Sisalation® Foam Cell Multipurpose Insulation, Queensland
A metal roof in Queensland does two things you don't want. In the day it pushes heat into the room. On a humid night it sweats underneath, and the drips land on your ceiling.
Foam Cell stops both. The foil side bounces the heat back. The foam side catches the sweat. One roll covers 30m² and is thin enough to go under the sheets.
To order: select Queensland, enter the number of rolls and add to cart. Roof area ÷ 27 (30m² per roll less the laps), rounded up. Queensland delivery only; in other states order Sisalation® Foam Cell
Product information
How does it work?
The foil face turns radiant heat back, but only into a still air space: it needs at least 20mm of air in front of it to reflect, so under a roof it goes on the battens with the reflective face down into the cavity, never pressed against a ceiling. The XPE foam core behind it is a thermal break that keeps the underside of the steel closer to cavity temperature, so it's slower to hit dew point, and it holds any condensate that does form clear of the ceiling. The same roll does a wall, a floor or a shed lining.
How is it laid?
Light enough for one person. Roll it out across the battens from the gutter up, reflective face down, with a slight sag between battens so condensate runs to the eave rather than pooling. Lap each run over the one below at the 150mm flap, lapping away from the weather, and staple or tape the joins. Lay the roof sheets the same day; the foil is not a weatherproof roof on its own. Install to AS/NZS 4200.2.
What are the specs?
| Material R-value |
Thickness |
Width |
Flap |
Length |
Roll |
| R0.25 |
8.4mm |
1350mm |
150mm |
22.25m |
30m², 18kg |
Fletcher Insulation Sisalation® Foam Cell Multipurpose. Class 1 vapour barrier to AS/NZS 4200.1 and Group 2 fire rating to AS 5637.1 (Flammability Index 5 or less), so it can be left exposed as a wall or ceiling lining in a shed or garage. The material R-value is the foil and foam alone; the installed value depends on the air spaces either side and is set out in Fletcher's tables.
How long does delivery take?
Ships from the Queensland depot in approximately 3 to 7 working days.
