Should I Use 30 Pound Felt Paper Under Hardwood Flooring?

How To Level Subfloor LOW Spot Flooring Install Tip (Roofing Felt)

Should I Use 30 Pound Felt Paper Under Hardwood Flooring?

Lifeproof Stony Plain Oak 14 mm T x 7.6 in. W Waterproof Laminate Wood Flooring (13.3 sqft/case) 56822 - The Home Depot

Roberts 30 lb Waxed Paper Roll is recommended for the installation of hardwood and engineered nail-down flooring. The wax paper provides a professional grade thickness and performance to help ease the installation and reduce squeaks in wood floors. The wax paper is simply placed between the subfloor and the wood flooring on above grade installations. Comes in an extra large, 3 ft. x 250 ft. roll for a total of 750 sq. ft. Convenient 3 ft. x 250 ft. roll for a total of 750 sq High quality 30-lb.

Roberts Heavy Duty Waxed Paper Underlayment 70-120, 750 sq/ft Roll x 250'L x 3'W

Solutions to make even a second floor with up to 1 inch difference between spots. Should I simply go with self-leveling compound or try to fix the structure of the house.

The Pros and Cons of Using Felt Underlayment Under Hardwood Floors - First Atlanta Flooring

Products– Dakota Timber Company, 41% OFF

How to Level a Plywood Floor With Roofers Felt

Blue Ridge Hardwood Flooring Hickory Natural 3/4 in. Thick x 5 in. Wide x Random Length Solid Hardwood Flooring (20 sqft / case) 21075 - The Home Depot

Products– Dakota Timber Company, 41% OFF

ASU-15 Asphalt Saturated Underlayment Hardwood Flooring Paper - Carpet Underlayments