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CrealCritter
Sustainability Master
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How big is that door? How often will you be opening and closing it?
I would worry that insulating it would be adding too much weight.
It's 7'x16' I will not be opening and closing it often. I thought about taking it down and standing up a wall. But decided I want to keep it. It's very handy for our multi purpose room. I have 3 screws across the top, to hold it closed. My wife and I installed new weather strip on the outside and also replaced the sill at the bottom of the door. Now it's time for insulation...
Your right... Whatever I use to insulate the inside can't add too much weight. Or the springs will not hold the door open when it's opened up. The biggest problem is the sides that I have pictured in the first post. They leak outside air like crazy. It's because of the way in which the fiberglass panels were attached to the aluminum U frame. It's just 2 tabs that hold the horizontal fiberglass panel in place, there are 4 panels used to make up the width of the door.
if I go outside and with the lights in in the cave you can see light coming through up and down both sides of the door from the U channel. This light mean a air gap, for air to pass through.
The next problem is the fiberglass panels are thin so they basically remain at the temperature of the outside air. Hot in the summer and cold in the winter.
I'm kind of left scratching my head on what to do. I want a functional garage door but the way the horizontal fiberglass panels are shaped, prohibit the use of fitting rigid foam board to fill the cavity the way most steel garage door panels are shaped.
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