whole area and fills in allcracks between boards.

consists of cement-lime mortar (size of send grain0 - 7 mm), general requirements for thickness of inside core is15 mm (min. 10 mm), outside core 20 mm (min. 15 mm). In casethe core is thicker, is spread in two layers, when the secondlayer is spread after first one is board enough.

When spreading core layer, the glass cloth is pushed in the lastthird of outside part of peripheral walls, which serves as plasterreinforcement and risk of fissure is lowered. Glass cloth must beresistant against alkali. At the corners of buildings nettings arespread over by 20 cm, each stripe of cloth are covering up in joinspots by 10 cm, in parts where tension is bigger - corners ofwindow and door holes - we recommend to put there clothdiagonally cca 50 x 30 cm.

When spreading core layer of inside plaster in corners andplaces where materials are connected with various changes,the core is cut to base or the connection is spanned byreinforcing cloth.

With outside plastering a cut is made and filled in with plasticcement. Time for maturing of the plaster is 1 day/1 mm of plasterthickness.

- is final surface treatment and you can alsouse parget or various binds of decorating plasters whether itdepends on structure or colour of plaster. The best thing to do isto use dry plaster mixtures to ensure constant quality ofmaterial.

For ceilings we recommend to use hardening mortar as basiclayer together with laying reinforcing cloth over the whole area.As final surface treatment you can use parget or various kindsof decorative plasters. Surface treatment performed in such away is necessary to understand as the whole system. For thisreason we recommend to buy each component from onesupplier or producer and follow his instructions for application.

Plaster-cartons can be used as surface treatment of insidewalls and ceilings.

Spraying

Core layer

Last surface layer

SURFACE TREATMENT OF CEILINGS

page 17

TREATMENTOF SURFACE

APPROPRIATE EQUIPMENTAT CONCTRUCTION SITE

Suitable and working tools is the base of perfectconstructions. Tools for VELOX system is not verydemanding:

�circular saw with widia discs

portable bow-frame saw min. 800 mm long

electric portable circular saw with widia discs

electrical drill + extension lead

drill 12 mm, length min. 350 mm

hammer

assembling ladders

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spirit level, string

immersing vibrator with head - with max. diameter 40 mm

rolling-up meter

steel or wooden supports for ceilings

nails length - 100 / 3,15 mm to join boards

nails length - 63 / 3,15 mm to join ceiling panels

wooden wedges to rebalance the foundations when

necessary

BUILDING SYSTEMS

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