Insulating a metal garage - The HuntingPA.com Outdoor Community
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post #1 of 16 (permalink) Old 12-13-2012, 10:47 AM Thread Starter
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Insulating a metal garage

I have a metal garage like this.




I want to insulate it. I am going to use osb on the walls and put blown in insulation behind it. I had planned on making a drop ceiling from dry wall and putting insulation above that. Untill yesterday. I went into the garage and the roof was sweating. Now I don't know what I am going to do. I don't want to put something up there and have it get wet and ruined. Also I have to get rid of the moisture before all my stuff in there starts rusting. Anyone have any ideas?
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post #2 of 16 (permalink) Old 12-13-2012, 11:45 AM
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Re: Insulating a metal garage

wonder if foam board insulation would be better that situation...and I would put a vent in the gable end

Come and try to take my guns!.you might meet my precious metal collection!
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post #3 of 16 (permalink) Old 12-13-2012, 02:54 PM
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Re: Insulating a metal garage

I would go with the foam board idea as well, blown in insulation directly against the metal would be a bad idea... the vent will be a necessity if your insulating otherwise condensation will be a major issue for sure. This is the time of year when you would see it the worst as it is so cold in the am and with potential for nice sunny days to rapidly heat the building....I had issues in my house until I put some better ventilation in and that seemed to do the trick.
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post #4 of 16 (permalink) Old 12-27-2012, 01:59 PM
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Re: Insulating a metal garage

you might want to look into spray foam insulation. just watched a show yesterday that did this inside a house. there would be no chance of moisture build up so no rust
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post #5 of 16 (permalink) Old 12-28-2012, 08:57 PM Thread Starter
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Re: Insulating a metal garage

I got an estimate for the spray on insulation. It is expensive. $1250 for just the roof and $2500 for the roof and walls. I'm going to have them do the roof and walls.
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post #6 of 16 (permalink) Old 12-28-2012, 10:16 PM
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Re: Insulating a metal garage

When you apply that do you need additional insulation or will that do it....
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post #7 of 16 (permalink) Old 12-28-2012, 11:18 PM
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Re: Insulating a metal garage

That,s the major downfall from a steel building.They can rain inside when the sun is shinin outside.
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post #8 of 16 (permalink) Old 12-29-2012, 02:27 PM Thread Starter
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Re: Insulating a metal garage

Ron that is all it is getting. After the insulation is put on I am going to put osb on the walls.
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post #9 of 16 (permalink) Old 12-29-2012, 04:05 PM
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Re: Insulating a metal garage

There are kits to do spray insulation yourself. Will save a lot on the cost / labor mark up.

Is your position a short term gain - or a long term loss? Separate the issues.
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post #10 of 16 (permalink) Old 12-29-2012, 06:01 PM
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Re: Insulating a metal garage

All the kits I've priced out have been more than the local sprayers cost...plus then you would need to learn to use the equipment and make a mess of yourself. Spray foam is the best option a little on the pricey side but very very efficient.
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