Supafil® Loft Installation Manual
Contents
1. 15kg m is as follows Density Weight 15kg m Target weight Target weight 15kg m x 50m Target weight 750kg Volume oom Installation time to blow in 750kg at a blow rate of 6 2kg per minute is as follows Installation time Target weight Installation time 750kg Installation time 2 hour 58secs Blow rate 6 2kg per minute Target weight of blown material for density of 17kg m is as follows Density Weight 17kg m Target weight Target weight 17kg m3 x 50m Target weight 850kg yure 50m Installation time to blow in 850kg at a blow rate of 6 2kg per minute is as follows Installation time Target weight Installation time 850kg Installation time 2 hour 17mins O6secs Blow rate 6 2kg per minute Therefore to achieve an installed density of 15 17kg m installation time for the whole loft area should be 2hour 58secs to 2 hour 17mins O secs It is also possible to calculate how many bags of material should be used to achieve the optimum installed density of 15 17kg m Blown installation for open lofts step by step guide 5 Install the insulation e Wear appropriate personal protective equipment dust suit face mask and goggles e Develop a blowing plan so that the loft can be filled systematically and efficiently to the target height using available access e In order to achieve the expected density range of 15 17kg m it is recommended that o Blowing is undertaken2. blowing machinery size length and condition of delivery hose blowing technique installed depth environment and specific features of the area to be installed e In order to achieve the specified density range i e 15 17kg m it is recommended that the machine is adjusted and specifically set up to deliver the correct installed density at the start of the installation This can be done by o Undertaking an initial installation density check by blowing a test area of known volume weighing the material blown and calculating the density see example calculation below o Measuring the blow rate by filling a hessian sack for a set time period and checking the time to install an initial known area of the installation see example over page e Supatil Loft gives excellent thermal properties at low densities This means that the machine settings will be different from those used with other higher density insulants such as cellulose and stone wool materials Large capacity blowing machines with large hose diameters are recommended for this blowing application in which low material feed and medium to high air volume are the most appropriate settings Blown installation for open lofts step by step guide EXAMPLE Initial Installation Density Check Test box volume length 0 447m x width 0 447m x depth 0 5 m 0 1m Required weight for 15 kg m 1 5 kg known due to the following calculation Density Weight 15kg m Tar
3. from a horizontal hose at a distance of approximately 2 metres from the point at which the wool settles o The projection of wool at close proximity and directly into corners and around features is avoided as this can increase material usage o Drifting and uneven installation is avoided as this can increase material usage o The target insulation depth is regularly checked during the course of the installation using gauge tapes and the depth stick o In large volume installations the approximate usage of material installation time and approximate area of installation are monitored throughout the course of the installation as a progressive guide to the achievement of the correct final installed density Installation Technique 1 The pipe should always be as straight as possible and not coiled up at the bottom of the loft hatch or by the blowing machine 2 Where possible ensure the pipe is held horizontally during installation as the projection of fibre flow towards the floor will increase the installed density 3 Do not interfere with the flow of fibre exiting from the installation pipe i e controlling fibre flow direction by covering output with operators hand This will create higher density by compressing exiting fibre 4 Do density checks at the start of the installation repeat checks on a regular basis i ee ee Blown installation for open lofts step by step guide EXAMPLE Progressive time checks Us
4. KNAUFINSULATION its time to save energy Supafil Loft Installation Manual Knauf Insulation is part of the Knauf Group of Companies a family owned global building material business with annual revenue in excess of 5 billion Leading insulation manufacturer As one of the world s leading insulation manufacturers we are active in more than fifty countries and have over thirty manufacturing sites producing glass and rock mineral wool extruded polystyrene XPS expanded polystyrene EPS extruded polyethylene XPE and also wood wool products Northern Europe The Knauf Insulation business supplies a wide range of insulation products and design services to Denmark Norway Sweden Finland United Kingdom and Ireland We produce insulation of the highest quality along with customer service to continually enhance industry standards Research and development Our investment in research and development has created an unrivalled portfolio of highly sustainable energy efficiency products Furthermore our compression packaging and blowing wool technology leads the insulation industry Innovative solutions Knauf Insulation provides a range of products that are easy to install and offer innovative solutions to provide comfort and energy efficiency Long term equal value partnerships with our customers is an integral part of our approach INDEX Saving Energy 3 Supafil Loft Perfor
5. get weight Target weight 15kg m x 0 1m Target weight 1 5kg Volume 0 1m As an example if the actual material in the test box weighs 1 56 kg Actual density Weight Actual density 1 56kg Actual density 15 6kg m Volume 0 1m The actual density of 15 6kg m is within the target range of 15 17m and would be acceptable Correct Fill Projection It is essential when blowing Knauf blown wool into loft spaces that the material is projecting between 1 5m and 2m from the end of the pipe If this is not the case then machine setting changes need to take place They can be done by following the procedures below Blowing Machine Setup 1 Ensure use of internally ribbed pipe and not smooth internal pipe as this will affect the fibre flow and distribution within the pipe which may cause blockages in the pipe 2 Increase the amount of air going through the pipe by shut ting the air relief valve 3 If the air relief valve is fully closed and still not producing the correct amount of air to project the material to the correct distance you should a Increase the machine revs on the engine or b Close the material feeder gate You may have to do a combination of the two to get the right balance We need to ensure you put enough air through the material to re energise the wool to ensure the correct density no Blown installation for open lofts step by step guide EXAMPLE Blow Time Check 1 Calcula
6. imal thermal properties and excellent coverage and blowing characteristics All dimensions are nominal Blown installation for open lofts step by step guide EE Arrive on site prepared e To ensure that the installation can be completed without disruption the following items are required as a minimum This is to include o Installation materials o Ensure the blowing machine switches and gauges are in good condition and appropriate for use with Supaftil Loft o Access equipment o Quality check equipment o General tool kit o Safety and personal protective equipment o Cleaning equipment 2 Survey the loft space e Assess suitability and load bearing capability of loft to ensure it is suitable for the work activity e Measure and calculate the loft installation volume correcting for joists water tanks flues and any other features Ensure that the best most accurate assessment of the installation volume is made as this is used to calculate the overall installed density of the installation e Determine depth of wool required to meet customer request contract regulation U value e Check for electrical TV water ventilation provisions and other features that need protection or shielding Ey Prepare the loft for installation e Protect eaves and shield ventilation paths to a minimum 130mm above intended insulation height e Protect areas below and around the water tank and water installations to a m
7. ing the information from the blow rate check it is known that the total weight of material in the given loft should be between 750kg to achieve a density of 15kg m and 850kg to achieve a density of 17kg m Material weight per bag of Supafil Loft 15 5kg Total number of bags required to achieve a density of 12kg m 750kg 48 38 bags 15 5kg Total number of bags required to achieve a density of 14kg m 850kg 54 84 bags 15 5kg Therefore to achieve an optimum density of 15 17kg m a total of 48 38 to 54 84 bags should be used EXAMPLE Progressive check on bag usage 1 Blowing rate The known blowing rate from the earlier example is 6 2kg per minute 2 Calculate total weight of installed material Monitor the amount of time taken to install an area of known volume it is recommended to use a number of areas to confirm a consistent density distribution Area 1 10 00m length x 5 00m width x 0 50m depth 25m As an example if this area took 61 minutes to install total material weight would be 6 2kg x 61 minutes 378 2kg Area 2 10 00m length x 6 00m width x 0 50m depth 30m As an example if this area took 74 minutes to install total material weight would be 6 2kg x 74 minutes 458 8kg 3 Calculating the installed density of the test area Area 1 Actual density Weight Actual density 378 2kg Actual density 15 13kg m Volume 25m Area 2 Actual density Weight Actual de
8. inimum 50mm above intended insulation height Do not insulate below water tanks unless they are in an elevated position e Shield electrical and TV cables e Protect loft hatch to a minimum 50mm above intended insulation height e Construct walkway s to ensure access to all required service areas e Position gauge tapes at intended insulation depth knauf Blown installation for open lofts step by step guide 4 Set up the blowing machine e Advice on installation pipes 1 Ensure hose length is a minimum of 40 meters 2 Ensure hose diameter is a minimum of 75mm and where possible use 100mm 3 Try to avoid adding extension hoses you will need to look at increasing the air pressure if extensions are added also they must be of the same diameter as the standard hose If possible re locate the machine before adding extensions Failure to do any of the items mentioned above could result in a higher installed density e The insulation must be installed at a minimum of 15kg m to ensure it achieves its declared thermal conductivity value e During manufacture the material quality is checked using typical blowing equipment and typical settings This ensures its capability of achieving the minimum density value These quality checks indicate that in a typical installation a range of 15kg m will be achievable e There are many possible influences on the installed density including type set up and condition of the
9. knaufinsulation co uk KINE2384MAN V1214 Cy recycle When you have finished with this brochure please recycle it Knauf Insulation Ltd PO Box 10 Stafford Road St Helens Merseyside WA10 3NS EA i DIDAN DOU WE OTe 100 recycled This brochure is printed on 100 recycled paper Customer Service Sales Technical Support Team Literature Tel 0844 800 0135 Tel 01744 766 666 Tel 08700 668 660 Fax 01744 612007 Email technical uk knaufinsulation com Fax 0870 400 5797 Email sales uk knaufinsulation com Email info uk knaufinsulation com www knaufinsulation co uk
10. mance 4 Installation Guide 6 Site Arrival Loft Survey Loft Preparation Blowing machine set up Example calculations initial checks Installation Example calculations progressive checks Verification and making good Saving energy Insulating buildings is the easiest and most cost effective way to save energy and reduce fuel bills Buildings account for 40 of our energy consumption A great deal of this energy is lost through the fabric of the building Insulation incorporated into floors walls and roofs makes a significant contribution to a building s long term energy performance Insulation is fast to install and performs for the life of a building with no need for ongoing maintenance In the drive to reduce carbon emissions regulators and designers are increasingly turning to enhanced levels of thermal insulation Insulating with Supafil Loft offers many benefits e Sustainability by using recycled raw materials and being recyclable at end of life e Non combustibility and A1 fire classification for enhanced safety e Sound absorption properties for protection from noise e High insulation efficiency for enhanced thermal comfort e Energy saving for reduced fuel bills e Fast installation reducing costs and increasing added value o Supafil Loft is an unbonded glass mineral wool insulation that s designed to be blown into pitched roofs from the inside of a house Supaftil Loft has opt
11. nsity 458 8kg Actual density 15 29kg m Volume 30m EXAMPLE As an example a loft area with 100m 10m x 10m Depth of insulation 500mm Target insulated volume Area x Depth 100m x 0 500m 50m If average measured depth using 4 separate measurements was 507mm Total loft volume 100m x 0 507m 50 7 m Adjustment for drifting and overblown fibre 1 8 m Total loft Volume 52 5 m If number of 15 5kg bags used 52 Total insulation weight 806 kg Installed Density 15 35 kg m Blown installation for open lofts step by step guide 6 Verify the final installed density e Monitor the number of bags installed as the installation progresses and verify the total used at the end of the installation e Re check the wool depth at 4 positions in the loft and correct the completed installation depth to achieve the correct minimum volume accounting for overblown or drifted areas e Calculate the wool weight insulation volume and the installed density Make good e Remove all equipment e Vacuum any spilled product or debris not contained in the loft area e Leave the site as it was found e Complete job project declaration form to confirm installation details KNAUFINSULATION its time to save energy Knauf Insulation PO Box 10 Stafford Road St Helens Merseyside WA10 3NS UK Tel 01744 766 666 Fax 01744 766 667 info uk knaufinsulation com www
12. ting blow rate e Blow material into a bag for 30 seconds e Weigh material taking into account weight of bag As an example if the actual net weight of material is 3 1kg Blow rate 6 2kg per minute net weight x 2 in order to calculate the weight which would be blown in 60 seconds 2 Calculating the volume of a test area As an example a typical volume may be 3 20m length x 3 00m width x 0 5m thickness 4 5m 3 Calculating the target installation time for the test area Target weight of blown material for density of 15kg m is as follows Density Weight 15kg m Target weight Target weight 15kg m x 4 5m Target weight 67 5kg Volume 4 5m Installation time to blow in 67 5kg at a blow rate of 6 2kg per minute is as follows Installation time Target weight Installation time 67 5kg Installation time 1Omins 53 secs Blow rate 6 2kg per minute 4 Calculating the installed density of the test area As an example if actual blow time for the test area was 11 min 22 secs Weight Blow rate x Installation time Weight 6 2kg m x 11 mins 22 secs Weight 70 4kg Actual density Weight Actual density 70 4kg Actual density 15 65kg m Volume ADN 5 Calculating the estimated installation time for the whole loft to achieve a density of 15 17kg m As an example the volume of a loft may be 10 00m length x 10 00m width x 0 50m thickness 50m Target weight of blown material for density of
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