Underlayment


Also found in: Dictionary, Thesaurus, Wikipedia.

Underlayment

A layer of roofing felt, composition board, or other thin sheet material that covers the subfloor as a base for a finish floor.

underlayment

underlayment, 1
1. A material such as plywood or hardboard placed on a subfloor to provide a smooth, even surface for applying the finish.
2. The material, usually No. 15 felt, used to cover a roof deck before shingles are applied; also called underfelt.
References in periodicals archive ?
The company said it acquired InterWrap for USD450m and the transaction is is expected to strengthen its capabilities to support the conversion from organic to synthetic underlayments and accelerate its growth in the Roofing Components market.
They primarily produce synthetic roofing underlayment, including the Titanium and RhinoRoof brands, and lumber and metal packaging products, including the Duramet and WeatherPro brands.
The purpose of this project was to manufacture particleboard targeted for floor underlayment applications that could meet or exceed the PBU requirements by ANSI A208.
Ball smoothing underlayments, Stopgap 300 HD is protein free to prevent bacterial growth.
If your subfloor is concrete, the underlayment is unnecessary.
Using a 1/16-inch notched trowel, apply a thin, even coat of adhesive to the underlayment flooring or to the back of the patch.
The contractor installed the anchors, placed reinforcing wire where necessary, and gunited the underlayment to a thickness of up to 4 inches prior to finishing the material by hand.
Solution: Lap the felt underlayment over the drip edge.
While building owners, architects, and builders can choose from a wide variety of underlayment materials to protect commercial floors, they increasingly have made poured cementitious gypsum their material of choice.
The Brock Performance Turf Underlayment, a stoneless impact and drainage layer, specifically for use under synthetic turf, takes just two days to install.
Earlier this year, Columbia Forest Products became the new operator of the former Weyerhaeuser multiple hardwood plywood underlayment operation.
Included in the line are four types of padding: a better and best rug gripper, a felt underlayment and a pad specifically designed for rugs layered over carpet.