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Increase R Value of Floor in workshop.
Mot
Member Posts: 1
Hi,
I have a 12' x 18' workshop out back that I want to insulate so I can work out there year round. (Mid-Atlantic region). The Shop sits on a rock base with 4"x4"s "foundation" and 3/4" Plywood Rough Flooring.
Under the floor I have no access to (unless I remove the current floor) so I'm looking for how best I can add padding and perhaps vinyl over for much better insulation. Should I be looking at a reflective material on one side or perhaps both? Or just foam products?
I'm trying to keep the additional stackup as low as possible and will probably be using 5mm on the finished floor so if I can keep the stackup to around 1/2" I should be good...
Thanks!
I have a 12' x 18' workshop out back that I want to insulate so I can work out there year round. (Mid-Atlantic region). The Shop sits on a rock base with 4"x4"s "foundation" and 3/4" Plywood Rough Flooring.
Under the floor I have no access to (unless I remove the current floor) so I'm looking for how best I can add padding and perhaps vinyl over for much better insulation. Should I be looking at a reflective material on one side or perhaps both? Or just foam products?
I'm trying to keep the additional stackup as low as possible and will probably be using 5mm on the finished floor so if I can keep the stackup to around 1/2" I should be good...
Thanks!
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Comments
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Insulation is all about thickness or, in the case of infrared radiation, reflectivity. If all you have to play with is half an inch, and no infrared ... not much you can do. You could put a half inch layer of rigid foam in there, I suppose... but it isn't going to do much.Br. Jamie, osb
Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England0 -
Mot said:Hi, I have a 12' x 18' workshop out back that I want to insulate so I can work out there year round. (Mid-Atlantic region). The Shop sits on a rock base with 4"x4"s "foundation" and 3/4" Plywood Rough Flooring. Under the floor I have no access to (unless I remove the current floor) so I'm looking for how best I can add padding and perhaps vinyl over for much better insulation. Should I be looking at a reflective material on one side or perhaps both? Or just foam products? I'm trying to keep the additional stackup as low as possible and will probably be using 5mm on the finished floor so if I can keep the stackup to around 1/2" I should be good... Thanks!
any thermal break will help, even 1/2 foam boardBob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0 -
So as I understand you have 4x4s sitting on rock? call your local foam outfit and have them drill and plug your floor and put in 3 1/2 " of polyiso which will give you a minimum of R21 and no loss of headroom. The foam will also seal all drafts.
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Just pull the sub floor and spray foam the entire underside.0
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