[TheForge] re: rFoil vs Fibreglass Insulation

[Gladish Family]

It works great for what it's for.
Specifically designed to be on the outside surface of an air cavity, it
insulates (bubbles) and reflects heat back into the structure. If it doesn't
have an air space on the inside, it's just 1/4" of insulation. In the right
application, it claims up to R14 or so.
We're used to using insulation just like a blanket on a bed, but this is
designed to work differently. Kind of like those blankets (Shake and Bake)
that they give forest firefighters. You make a little tent out of them and
you may survive.
Andy G.

> The bubble wrap works but not as well as fiberglass. It works well as a
> radiant barrier and as a moisture barrier but it is not very good as
> insulation. The whole idea of most forms of house insulation is to
> create a dead air space that actually provides the insulation. So when
> you have 4 inches of dead air space from normal fiberglass insulation
> vs 1/4" of dead air space in the bubble wrap  the fiberglass will win.
> if you need a radiant barrier as well as insulation you can buy foil
> backed fiberglass .