Foil-Tec - Pitched Roof

  • Single
  • Double

Installation of Foil-Tec VCL Single for roof applications and additional insulation products should be in accordance with the manufacturers fixing instructions, certification and current good building practice.

Foil-Tec VCL is applied directly from the roll either vertically or horizontally depending on the roof height, pulled tight and stapled onto the rafters. The foil side of the material should face the adjacent air space. All overlaps and perimeters must be taped and sealed using YBS Foil Tape.

If there is no cavity present between the rafters, fix horizontal counter battens, minimum 25mm by 38mm are fixed to the rafter at 600mm centres. Battens must always be placed at the top and bottom of the roof and around perimeter of sky lights/windows.

The plasterboard is fixed to the battens in accordance with manufacturers fixing instructions.

foiltec_single_roof

Description (Foiltec Single with rafters at 400mm centres)U-Value
135mm PIR Between Rafters0.18 W/m²K
125mm PIR Between Rafters, 35mm PIR Under Rafters0.15 W/m²K
150mm PIR Between Rafters, 35mm PIR Under Rafters0.13 W/m²K
70mm PIR Between Rafters, SuperQuilt Over Rafters0.18 W/m²K
100mm PIR Between Rafters, SuperQuilt Over Rafters0.15 W/m²K
130mm PIR Between Rafters, SuperQuilt Over Rafters0.13 W/m²K
Description (Foiltec Single with rafters at 600mm centres)U-Value
135mm PIR Between Rafters0.18 W/m²K
125mm PIR Between Rafters, 25mm PIR Under Rafters0.15 W/m²K
150mm PIR Between Rafters, 30mm PIR Under Rafters0.13 W/m²K
65mm PIR Between Rafters, SuperQuilt Over Rafters0.18 W/m²K
95mm PIR Between Rafters, SuperQuilt Over Rafters0.15 W/m²K
120mm PIR Between Rafters, SuperQuilt Over Rafters0.13 W/m²K

Installation of Foil-Tec VCL Double for roof applications and additional insulation products should be in accordance with the manufacturers fixing instructions, certification and current good building practice.

Foil-Tec VCL is then applied directly from the roll either vertically or horizontally depending on the roof height, pulled tight and stapled onto the rafters. The foil sides of the material will be facing the cavities formed. All overlaps and perimeters must be taped and sealed using YBS Foil Tape.

Horizontal counter battens, minimum 25mm by 38mm are fixed to roof at 600mm centres. Battens must always be placed at the top and bottom of the roof and around perimeter of sky lights/windows.

The plasterboard is fixed to the battens in accordance with manufacturers fixing instructions.

foiltec_double_roof

Description (Foil-Tec Single with rafters at 400mm centres)U-Value
125mm PIR Between Rafters0.18 W/m²K
160mm PIR Between Rafters0.15 W/m²K
190mm PIR Between Rafters0.13 W/m²K
45mm PIR Between Rafters, SuperQuilt Over Rafters0.18 W/m²K
80mm PIR Between Rafters, SuperQuilt Over Rafters0.15 W/m²K
110mm PIR Between Rafters, SuperQuilt Over Rafters0.13 W/m²K
Description (Foil-Tec Single with rafters at 600mm centres)U-Value
120mm PIR Between Rafters0.18 W/m²K
150mm PIR Between Rafters0.15 W/m²K
205mm PIR Between Rafters0.13 W/m²K
45mm PIR Between Rafters, SuperQuilt Over Rafters0.18 W/m²K
75mm PIR Between Rafters, SuperQuilt Over Rafters0.15 W/m²K
100mm PIR Between Rafters, SuperQuilt Over Rafters0.13 W/m²K