My son may be pulling up carpet to lay down 3/4 pre finished hardwood floor. He has plywood (not osb) under the carpet.
Any idea what a common leveling agent is , if he finds any low spots?
A rear addition provides a small-scale example of how to frame efficiently.
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Replies
Henry's 547 patch and skimcoat
Their instructions say "do not nail thru it"
Not only can you not nail through it, but if the sunbfloor flexes just a little the levelling compound will fracture. Then you have small bits of cement under the wood floor and it sounds like popcorn when you walk on it. If the dips are minor, a couple of layers of 30# felt paper work well. You can cut or tear the paper into odd sizes to feather out the patch."Put your creed in your deed." Emerson
"When asked if you can do something, tell'em "Why certainly I can", then get busy and find a way to do it." T. Roosevelt
you're right, I wasn't paying attention to the fact that it would be under nail down floor.
I would correct the underlying problem, if there is access though a basement or crawl space. If the area is small and isolated then you could use cedar shims under the hard wood.
Mark
My brother-in-law was told to use smooth-surfaced roll roofing by his hardwood floor supplier. He did and it worked great.
I had used a leveling compound before my BIL told me about the roll roofing. I don't recall the instructions saying anything about nailing through it but I did and the floor still doesn't squeak after 5 years.
I have one room left to go and will try the roll roofing next time around.
Don't get carried away with getting the floor level.
If you are running your hardwood parallel to the joists, I would not even bother to level it unless there are very big dips.
If you are running your hardwood perpendiclar to your joists, just make sure there are no big dips in between 3 or 4 adjacent joists.
Newspaper works fine.