How To Fix A Floor Without Underlayment

Use galvanized 8d nails or deck screws to fasten the new plywood to the floor framing.

How to fix a floor without underlayment.

Drive a screw every 6 to 8 inches along all of the joists. Lay down the first underlayment panel with the smooth side facing up. Do this by spreading a layer of dry thin set mortar product over the floor. Click the links below to see inside.

Fasten the sheet to the floor joists with 2 1 2 inch screws driven through the old subflooring and into the joists below. The home mender dustin luby shows us how to repair that unsightly rot hole in your floor to prepare it for a new. To remove tiles use a grout remover tool to score the grout and a putty knife or small pry bar and a hammer to lift tiles. With hardwood floors drive ring shank or cement coated flooring nails into the seams between boards.

Offset the short edges of the underlayment by at least 2 inches from any floor joists and at least one joist space from the short edges of the subflooring. Leave a 1 8 inch gap between the ends of the sheets. To fix a floor covered with deep pile carpet drive a wallboard screw through the carpet and pad into the floor joist. If an engineer found no structural issues you may be able to level the floor by applying a cement based self leveling floor product such as henry level.

Offset the long edges of the underlayment panel by at least 2 inches from long edges of the subfloor panels below. You want just an even dusting over the floor to eliminate stickiness under the new flooring. Separate wooden bridging members to eliminate noise problems. Move the thin set around using a broom.

Countersink the screw head into the subfloor. Remove the floor covering over the damaged subfloor area. Sweep up the excess.