Reply by therealSteveN

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Posted on Insulating detached garage shop

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7702 posts in 1661 days

#1 posted 07-16-2019 07:19 PM

That said, my first choice would be spray foam applied directly to the bottom of the roof. Its such a small job you may have trouble getting it done. There are place that will rent a foam machine. Factor the coast against all the carpentry, insulation, soffits and time.

- Robert

I agree spray foam is going to be the most economical answer. A person can buy 2 tank mix systems that blow through a $50.00 handset. Not something you are going to go into business with, but for that 40 minute job, more than sufficient. Enough foam to do that is 600 bux, possibly less with the wonders of the innerweb. Add a few bux and you can do the walls. The wonderous thing they are finding about foam it just plain seals out everything, moisture as well as temp. So it’s fine to spray it shut, no worries about moisture causing mold from no air movement, there is none of either. For that reason I would replace the door, spray it closed, and just put in electrical lighting. I agree, not much for mood, but for the lowest cost to get there, it will work.

Also can’t tell from the pic, and didn’t see anything written. What is the floor? Dirt = BAD. Concrete will help cool in the heat, but totally the opposite in the cold, but hard on your legs, and back. But if it’s concrete you can always put foam mats in front of your standing spots. Enough concrete and you can keep the place closed in the Summer, and stay cool enough with a few well placed fans, ceiling are best. In the Winter, you need a heat source, and probably a vented one if you foam it closed.

My concern is all that glass. I’m betting it’s all single pane, leaks like a sieve construction. With that glass in the peak it will be like keeping the main door open all the time, heat, and or cooling are gonna roll right out. Worst of that is it’s a great source of natural light. What a dogfight.

-- Think safe, be safe

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