Insulation kits for garage doors


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Old 08-26-21, 11:24 AM
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Insulation kits for garage doors

Hello there!

We've got a large garage with two doors that are acting like heat sinks. Actually hard to keep your hand on during the day. There's a living space above the garage and I"m trying to do what I can to dampen some of the radiation occurring in the garage space.

I Googled and found some kits where you adhere tabs to the door panels then push bats through to secure them to the door but I can find no such kit either in Lowe's or online. I think adhering rigid foam panels would add too much weight to the door for a future door opener to handle. What can I use to insulate these doors?

Any suggestions or insight would be most welcome. Thanks for your time!
 
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Old 08-26-21, 11:54 AM
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I would glue rigid foam panels to the inside of the door. You may need to adjust your current springs or install heavier springs to offset the weight.
 
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Old 08-26-21, 03:36 PM
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I insulated my doors a couple houses ago that were South facing.

Cut 2" thick (If I remember right) white extruded foam panels, flexed them and fit them in the channels (vertically) and they held in place.

But honestly, they really didn't make a huge difference in the garage temps, it just slowed down the heat transfer in and out!
 
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Old 08-27-21, 06:43 AM
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In my opinion, insulated garage doors are a waste of money. They are not designed to be living space although many people use them as such. In order to cool a hot garage you need to circulate the air. Unlike a home, air in a garage has no efficient way of circulating or exchange.
On the other hand, in winter an insulated bay door does indeed help if you need to use the area for activity. But in most cases winter use in a garage is very limited.

 
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Old 08-27-21, 06:57 PM
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Well, like I said, I don't expect it in and of itself to solve any issue. It's just a step in the right direction. Direct sun on a single layer of metal radiating into the space can't be great for controllable temps. I'm also working on circulation(passive and forced will be tried) and at some point in time, will play with some other things.

My goal isn't "great", just "better".
 
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Old 08-28-21, 04:42 AM
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In my opinion, insulated garage doors are a waste of money.
Well, the primary benefit is in the winter. Prior insulated garage and door would never get below freezing with just the little heat loss from the house.

Current uninsulated garage and door goes below freezing so every fall I have to remove everything that would be ruined.

I am considering having it insulated, would at least give me the option to work out there with just a small heater to warm the work area up!

As noted, no summer benefit, it cant resolve an unconditioned space so if that is primary goal you are wasting time and money!
 
 

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