insulating garage doors

[Andy Pogue]

Has anyone added styrofoam to insulate garage doors? If so, did you use foil backed? How did you secure it?
Any help appreciated

[David Hostetler]

While mine are insulated with Reflectix, I helped a friend use foil backed foam board for his. We used Liquid Nails for Projects on it, been holding up for 8 years now no problems.

[Bruce Page]

I mounted 1” Styrofoam to my old garage doors using Liquid Nails. The LN was still holding strong when I changed out the doors several years later.
The 1” Styrofoam helped some, but not near as much as factory insulated doors.

[alex grams]

I used radiant barrier that was typically designed for attic spaces.

file:///C:/Documents%20and%20Setting...0DP%20FMEA.DOC

I just used aluminum foil tape, which has held up well for 2 years now. I am still tempted to put a layer of foam on it, though I really don't know how much more that will help. My problem was direct western exposure to the sun from about 2-7 in the summer, so radiant heat was a big deal for me.

I did also put roll out pink insulation in the attic above my garage, but still debating on looking at spray in foam insulation for my 2 walls.

[Robert Parrish]

Both of my doors are insulated with Reflectix and here in Florida it make a big difference.

[Jim Finn]

I have insulated the "garage" door in my workshop here in hot West Texas. Works very well. I used a double layer of 3/4" styrofoam that I bought at Home Depot. (48" x 96" pieces). I cut them to fit and bent them just enough to snap into place on the door between the stiffeners on the door. No tape or glue and 100% removeable. I have also done this for a friend and there I used some shop made slats (1/2" x 2") to help hold the foam in place.

[Don Bullock]

I was surprised how little it cost me to add factory insulation to my door when I bought it last year.

[chris beserra]

Foil backing is a great radiant barrier and the foam is great for r-value, covering both winter/summer needs. Foil tape works great and lasts forever if applied over a clean surface.

[Greg Crawford]

Like Jim did.

[Mark Grotenhuis]

Leaving foam exposed on the inside of the door is a fire hazard. Code requires it to be covered with some sort of fire rated material. Most insulated doors use a sheet of aluminum to cover it. My father has had exposed foam on the inside of his garage door for decades and never had a problem ... but just so you guys know; it wont pass an inspection.

[Michael Roland]

I was surprised how little it cost me to add factory insulation to my door when I bought it last year.

+1 - I replaced my old doors with new doors that have the insulation sandwiched between and inner and outer layer of steel. The inner layer protects the insulation from getting damaged.

[chet jamio]

I have insulated the "garage" door in my workshop here in hot West Texas. Works very well. I used a double layer of 3/4" styrofoam that I bought at Home Depot. (48" x 96" pieces). I cut them to fit and bent them just enough to snap into place on the door between the stiffeners on the door. No tape or glue and 100% removeable. I have also done this for a friend and there I used some shop made slats (1/2" x 2") to help hold the foam in place.

I did this exact setup. I used the table saw to cut the foam. That worked very well. Also, I used a broom handle help bow the pieces as I snapped them into place. Lay the handle horizontal and bend the foam over it and into the door channels. Then pull out the handle and the foam snaps in.