Fireproof Envirolay Premier Roofers’ 1m x 30m Your Roof HR ...
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1 2 3 4 5 EN 13859-1 2012 z Fire Resistant z Exova Tested z BS EN ISO 11925-2:2010 z DD CEN/TS 1187:2012 Test 4 z BS 5534:2014 z bre Tested Test No. P101133- 1000 Issue: 2 Product Code GSP06 Batch No. 000111 Fig 1: Envirolay Premier is suitable for use in all 5 UK wind pressure zones Fig. 2: Overlap, batten gauge, sag and fixing of Envirolay Premier Roofers’ HR Underlay Fixing Instructions: Installation must conform to British Standards - BS 5534:2014 Code of Practice for Slating & Tiling of Roofs, BS 8000-6:2013 Code of Practice for Workmanship on Building Sites for Slating & Tiling of Roofs & Cladding. HR Underlays must be vented in accordance with BS 5250:2011. A quick guide to BS 5534 and roofing underlays Under the new British Standards, many brands of underlay currently used will no longer be suitable to fit on UK roofs under the new standards. Envirolay Premier has been fully tested and exceeds the requirements of BS 5534 so you can rest assured you are using an underlay that is fit for purpose. Roofing underlays reduce the wind load on the roof tiles by taking some of the wind load. Figure 2 above illustrates how the underlay should be fitted so that it is not stretched to touch the underside of the roof tiles when under pressure from wind. If ballooning or streching does occur, the full wind load may be transferred to the roof tiles. Underlay laps must be sealed to avoid differential wind pressure. The current Code of Practice recommends the use of an additional timber batten installed over the horizontal lap between underlay courses as a preventative measure, although many roofers feel this is a trip hazard. The European Standard does not cover this issue so even underlays that are CE marked may not comply with the new Code of Practice. Under the new Code of Practice there is a single test to measure the wind uplift resistance for underlays. All testing bodies will now follow this test. Envirolay Premier Roofers’ HR Underlay complies with and exceeds the requirements of the test. Green Sustainable Products Company Ltd 10 Park Plaza, Battlefield Enterprise Park, Shrewsbury, Shropshire SY1 3AF [email protected] t: 0845 2697137 Associate Member 9234 1m x 30m Envirolay Premier Roofers’ HR Underlay Fireproof Your Roof Technical Specifications BS5534 See website for further information - www.greensustainableproductsco.com z For use in all 1-5 Zonal Areas z With or without the need of Duo Tape z Suitable for most types of Roof structures z Cold Roof z Warm Roof z Solid Roof ( Scotland ) 1m x 30m Envirolay Premier Roofers’ HR Underlay Fireproof Your Roof Surface Finish Top side White / Underside Aluminium Foil Determination of Watertightness (Class W1) Performed & determined by bre to test standard /method BS EN 13859-1 & BS EN 1928 Mean resistance to tearing (nail-shank ) - Machine direction (190 N) Mean resistance to tearing (Nail - shank ) - Cross direction (340 N) Performed & determined by bre to test standard/method BS EN 13859-1 & BS EN 12310-1 Mean Water Vapour Permeability in g/m²/day 0.32 Mean Water Resistance in MNs/g 298 Mean Water Vapour Flow Rate ( g ) in Kg/m²/s 3.76E-09 Mean Water - Vapour Diffusion - Equivalent Air Layer Thickness ( S d ) in m 59.7 Table 1: Performed & determined by bre to test standard BS EN ISO 12572:2001 condition ‘c’ Geographical wind zone Underlay Name 345mm batten gauge Battened lap 250mm batten gauge Battened lap 345mm batten gauge Taped lap Green Sustainable Products Envirolay Zones 1 to 5 Zones 1 to 5 Zones 1 to 5 Summary of test results for wind uplift resistance of Envirolay underlay to BS 5534 Annex A Table 2 : Zones of applicability of the Green Sustainable Products Envirolay underlay according to BS5534:2014 clause A.8 Tape may be used in lieu of the extra batten Slight sag in membrane allows moisture to drain in the middle of the rafter centres and prevents water tracking back through the fixings. Clout nails used as opposed toes, fixings located under laps.
Transcript of Fireproof Envirolay Premier Roofers’ 1m x 30m Your Roof HR ...
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EN 13859-12012
z Fire Resistant z Exova Tested z BS EN ISO 11925-2:2010 z DD CEN/TS 1187:2012 Test 4 z BS 5534:2014 z bre Tested
Test No. P101133-1000 Issue: 2
Product Code GSP06
Batch No.
000111
Fig 1: Envirolay Premier is suitable for use in all 5 UK wind pressure zones
Fig. 2: Overlap, batten gauge, sag and fixing of Envirolay Premier Roofers’ HR Underlay
Fixing Instructions:Installation must conform to British Standards - BS 5534:2014 Code of Practice for Slating & Tiling of Roofs, BS 8000-6:2013 Code of Practice for Workmanship on Building Sites for Slating & Tiling of Roofs & Cladding. HR Underlays must be vented in accordance with BS 5250:2011.
A quick guide to BS 5534 and roofing underlaysUnder the new British Standards, many brands of underlay currently used will no longer be suitable to fit on UK roofs under the new standards. Envirolay Premier has been fully tested and exceeds the requirements of BS 5534 so you can rest assured you are using an underlay that is fit for purpose.
Roofing underlays reduce the wind load on the roof tiles by taking some of the wind load. Figure 2 above illustrates how the underlay should be fitted so that it is not stretched to touch the underside of the roof tiles when under pressure from wind. If ballooning or streching does occur, the full wind load may be transferred to the roof tiles. Underlay laps must be sealed to avoid differential wind pressure. The current Code of Practice recommends the use of an additional timber batten installed over the horizontal lap between underlay courses as a preventative measure, although many roofers feel this is a trip hazard. The European Standard does not cover this issue so even underlays that are CE marked may not comply with the new Code of Practice.
Under the new Code of Practice there is a single test to measure the wind uplift resistance for underlays. All testing bodies will now follow this test. Envirolay Premier Roofers’ HR Underlay complies with and exceeds the requirements of the test.
Green Sustainable Products Company Ltd10 Park Plaza, Battlefield Enterprise Park, Shrewsbury, Shropshire SY1 [email protected]: 0845 2697137 Associate Member 9234
1m x 30mEnvirolay Premier Roofers’ HR Underlay
FireproofYour Roof
Technical Specifications
Version 2 | December 2013
How to promote your BSI certification.
BS5534
See website for further information - www.greensustainableproductsco.com
z For use in all 1-5 Zonal Areas z With or without the need of Duo Tape z Suitable for most types of Roof structures z Cold Roof z Warm Roof z Solid Roof ( Scotland )
1m x 30mEnvirolay Premier Roofers’ HR Underlay
FireproofYour Roof
Surface Finish Top side White / Underside Aluminium Foil
Determination of Watertightness (Class W1)
Performed & determined by bre to test standard /method BS EN 13859-1 & BS EN 1928
Mean resistance to tearing (nail-shank ) - Machine direction (190 N)
Mean resistance to tearing (Nail - shank ) - Cross direction (340 N)
Performed & determined by bre to test standard/method BS EN 13859-1 & BS EN 12310-1
Mean Water Vapour Permeability in g/m²/day 0.32
Mean Water Resistance in MNs/g 298
Mean Water Vapour Flow Rate ( g ) in Kg/m²/s 3.76E-09
Mean Water - Vapour Diffusion - Equivalent Air Layer Thickness ( S d ) in m 59.7
Table 1: Performed & determined by bre to test standard BS EN ISO 12572:2001 condition ‘c’
Geographical wind zone
Underlay Name 345mm batten gaugeBattened lap
250mm batten gaugeBattened lap
345mm batten gaugeTaped lap
Green SustainableProducts Envirolay Zones 1 to 5 Zones 1 to 5 Zones 1 to 5
Summary of test results for wind uplift resistance ofEnvirolay underlay to BS 5534 Annex A
Table 2 : Zones of applicability of the Green Sustainable Products Envirolay underlay according to BS5534:2014 clause A.8Tape may be used in lieu of the extra batten
Slight sag in membrane allows moisture to drain in the middle of the rafter centres and prevents water tracking back through the fixings.
Clout nails used as opposed toes, fixings located under laps.
