Installation Manual -...

SIG Cavity Wall Insulation®

Installation Manual

Typical Equipment Check List.......................................................................................................

Technical Training, Assessment, Approval and Inspections....................................................

SIG Cavity Wall Insulation Training Programme.........................................................................

Customer Care................................................................................................................................

Pre and Post Installation Checks...................................................................................................

Drilling Operation............................................................................................................................

Drilling Pattern..................................................................................................................................

Injection Machinery.........................................................................................................................

Quality Control Checks.................................................................................................................

The Filling Operation......................................................................................................................

Installed Density Checks................................................................................................................

Making Good.....................................................................................................................................

Technician’s Safety Check Sheet....................................................................................................

Customer Complaints.....................................................................................................................

Buildings Under Construction.......................................................................................................

Survey Report Form.......................................................................................................................

Further References...........................................................................................................................

Notes...........................................................................................................................................

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24-27

Contents

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Technician Training, Assessment, Approval and Inspections

The following is a guide to training requirements prior to approval of installation technician.

Existing Approved Installing Company:• Attend approved training centre for training course on flues, chimneys & combustion air ventilators

• Attend a SIG Retrofit System Support classroom/on-site training course as required. Continuation of on-site training with qualified technician/s overseen by SIG Retrofit System Support (Technical Systems Supervisor)

• Technician assessment and approval. An assessment will be carried out by SIG Retrofit System Support (Technical Systems Supervisor), at the end of the training period to ascertain if trainee technician is competent to become an approved technician. When approved the technician will be supplied with ID card confirming approval and notification sent to British Board of Agrément (BBA)

New Approved Installing Company:

• Technician training for a new approved installing company will be carried out under the guidance and supervision of SIG Retrofit System Support as the System Designer and subsequently audited by the BBA

• Attend approved training centre for training course on flues, chimneys and combustion air ventilators

• Installing company training should include, introduction into the industry’s standards of health and safety and customer care. This will be followed by a 1 day training course by SIG Retrofit System Support covering all basic installation procedures when installing cavity wall insulation

• On-site training under the supervision of SIG Retrofit System Support

• Technician assessment and approval. An assessment will be carried out by SIG Retrofit System Support (Technical Systems Supervisor), at the end of the training period to ascertain if trainee technician is competent to become an approved technician. When approved the technician will be supplied with ID card confirming approval and notification sent to British Board of Agrément (BBA)

On-site Inspections:

• Following approval each Technician will be inspected on-site a minimum of four times in each year evenly spread out through the inspection year

• A Technician’s card will be withdrawn where it is shown that the Technician no longer has the capability, intention or competence to undertake the installation in a correct manner

Note: Prior to assessment and approval the following will be required:

a) A copy of attendance certificate on ACoPs course.

b) Documentation from installing company listing training development.

5

SIG Cavity Wall Insulation® Training Programme

Company: Approved installer: Name of technician: Starting date: Person responsible for training:

ACoPs accreditation or equivalent validated

Fitting cavity barriers

Inductioncourse(office) Sleeving and reinstatement of air bricks

On-site training Operation of blowing machine

Health and safety On-sitequalitycontrol(testboxetc)

Customer care Filling operation to include RF injection nozzle

Pre-installation checks Making good

Drilling patterns Post-installation checks

Drilling operation Flues and combustion air

Attheendofthetrainingprogramme,RetrofitSystemSupport(TechnicalSystemsSupervisor)willtestthe

technician to ensure that he or she has acquired a good basic knowledge of installing Cavity Wall Insulation.

Declaration

Thisistoconfirmthat has completed the above training

on the System(s)

B.B.A no/s

Technical Systems Supervisor signature

Technician’s signature

Date

Representation of training programme, Retrofit System Support training programme available on request.

6

The following points may seem

obvious but it is important to

remember that this could be

the customer’s first experience

of CWI.

Pre-installation

1 Confirm that you are at the correct

address and identify yourself to the

customer, addressing them by name

and presenting your credentials.

2 Request permission to park on the

customer’s property and outline the

access required and the procedure

to be carried out. Ensure you include

information on the use of any

ladders, planks, scaffolding or towers

to be used.

3 Put down dust sheets where required

and advise of any additional

precautions required, for example

removal of items from shelves or

window sills. Offer assistance if

required.

4 If it is not a detached property

confirm that all the neighbours are

aware of the work being carried out.

5 Ensure any vehicles or washing that

may be damaged are removed

and windows are closed before

commencing work.

6 Identify and communicate any issues

including defects to the customer

and report on work card before

commencing work.

During installation

1 Request permission to use the

customer’s toilet facilities if required.

2 Avoid criticism of competitor

companies.

3 Do not respond negatively to any

complaints simply follow procedure

by recording, referring to your

company and assuring the customer

that it will be dealt with in an efficient

and timely manner.

4 Do not argue with the customer

under any circumstance.

5 Ensure any damage caused however

small is reported both to the customer

and to your company and the

customer is advised it will be dealt

with appropriately.

Post-installation

1 Remove all rubbish and thoroughly

clean up any mess once work is

complete.

2 Ask the customer to examine and

inspect the work carried out and sign

any appropriate compliance and

satisfaction paperwork.

3 Inform the customer that the

guarantee is issued by the Cavity

Insulation Guarantee Agency (CIGA)

who will send the certificate directly

to the customer within four to six

weeks.

Customer Care

75

Pre - Installation Checks

Must be carried out by theinstallation crew to ensure that,the property is suitable and tofamiliarise themselves as to theproperty details, confirmsuitability, carry out safety checkson all heating appliances, andcheck that all ventilators are of therequired standard and functioningcorrectly.

Post - Installation Checks

Must be carried out to ensure thatthe installation has beencompleted, and that no damagehas occurred to the property.

All heating appliances / ventilatorsmust be checked for safeoperation and results documented.Make sure that the customer issatisfied before leaving site.

For Further Guidance See -:

C.I.G.A Technicians Guide To BestPractice.

1. Suitability of External Walls forFilling with Cavity Wall Insulation(Existing buildings)

2. Installing Cavity Wall Insulation

3. Flues, Chimneys andCombustion Ventilators

4. Working at height

Pre and post installation checks

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’C.I.G.A. Technician’s Guide To Best Practice.

Pre and Post Installation Checks

team

8 6

• Every care should be taken tominimise the amount of debris thatfalls into the cavity.

• When drilling holes through theouter leaf, make sure they do notslope inwards towards the cavity.

• When drilling facing brickwork,make sure the holes are drilled atthe base of the mortar joint.

• All drilling must be completed onone elevation and at least 2m ofthe adjacent elevations beforeinjection commences on thatelevation.

• Care should be taken whendrilling next to building features. Itis advisable to drill at least twocourses below such features.

• With a new build property, youcan fill via the inner leaf, before thewalls are plastered. However allholes must be drilled in the mortarjoints and not through the blocksor bricks.

Drilling Operation

96

• Every care should be taken tominimise the amount of debris thatfalls into the cavity.

• When drilling holes through theouter leaf, make sure they do notslope inwards towards the cavity.

• When drilling facing brickwork,make sure the holes are drilled atthe base of the mortar joint.

• All drilling must be completed onone elevation and at least 2m ofthe adjacent elevations beforeinjection commences on thatelevation.

• Care should be taken whendrilling next to building features. Itis advisable to drill at least twocourses below such features.

• With a new build property, youcan fill via the inner leaf, before thewalls are plastered. However allholes must be drilled in the mortarjoints and not through the blocksor bricks.

Drilling Operation

7

The SIG Cavity Wall Insulation® systemuses 22/25mm diameter holes.

Subject to the constraints given below,the distance between successiveinjection holes should be a maximum of1.35m. Wherever possible, a diamondpattern should be used so that aninjection hole in one row is midwaybetween two holes in the rows aboveand below:-

With sloping boundaries, for exampleunder the eaves of a gable end, thecentres between the successiveinjection holes should be between1.0m and 1.35m depending on theslope of the boundary. The nearer theboundary is to the horizontal, thecloser together the holes should be.

The lowest blowing holes should notbe more than 0.8m above thehorizontal dpc.

Extra injection holes will be requiredto ensure completeness of fill aroundbuilding features.

Where lintels project beyond a verticalcavity closure the 350mm rule shallapply:-

At the tops of walls and under gables,the topmost injection holes shouldnot be more than 350mm below theupper edge of the cavity to be filled.Additionally under horizontalboundaries, for example under eaves,windows or lintels, the centresbetween the topmost injection holesshould not exceed 1.0m:-

Drilling Pattern

1.35m

1.35m

350mm

1.0m 1.0m 1.0m

350mm

.

.

.

10 8

350mmmaximum

1.0 - 1.35m

1.35m

1.35m1.35m

0.8m maximumabove dpc

SIG Cavity Wall Insulation® Typical drilling pattern - frontage

SIG Cavity Wall Insulation® Typical drilling pattern - plain gable end

1.0m

1.0mmaximum

350mmmaximum

350mmmaximum

350mmmaximum

118

350mmmaximum

1.0 - 1.35m

1.35m

1.35m1.35m

0.8m maximumabove dpc

SIG Cavity Wall Insulation® Typical drilling pattern - frontage

SIG Cavity Wall Insulation® Typical drilling pattern - plain gable end

1.0m

1.0mmaximum

350mmmaximum

350mmmaximum

350mmmaximum

9

Typical Detached House Elevations

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Injection Machinery

SIG Cavity Wall Insulation® must be installed using an approved blowingmachine. The following blowing machines are approved by the BritishBoard of Agrément (BBA):

• Peak Diesel

• Peak Electric

• Stewart Energy Diesel (750 & 1000)

• Stewart Energy Electric (500)

• Timco

• Knauf Insulation Minor/Major

• Taskgrip

As far as the handling andtreatment of SIG Cavity WallInsulation® is concerned, theblowing machines are virtuallyidentical.

The job of each piece ofequipment is detailed below:-

• The BALE BREAKER opens upthe compressed bale of blowingwool

• The WORM SCREW meters theblowing wool at a fixed rate

• In the PELLETISING section, thewool length is reduced by theshredder bars and a pelleted formof the desired shape is given bycirculation of the wool within thepelletising chamber

• The adjustable RESTRICTORPLATE at the base of the pelletisingchamber controls the woolresidence time in the chamber,which in turn controls the pelletcharacteristics to achieve therequired installed density

• As the processed insulationpasses through the ROTARYVALVE it enters the airstreamgenerated by the BLOWER andpasses into the blowing hose andthrough the nozzle for delivery into the cavity being insulated. Apressure switch is connected tothe machine control circuits, whenactuated it causes the driveclutches to disengage thus stoppingthe blower and wool feed once thecavity wall area is filled to therequired density.

A dump/lift valve arrangement isfitted to all blowing machines and isused for fine control of theinstalled density.

Each blowing machine is identified as being approved by a plate/labelshowing the BBA certificate No. 11/4834 (SIG Cavity Wall Insulation®).

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Injection Machinery


• Peak Diesel

• Peak Electric



• Timco


• Taskgrip










role of each piece of

1310

Injection Machinery


• Peak Diesel

• Peak Electric



• Timco


• Taskgrip










11

Injection NozzleHopper

Material Feed Worm

Wool

Pelletisers

Rotary Valve

50mm ID Blowing Hose

Restrictor Plate

Blower

14 12

Quality Checks

1.Pressure SwitchA daily calibration check should becarried out to ensure that theblowing machine pressure switch isoperating correctly.

Start the engine and insert thenozzle into a hessian bag. Startblowing wool into the bag whilstwatching the blowing pressuregauge. Block off the nozzle gentlyinside the bag. Blowing shouldcease when the gauge registers260 - 280 mbar.

If necessary adjust the switch. Toadjust, using a small screwdriverturn the screw in to increase thepressure and out to lower thepressure.

2.Wool Density CheckStart up machine and blow into ahessian bag. Ensure machine isoperating correctly.

Fill test box with wool and notetime taken (between 20 - 35seconds).

Check visually that box has beencompletely filled.

Empty contents of box into aplastic bag and weigh (optimumweight 0.9kg equates to installeddensity of 18kg/m3).

If weight is below 0.8kg, closerestrictor plate one quarter turn ata time, blow into bag to clearpelletiser and fill test box.

Re-check weight.

If weight is greater than 1.0kg,open restrictor plate one quarterturn at a time (or reduce enginerevs slightly).

Blow into bag to clear pelletiserand refill test box.

Re-check weight.

NOTEThe air dump valve fitted to theblowing machines should be usedfor fine control of the density.

To increase density - reduce airbeing dumped.

To reduce density - increase airbeing dumped.

Recommended blowingmachine operating pressure:

• Air only: 120-160 mbar

• Air & wool : 180-220 mbar

Quality Control Checks

: 180-220 mbar

1512

Quality Checks

1.Pressure SwitchA daily calibration check should becarried out to ensure that theblowing machine pressure switch isoperating correctly.

Start the engine and insert thenozzle into a hessian bag. Startblowing wool into the bag whilstwatching the blowing pressuregauge. Block off the nozzle gentlyinside the bag. Blowing shouldcease when the gauge registers260 - 280 mbar.

If necessary adjust the switch. Toadjust, using a small screwdriverturn the screw in to increase thepressure and out to lower thepressure.

2.Wool Density CheckStart up machine and blow into ahessian bag. Ensure machine isoperating correctly.

Fill test box with wool and notetime taken (between 20 - 35seconds).

Check visually that box has beencompletely filled.

Empty contents of box into aplastic bag and weigh (optimumweight 0.9kg equates to installeddensity of 18kg/m3).

If weight is below 0.8kg, closerestrictor plate one quarter turn ata time, blow into bag to clearpelletiser and fill test box.

Re-check weight.

If weight is greater than 1.0kg,open restrictor plate one quarterturn at a time (or reduce enginerevs slightly).

Blow into bag to clear pelletiserand refill test box.

Re-check weight.

NOTEThe air dump valve fitted to theblowing machines should be usedfor fine control of the density.

To increase density - reduce airbeing dumped.

To reduce density - increase airbeing dumped.

Recommended blowingmachine operating pressure:

• Air only: 120-160 mbar

• Air & wool : 180-220 mbar

13

The Filling Operation

Filling should proceed from thebottom to the top of walls andfrom the most to the leastrestricted sections. Filling from thebottom ensures a uniform fill.

The blowing machine is simple tooperate, 1 - 2 bales of wool can beemptied into the hopper at once.Do not allow the hopper to getless than half full. The feed rate isautomatically controlled by theworm screw and the onlynecessary adjustment will be to therestrictor plate, dump valve orengine revs in order to obtain thecorrect density fill.

Insulant should be introduced intoeach injection hole in turn. Startingat one end of the elevation and atthe bottom of the wall and workingacross from side to side.

The 22/25mm diameter tip of thetapering nozzle is located in thepredrilled hole. Nozzle rotation isnot required.

Once the blowing unit has started,the insulant will continue to flow ata steady rate until a signal from thepressure switch de-energises theclutches indicating that the part ofthe cavity adjacent to the injection

hole is now filled to within therequired nominal density of18kg/m3.

Once the nozzle has been movedto the next injection hole, injectionof insulant can continue byactivating the start switch.

16 14

Typical SIG Cavity Wall Insulation® Drilling pattern - frontage

Typical SIG Cavity Wall Insulation® Drilling pattern - plain gable end

1714

Typical SIG Cavity Wall Insulation® Drilling pattern - frontage

Typical SIG Cavity Wall Insulation® Drilling pattern - plain gable end

15

Installed Density Checks

The wool to be used has beensubjected to strict quality controlprocedures during manufactureand it is necessary to check thathas been kept clean and dry.

To check that the correct fill hasbeen obtained, the number ofbales used on site and averagecavity width should be recorded onthe work card and an averageinstalled density calculated.

Cavity widths can varyconsiderably within one building.Therefore at least ten cavity widthmeasurements should be made atvarious heights in the building(cavity widths can tend to vary thegreater distance from groundlevel).

NB. For an average density of18kg/m3 the following coveragecan be obtained.

For Example:

Gross Area of Walls 110m2

Less openings 27m2

Net Area 83m2

Average Cavity Width 65mm = 0.065

Volume of Cavity 83m2 x 0.065 = 5.40m3

No of SIG Cavity Wall Insulation® bags used = 5.5 x 17.6kg = 96.8kg

5.40m3

Cavity Width - mm 50 55 60 65 70 75 80 85 90 95 100

Coverage - m2/bale 19.53 17.8 16.3 15.0 14.0 13.0 12.2 10.9 10.8 10.3 9.80

= 18kg/m3

18

The importance of making good after the installation, cannot be over-emphasised. Leaving the property in the same condition that you found it in is the best possible recommendation and source of new leads.

Making good holes

A mortar mix should be made up before the installation begins. That way the preceding holes can be made goodwhilethenextholeisfilling.Italso allows adjustments to be made to the colour match when required.

Make sure that the customer understands that although every effort is made to match the existing finishparticularlytopaintedareasitmaybedifficultduetoweatheringetc.

Brick faced properties

a) Wet an area of wall to give you a better match indicationb) Choose the correct type and colour of sand for the local area.c)Different parts of the building may require different colours/mixes to match the existing mortar (mortar dyes may help to achieve thematch)

In some cases it may be necessary to touch-up the corners of the brick with mortar dyes.

Rendered/Tyrolean-faced / pebble dash and spar chipping finishes walls

Special care must be taken with rendered walls, the colour and texture of the facing type being chip/pebble/spar-chippings etc, these should be copied as closely as possible. It may be possible to re-use spar chippings from drilling debris. Remember that your mortar mix may need to be slightly wetter, in order to retain the chippings.

Making Good

19

17

Technicians safety check sheet

Installing firm’s name address and contact details

(or letterhead)

Technician’s safety check sheet - Flues, chimneys and combustion air ventilators

This check sheet specifies the minimum checks, and actions that must be carried out during the installation of CWI tobuildings containing fuel-burning appliances.It must be read in association with “Technicians guide to best practice - Flues, chimneys and combustion air ventilators.”

Survey, identify and record• Fuel type(s) Gas - Oil - Coal - Wood• Appliance type(s) Boiler - Gas Fire - Open Fire - Balance Flue• Flue/chimney location(s) Internal wall - External wall, front, side, rear• Location of combustion air ventilator(s) Front elevation - Side elevation - Rear elevation

Pre-Installation• Appliance identified, flue/chimney routes, internal & external Y N• *Appliance run Y N• *View and note flame colour Y N• *Combustion gases checked externally Y N• *Appliance checked (smoke test/spillage test) Y N• *Smoke/spillage test satisfactory Y N• Combustion air supply adequate Y N

Installation - Visually check• Flue/chimney routes to avoid drilling into them Y N• Combustion air ventilator(s) unobstructed Y N

Post Installation• *Appliance run at maximum for a minimum of five minutes Y N• *Visual check that flame compares with pre-installation Y N• *Smoke test/spillage test satisfactory Y N• *If results were unclear, re-test after a further 10 minutes Y N• *Re-test satisfactory Y N*Only on appliances fitted to flues & chimneys on external walls

If there is any doubt or any question answered ‘N’ then - 1. Switch OFF appliance and2. Issue WARNING NOTICE and3. ADVISE occupants and owner, and4. CALL OUT a competent body or person such as fuel supplier or maintenance contractor (e.g. CORGI for gas)

Installation address Name of Technician

Signature

Date / /20Important:• It is the installing firm’s responsibility to ensure that the Technician is training to be able to discharge these responsibilities• Failure to carry out these safety checks could lead to the death of an occupant and prosecution of the Technician.

Comments

routes to avoid ingress of material

17



(or letterhead)









Signature


Comments

17



(or letterhead)









Signature


Comments

17



(or letterhead)









Signature


Comments

17



(or letterhead)









Signature


Comments

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(or letterhead)









Signature


Comments

Technician’s Safety Check Sheet

Installingfirm’sname,addressandcontactdetails(orletterhead)

20

Customer Complaints

Complaints - Primary Air Ventilation

All complaints received concerning primary ventilation must be investigated immediately. A blocked fluefollowingcavitywallinstallationcould result in CO2 poisoning for the occupants of the property. This could lead to serious injury or in worst cases, could be fatal. Post installation checks of the property should pick up any problems caused during the installation. (For more information, refer to CIGA’s Best Practice Guide for “Flue, Chimneys & Combustion air ventilators”).

Complaint Procedures

In the event of an approved installing company receiving a customer complaint, the following procedure should be adopted:

a) The customer shall be contacted within 24 hours of the complaint and any problems or defects identifiedorassociatedwiththeworks shall be responded to within 5 working days.b) All complaints are to be resolved within 6 weeks of the complaint being received with the corrective

actions recorded, and a full written record of all communications with all parties regarding the matter to be keptonfile.c) Where a complaint is not resolved within6weeksthenRetrofitSystemSupport must be informed of the reasons why, and appropriate action will then be taken to resolve the matter.

All customer concerns or enquiries must be dealt with in a pro-active manner, with the intention of resolving any customer concern as quickly as possible to the customers satisfaction.

Damage caused during Installation

If any damage is caused to the property however small, every effort should be made to rectify the problem before leaving site.

In the event of the problem not being resolved the Technician must inform his company immediately and inform the customer that the matter will be dealt with appropriately.

In all cases you should record any complaint made by the customer and inform your company as soon as possible.

Rectification Procedures

In the event of having to carry out anyrectificationmeasurestoresolvea complaint you must:

a) Carry copies of the documentation specifying the remedial action required.b) Ensure you have all equipment and materials to carry out the remedial works.c)On arrival introduce yourself to thecustomerandconfirmwhatyouare there to do.d) Be courteous to the customer at all times.e)Donotgetdrawnintoanyconflictwith the customer, refer any issues to your company immediately.f)Carry out all remedial works in a professional manner.g)Clean up and remove debris etc from site to the customers satisfaction.h) Ensure that the customer is satisfiedandwherepossibleobtaina signature of satisfaction before leaving site.

2118

Buildings Under Construction

Injection must not be undertakenuntil all cavities are sealed. Internalinstallation should preferably takeplace before the walls areplastered.

Drilling must be in the mortarjoints, to avoid spalling to the cavityface of the blocks.

Other properties on site should beinspected and defects reportedprior to the insulation beinginstalled.

2219

Survey Report Form

For buildings under construction, before installation of cavity wall insulation

Installer’s job reference:Job allocated to:Date of proposed installation:Client:Client’s order no:House type or drawing reference:Plot number:Site address:

To be installed according to Agrement CertificateNo:Special instructions to Surveyor and/or Operative:

Details of building to be insulatedDetached / semi pair / terrace / other - specifyExpected cavity wall area to be filled: sq.m.Design width of cavity: mmInternal/External fillingAreas of external cavity wall to remain uninsulated:

ConstructionType of brick:Type of wall tie:Number of flues on outside walls:Mortar joints filled to external face, with weatheredbucket handle or birdsmouth jointing

Measured width of cavity: mmHeight of building: mMeasured area of cwi: sq.m.Roof complete: Y / NCavity sealed at windows: Y / NAir bricks sealed: Y / NWeep holes to lintels Y / NDPC free of significant mortar buildup: Y / NCavity free of significant mortar extrusions Y / NCavity ties free of significant mortar buildup Y / NExposure of building satisfactory Y / N

Remedial works required before installation:

Remedial works to be undertaken by Client / Installer

Note: The installation cannot be undertaken unless allanswers are ‘Y’ (yes) or the remedial works have beencompleted. The Operative shall document any remedialworks he undertakes before, or during installation.

Surveyor’s declaration

I confirm that I have inspected the building, according toAgrement Certificate Number / and therequirements of the BBA. As far as can be practicallydetermined from the visible construction, the building issuitable for installation.

Name:Signature:Date:Site Agent:

I acknowledge receipt of the survey form and confirmthat it is factual. I also confirm that the cavity walls havebeen built according to the applicable regulations andstandards. The cavity walls have been inspected duringconstruction. I am not aware of defects in theconstruction of the cavity walls.

Name:Signature:Date:

Operative’s job record

Result of QC test(s):

Materials Used:

Special remarks:(continued overleaf)

Name:Signature:Date:

Appendix B revision 1

23

Further References

For best practice documents please visit the members area of www.ciga.co.uk where the items listed below can be found:

C.I.G.A. Guide to Best Practice Guide to Best Practice for Members

C.I.G.A. Working at Height Guide Health and Safety guide to working at height

C.I.G.A. Assessors Guide Suitabilityofexternalwallsforfillingwithcavitywallinsulation

C.I.G.A. Guide to Best Practice: Installing CWI

C.I.G.A. Guide to Best Practice: Flues, Chimneys and Combustion air ventilators

C.I.G.A. Guide to Best Practice: Revised page 7 of Flues, Chimneys and Combustion air ventilators GBP

C.I.G.A. Guide to Best Practice: Ladder Restraints

C.I.G.A. Guide to Best Practice: Flat Roofs

CWI Technical Note: Drilling Near Flues

CWI Technical Note: Flueless gas Fires

CWI Technical Note: Conservatories

CWI Technical Note:

Ventilators

CWI Safety Note: Internal Flues

Safety Note: Core Drilling

CSCS: Application form

BBA Assessment & Surveillance Scheme

24

Notes

25

Notes

26

Notes

27

Notes

Photography and copy contributed by Knauf Insulation.Ref: Version 4 - March 2015

ID - 002

Talk to the Retrofit System Support team to become part of our Installer Network.

www.sig360retrofit.co.uk

Tel 0844 5766 762

Email [email protected]

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