Help! HOW do I put up Insulation: basic

[This2ShallPass]

Hello again Friends,

I have been following the garage door insulation posts for a few months. Finally ready to have someone come help me this weekend, and realized I still don't have a clue how to mount them, and how to get an ??? air space between the foil on each side?

So I'm using the R13 rigid insulation, which we'll cut to fit each garage door panel.

Y'all have suggested having foil/radiant barrier on each side of the insulation. But the foil clearly states that it will only work if there is an air space adjacent to the foil side.

The main issue where I live is going to be summer heat, which is why I like the idea of having radiant foil facing outwards, to reflect away the summer sun. Door already is a light color but might go with painting it white.

So can anyone spell it out for me, how to put up the panels, and how and where to put the foil?

Many, many thanks in advance!

T2

 

[Gerald O]

The only effective way to have a radiant barrier against outside heat for your garage door is for the outer door surface to be reflective, i.e.: white.

Just attach the insulation directly to the inside of the door. The reflective surface facing inside will still be effective for helping keep inside warmed air temperatures from escaping, a benefit in the heating season. The reflective side that is attached to the door will lose its radiant barrier property, but nothing you can do about that.