SuperQuilt - Flat Roofing

  • Under Joist
  • Over Joist
  • Two Layer

Installation of SuperQuilt for under joist flat roof applications and additional insulation products should be in accordance with the manufacturers certificate, fixing instructions and current good building practice.

SuperQuilt should be overlapped at each joint by approx. 50mm and stapled onto the joists, the joints should be sealed using YBS Foil Tape. When SuperQuilt is cut to fit around openings or connections, gaps must be minimized and any exposed cut edges should be sealed with YBS Foil Tape to prevent condensation.

SuperQuilt should be cut equal to the width of the roof section plus 100mm. Installation should start from the external wall with SuperQuilt being unrolled perpendicular to the joists, after which it is fixed using staples, nails or YBS saddle clips.

SuperQuilt should be held in place using timber battens or by other means as shown, in such a way that there is a nominal 25mm air cavity above the product (if applicable) and a nominal 25mm air cavity below. To minimize the effect of thermal bridging cross battening is advised.

When installed below joists SuperQuilt will perform as a vapour barrier.

superquilt-flat-underjoist

superquilt-flat-underjoist

Description (rafters at 400mm centres) U-Value
SuperQuilt and 160mm Mineral Wool (0.040 W/mk)0.18 W/m²K
SuperQuilt and 210mm Mineral Wool (0.040 W/mk)0.15 W/m²K
SuperQuilt and 140mm Mineral Wool (0.033 W/mk)0.18 W/m²K
SuperQuilt and 180mm Mineral Wool (0.033 W/mk)0.15 W/m²K
SuperQuilt and 100mm PIR (0.022 W/mk)0.18 W/m²K
SuperQuilt and 135mm PIR (0.022 W/mk)0.15 W/m²K
SuperQuilt and 165mm PIR (0.022 W/mk) 0.13 W/m²k
Description (rafters at 600mm centres)U-Value
SuperQuilt and 150mm Mineral Wool (0.040 W/mk)0.18 W/m²K
SuperQuilt and 200mm Mineral Wool (0.040 W/mk)0.15 W/m²K
SuperQuilt and 125mm Mineral Wool (0.033 W/mk)0.18 W/m²K
SuperQuilt and 170mm Mineral Wool (0.033 W/mk)0.15 W/m²K
SuperQuilt and 90mm PIR (0.022 W/mk)0.18 W/m²K
SuperQuilt and 120mm PIR (0.022 W/mk)0.15 W/m²K
SuperQuilt and 145mm PIR (0.022 W/mk) 0.13 W/m²k
Description (rafters at 400mm centres)U-Value
SuperQuilt (2 Layer) and 50mm Mineral Wool (0.040 W/mk)0.18 W/m²K
SuperQuilt and 190mm Mineral Wool (0.040 W/mk)0.15 W/m²K
SuperQuilt and 120mm Mineral Wool (0.033 W/mk)0.18 W/m²K
SuperQuilt and 170mm Mineral Wool (0.033 W/mk)0.15 W/m²K
SuperQuilt and 90mm PIR (0.022 W/mk)0.18 W/m²K
SuperQuilt and 120mm PIR (0.022 W/mk)0.15 W/m²K
SuperQuilt and 150mm PIR (0.022 W/mk) 0.13 W/m²k
Description (rafters at 600mm centres) U-Value
SuperQuilt and 130mm Mineral Wool (0.040 W/mk)0.18 W/m²K
SuperQuilt and 175mm Mineral Wool (0.040 W/mk)0.15 W/m²K
SuperQuilt and 110mm Mineral Wool (0.033 W/mk)0.18 W/m²K
SuperQuilt and 150mm Mineral Wool (0.033 W/mk)0.15 W/m²K
SuperQuilt and 80mm PIR (0.022 W/mk)0.18 W/m²K
SuperQuilt and 110mm PIR (0.022 W/mk)0.15 W/m²K
SuperQuilt and 135mm PIR (0.022 W/mk) 0.13 W/m²k

Installation of SuperQuilt for over joist flat roof applications and additional insulation products should be in accordance with the manufacturers certificate, fixing instructions and current good building practice.

SuperQuilt should be overlapped at each joint by approx. 50mm and stapled onto the joists, the joints should be sealed using YBS Foil Tape. When SuperQuilt is cut to fit around openings or connections, gaps must be minimized and any exposed cut edges should be sealed with YBS Foil Tape to prevent condensation.

SuperQuilt should be cut equal to the width if the roof section plus 100mm. Installation should start from the external wall with SuperQuilt being unrolled perpendicular to the rafters, after which it is fixed using staples or nails or with saddle clips.

SuperQuilt should be held in place using timber battens or by other means as shown, in such a way that there is a nominal 25mm air cavity above the product (if applicable) and a nominal 25mm air cavity below. To minimize the effect of thermal bridging cross battening is advised.

Additional insulation should be installed above the SuperQuilt.

When installed below joists SuperQuilt will perform as a vapour barrier.

superquilt-flat-overjoist

Description (rafters at 400mm centres)U-Value
SuperQuilt and 65mm PIR (0.022 W/mk) 0.18 W/m²k
SuperQuilt and 90mm PIR (0.022 W/mk)0.15 W/m²K
SuperQuilt and 105mm PIR (0.022 W/mk)0.13 W/m²k
SuperQuilt and 85mm XPS (0.029 W/mk)0.18 W/m²k
SuperQuilt and 120mm XPS (0.029 W/mk)0.15 W/m²k
SuperQuilt and 140mm XPS (0.029 W/mk)0.13 W/m²K
Description (rafters at 600mm centres)U-Value
SuperQuilt and 65mm PIR (0.022 W/mk)0.18 W/m²K
SuperQuilt and 90mm PIR (0.022 W/mk)0.15 W/m²K
SuperQuilt and 105mm PIR (0.022 W/mk)0.13 W/m²k
SuperQuilt and 85mm XPS (0.029 W/mk)0.18 W/m²k
SuperQuilt and 120mm XPS (0.029 W/mk)0.15 W/m²K
SuperQuilt and 135mm XPS (0.029 W/mk)0.13 W/m²K

Installation of SuperQuilt for over and under rafter flat roof applications with additional insulation should be in accordance with the manufacturers certificate, fixing instructions and current good building practice.

SuperQuilt should be overlapped at each joint by approx. 50mm and stapled onto the rafters, the joints should be sealed using YBS Foil Tape. When SuperQuilt is cut to fit around openings or connections, gaps must be minimized and any exposed cut edges should be sealed with YBS Foil Tape to prevent condensation.

SuperQuilt should be cut equal to the width of the roof section plus 100mm. Installation should start from the external wall with SuperQuilt being unrolled perpendicular to the joists, after which it is fixed using staples, nails or YBS saddle clips.

SuperQuilt should be held in place using timber battens or by other means as shown, in such a way that there is a nominal 25mm air cavity above the product (if applicable) and a nominal 25mm air cavity below. To minimize the effect of thermal bridging cross battening is advised.

When installed below joists SuperQuilt will perform as a vapour barrier.

superquilt-flat-2-layer

Description (rafters at 400mm centres)U-Value
SuperQuilt (2 Layer) and 50mm Mineral Wool (0.040 W/mk)0.18 W/m²k
SuperQuilt (2 Layer) and 100mm Mineral Wool (0.040 W/mk)0.15 W/m²K
SuperQuilt (2 Layer) and 40mm Mineral Wool (0.033 W/mk)0.18 W/m²K
SuperQuilt and 30mm PIR (0.022 W/mk)0.18 W/m²k
SuperQuilt and 65mm PIR (0.022 W/mk)0.15 W/m²K
SuperQuilt and 75mm PIR (0.022 W/mk)0.13 W/m²K
Description (rafters at 600mm centres)U-Value
SuperQuilt (2 Layer) and 50mm Mineral Wool (0.040 W/mk)0.18 W/m²K
SuperQuilt (2 Layer) and 90mm Mineral Wool (0.040 W/mk)0.15 W/m²K
SuperQuilt (2 Layer) and 40mm Mineral Wool (0.033 W/mk)0.18 W/m²K
SuperQuilt and 25mm PIR (0.022 W/mk)0.18 W/m²k
SuperQuilt and 55mm PIR (0.022 W/mk)0.15 W/m²K
SuperQuilt and 65mm PIR (0.022 W/mk)0.13 W/m²K