Level Subfloor With Roofing Felt

I was going to use roofing felt to even it out and then brad nail down luan over this.

Level subfloor with roofing felt.

The purpose of these membranes is to control dust pentration more important when subfloors were boards rather than plywood to create a slip plane to allow for differential expansion and to cushion the interface to minimize squeaks. I am installing a laminate with a pre attached pad on a plywood subfloor. There is nothing wrong with using roofing paper or even shingles my favorite if there is a floor slight out of level. Determine and mark high and low spots across the floor.

We did this two ways first by dragging our 8 foot level. The house shifted and there is one floor joist that is a bit higher than the others. Neither 15 felt nor red rosin paper are vapor barriers. Sanding the subfloor can remove minor swells or high spots in the wood but any low spots in the floor must be filled in order to level the plywood.

It caused a dip in the subfloor it levels out near the wall so the dip is say 4 feet wide or so. Steps for leveling a subfloor step 1. Pulled up carpet to find 5 8 mdf underlayment over 1 2 plywood subfloor with some low spots that are out of spec for the laminate flooring. I can t use a self leveling compound over mdf underlayment swell town and i don t want to pull up the entire mdf underlayment so i m leaning toward asphalt shingles and roofing felt but i can t.

Floor leveler is an option too but i usually use floor leveler for floating floors and shim traditional hardwood with shingles. With a single shingle in the deepest part of this leveling project the floorwright taper back with 30 pound roofing felt and stanley fatmax tack hammer util. Flip the piece of felt over so it s not curling up at the ends. The reason for this is leveler sometimes has issues with staples or nails going through it.

Easy way to level floor before hardwood floor installation using cork and shaving with a https amzn to 2ulh1ov makita planer https amzn to 2wqhfra level. Fill in low. Their purpose is not to keep subfloor moisture from the flooring. You can level the plywood floor yourself using roofers felt a type of black paper comprised of fiberglass or polyester fleece which will help prepare the surface for your hardwood installation.

Cut the felt at the end against the perpendicular wall by laying a level across the width of it and running a utility knife along the level. Check how level your floor is as you work to make sure you re not creating new dips and high points. Set a strategy for filling in low spots to even out the floor.