Air-cell is an exciting new foil product that not only delivers exceptional performance
by providing a more complete vapour barrier, but is also a heat conductional and
radiant barrier all in one.
So what is Air-cell?
Air-cell is a twin layer aluminum foil separated by a 7mm pocket of air - in fact
it looks a bit like foil ‘bubble wrap’. Because the layers of foil are separated,
this significantly reduces the conduction of energy through it. In this way it can
be compared to the way double glazed windows works. It is non-allergenic, fibre-free,
tough and resistant to rodents and insects. It also has an excellent fire rating.
How does it work?
Conventional bulk fill underfloor insulation involves inserting rigid products between
joists under floorboards. Because it involves ‘stuffing’ the gaps, there isn’t a
continuous barrier so cold air can still get in through gaps in the joists. Air-cell
is completely different and possibly the easiest way to undertand how Air-cell works
is to think of it as a blanket which has been stretched under your home with all
the joints overlapped. This blanket seals your floor off from the rising cold, damp
air whilst at the same time saving you up to 12% on your heating bills by reflecting
back and retaining the warm air inside your home.
Cold air and moisture gets in through gaps in the floor boards
Cold air forces the warm air up
No underfloor insulation
There is a still air cavity between the foil and the floor. Heat loss through floor is reflected back.