Flooring underlayment · In stock
Underlayment for every floor. Felt, cork, foam and moisture barriers, in stock.
Asphalt felt for nail-down hardwood, natural cork for sound and radiant heat, BlackJack foam for floating floors, 6 mil moisture barrier for concrete, and rosin paper to protect the finished floor. In stock at six Metro Atlanta locations, ready for pickup.
The right layer under the floor
Moisture control
Felt and laminated papers slow moisture vapor coming up from the subfloor, the main cause of cupping and squeaks in hardwood.
Sound and comfort
Cork and BlackJack foam cut impact noise between floors, a must in condos, townhomes and rooms over living space.
In stock, every location
Felt, cork, foam, moisture barrier and rosin paper, in the warehouse at all six locations. Grab it with the flooring and the nails.
Felt underlayment
The classic layer under nail-down, staple-down and floating hardwood. Asphalt-saturated felt slows moisture vapor from the subfloor and lets the floor slide as it's nailed.
Photo coming
Thin Felt Paper
Traditional asphalt-saturated felt for staple-down, nail-down or floating hardwood. Rolls out fast and reduces moisture vapor flow between the subfloor and the hardwood.
- Coverage
- 432 sq ft
- Use under
- Hardwood
Photo coming
Thick Felt Paper, 15 lb
Heavier-duty organic felt saturated with asphalt. More moisture resistance and more durability than thin felt, for staple-down, nail-down or floating hardwood.
- Coverage
- 432 sq ft
- Use under
- Hardwood
Photo coming
Brown Felt Paper, laminated
Semi-permeable brown kraft paper laminated with asphalt. A moisture vapor retarder for solid and engineered hardwood, and for tile.
- Coverage
- 500 sq ft
- Roll weight
- About 15 lb
Cork underlayment
Natural cork for sound control, radiant heat and crack isolation under hardwood, tile, stone and floating floors. Glue-down or loose lay.
Photo coming
6 mm Cork Rolls
A 4' × 50' roll of 1/4" cork. An acoustic, thermal and crack-isolation barrier for hard-surface floors that cuts sound on the floor and through to the rooms below.
- Coverage
- 200 sq ft
- Sound
- 22 ΔIIC
- Tested
- 74 IIC / 70 STC
- R-value
- 0.74
Rated under ceramic tile on a 6" slab with a suspended ceiling. Hypoallergenic, antimicrobial, mold and mildew resistant.
Photo coming
6 mm Cork Sheets
2' × 3' sheets of the same 1/4" natural cork. Easy to handle in small rooms and closets. Reduces sound transmission and protects the floor from subfloor stress cracks.
- Sheet size
- 2' × 3'
- Thickness
- 6 mm (1/4")
Hypoallergenic, mold and mildew resistant. Works with radiant heat systems.
Photo coming
12 mm Cork Sheets
2' × 3' sheets at 1/2" thick. For ceramic tile, stone, marble, glued wood and floating floors. A crack-isolation membrane that resists stress cracks up to 1/8" from the subfloor.
- Sheet size
- 2' × 3'
- Sound
- 24 ΔIIC
- Tested
- 71 IIC / 62 STC
- R-value
- 0.39
Rated under ceramic tile on an 8" slab. On and above grade, glue-down or floating. FloorScore certified.
Laminate & engineered floating floors
A foam layer made for click-together floors. Cushions the planks, blocks moisture vapor and quiets the floor.
Photo coming
BlackJack Underlayment
Closed-cell polyethylene foam, 2.5 mm thick, built for laminate and engineered floating floors. Built-in moisture vapor resistance with mold and mildew protection. Above, on or below grade, and over radiant heat.
- Coverage
- 100 sq ft
- Thickness
- 2.5 mm
- Sound
- 21 ΔIIC
- Tested
- 68–70 IIC / 65–66 STC
Moisture barrier
The layer over concrete. Keeps slab moisture out of vinyl, laminate and engineered floors.
Photo coming
Moisture Barricade Roll
A 6 mil moisture barrier for vinyl, laminate, SPC, WPC and engineered wood over concrete subfloors. Protects the floor from slab moisture and extends its life.
- Coverage
- 300 sq ft
- Use over
- Concrete
Floor protection
For after the floor is down. Covers finished floors while the rest of the trades finish the house.
Photo coming
Red Rosin Paper
Protects wood floors, carpet, tile and sheet goods during new construction. A good moisture barrier, and used in roofing to keep asphalt and coal tar from dripping through.
- Roll size
- 3' × 140'
- Coverage
- 420 sq ft
Don't see what the job calls for? Call us and we'll get it for you.
How many rolls?
Enter the job size and pick the product. We add 10% for overlap and cuts.
Pick up at a location near you
- Open by 7 AM on weekdays (Marietta at 6:30 AM)
- Pick up or local curbside delivery
- Free 30-day returns on in-stock items, at any of the 6 locations
Finish the job
Everything that goes with the underlayment, at the same counter.
Coverage figures are per roll or sheet before overlap. Sound and thermal ratings are from manufacturer testing under the stated assemblies. Special-order items can't be returned.