SuperQuilt - Pitch Roof

  • Under Rafter
  • Over/Under Rafter
  • Two Layer

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

SuperQuilt is applied directly from the roll either vertically or horizontally depending on the rafter height, pulled tight and stapled onto the rafters at minimum 300mm centres.

SuperQuilt should be overlapped at each joint by approx. 50mm and stapled onto the rafters, the joints should be sealed using YBS Foil Tape. Additionally, at the eaves SuperQuilt is cut around the rafters and sealed to the Cavity wall insulation or wall plate.

Fix 25mm by 38mm battens at right angel to rafters. Battens must always be fixed around the perimeter of windows.

The plasterboard is fixed over the SuperQuilt and onto the battens in the usual manner.

Under Rafter Insulation Technical Drawing

Description (rafters at 400mm centres)U-Value
SuperQuilt and 75mm PIR (0.022 W/mK)0.18 W/m²K
SuperQuilt and 130mm Glasswool (0.040 W/mK)0.18 W/m²K
SuperQuilt and 110mm PIR (0.022 W/mK)0.15 W/m²K
SuperQuilt and 180mm Glasswool (0.040 W/mK)0.15 W/m²K
SuperQuilt and 140mm PIR (0.022 W/mk)0.13 W/m²K
Description (rafters at 600mm centres)U-Value
SuperQuilt and 70mm PIR (0.022 W/mK)0.18 W/m²K
SuperQuilt and 120mm Glasswool (0.040 W/mK)0.18 W/m²K
SuperQuilt and 95mm PIR (0.022 W/mK)0.15 W/m²K
SuperQuilt and 165mm Glasswool (0.040 W/mK)0.15 W/m²K
SuperQuilt and 125mm PIR (0.022 W/mk)0.13 W/m²K

In accordance with BDA Agrèment certification

SuperQuilt should be installed under rafter as shown in the Under Rafter tab . BreatherQuilt should then be installed over rafter.

Installation of BreatherQuilt for pitched roof applications and additional insulation products should be in accordance with the manufacturer’s certificate, fixing instructions and current good building practice.

Start at the bottom of the roof by rolling BreatherQuilt across the rafters and staple in to place, additional rolls should be butt jointed and sealed using waterproof tape. Tape a line of double sided tape along the top edge of the material.

Install the next layer of BreatherQuilt overlapping the material by 75mm, staple as before and then secure with the double sided tape, additional rolls should be butt jointed and sealed using waterproof tape

BreatherQuilt can be cut with craft knife or a sharp pair of scissors. Staple at regular intervals using minimum 14mm stainless steel or galvanized staples are recommended. No protective clothing/handling required.

Parallel battens, recommended 38mm by 50mm are fixed to the rafters. Battens must always be fixed around the perimeter of windows.

A breather membrane is fitted in accordance with the manufacturers fixing details above the battens before tile battens and tiles. A vapour control layer should be fitted behind plasterboard to prevent any risk of interstitial condensation.

 

Under Rafter Over Rafter Pitched Roof

Description (rafters at 400mm centres)U-Value
SuperQuilt/40mm PIR (0.022 W/mk)/BreatherQuilt (Draped)0.18 W/m²K
SuperQuilt/60mm Mineral Wool (0.035W/mk)/BreatherQuilt (Draped)0.18 W/m²K
SuperQuilt/100mm PIR (0.022 W/mk)/BreatherQuilt (Draped)0.13 W/m²K
SuperQuilt/150mm Mineral Wool (0.035W/mk)/BreatherQuilt (Draped)0.13 W/m²K
Description (rafters at 600mm centres)U-Value
SuperQuilt/40mm PIR (0.022 W/mk)/BreatherQuilt (Draped)0.18 W/m²K
SuperQuilt/60mm Mineral Wool (0.035W/mk)/BreatherQuilt (Draped)0.18 W/m²K
SuperQuilt/100mm PIR (0.022 W/mk)/BreatherQuilt (Draped)0.18 W/m²
SuperQuilt/150mm Mineral Wool (0.035W/mk)/BreatherQuilt (Draped)0.18 W/m²K

In accordance with BDA Agrèment certification

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

First Layer- Recessed between the rafters:

1. SuperQuilt is stapled to the first rafter.
2. SuperQuilt is recessed into the rafter void 38mm and fixed with staples or with battens.
3. The material is then fixed to opposite rafter as per instruction 2.
4. SuperQuilt is then wrapped around the rafter and the procedure starts again.

Once all the SuperQuilt is fitted, all joints should be taped using YBS Foil Tape.

Second Layer – Across rafter installation:

SuperQuilt is applied directly from the roll either vertically or horizontally depending on the rafter height, pulled tight and stapled onto the rafters at minimum 300mm centres.

SuperQuilt should be overlapped at each joint by approx. 50mm and stapled onto the rafters, the joints should be sealed using YBS Foil Tape. Additionally, at the eaves SuperQuilt is cut around the rafters and sealed to the Cavity wall insulation or wall plate.

When installing two layers of SuperQuilt a 38mm air space should be maintained between layers at all times.

superquilt_two_layer
superquilt_two_layer_side

Description (rafters at 400mm centres)U-Value
SuperQuilt (2 layers) with 40mm Insulated Plasterboard (XPS) (1.070 m²k/w)0.18 W/m²K
SuperQuilt (2 layers) and 50mm PIR (0.022 W/mK)0.15 W/m²K
SuperQuilt (2 layers) and 85mm Glasswool (0.044 W/mK)0.15 W/m²K
SuperQuilt (2 layers) and 57.5mm Insulated Plasterboard (PIR) (2.2 m²k/w)0.15 W/m²K
SuperQuilt and 140mm PIR (0.022 W/mk)0.13 W/m²K
Description (rafters at 600mm centres)U-Value
SuperQuilt (2 layers) with 40mm Insulated Plasterboard (XPS) (1.070 m²k/w)0.18 W/m²K
SuperQuilt (2 layers) and 45mm PIR (0.022 W/mK)0.15 W/m²K
SuperQuilt (2 layers) and 75mm Glasswool (0.044 W/mK)0.15 W/m²K
SuperQuilt (2 layers) and 57.5mm Insulated Plasterboard (PIR) (2.2 m²k/w)0.15 W/m²K
SuperQuilt and 125mm PIR (0.022 W/mk)0.13 W/m²K

In accordance with BDA Agrèment certification