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Old 09-18-2020, 10:59 AM   #4
MAXUM
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Originally Posted by ishoot308 View Post
Max,

What I did at my place for floor insulation... I used small cans of spray foam around all pipe and other small floor cutouts first. I then installed fiberglass insulation. Covered all insulation with 1/4" luan. I used urethane caulking over all luan seams then screwed strapping over all the seams and sealant to ensure nothing could get through.

Its been under there for 12 years now and we get no mice. bugs or ants. Floor stays nice and warm in winter as well.

Dan
Dan

I had a similar thought in mind, when I re-did the house I also re-did the mess of an excuse for plumbing which I consolidated to a single that travels under the floor joists east to west. My thought was to use fiberglass bats and cover it with zip board taping the seams. Same thing I did for the exterior wall and roof sheathing. Thing I love about that stuff is it has that coating on the outside that essentially is better than house wrap already integrated. The goal being that if I have to gain access I can with it being screwed into place. Since I have all my plumbing consolidated I can box around that and insulate that as well.

My neighbor just had a new place built and they employed a similar method to insulate the floor as well which I was curious to see how they would do it.

I'll figure it out and start to experiment with it. I do like what you did. Since the luan is so thin have you had any problems with it warping on you? I was thinking the 3/8" green zip board, although heavy would not suffer from this.
I've had that stuff warp so bad it popped through screw heads! Guess using a pan washer would help with that under every screw head.
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