Subfloor For Hardwood On Concrete

Inspect the moisture level check the moisture level of the subflooring using a moisture meter.

Subfloor for hardwood on concrete.

Check for cracks and crumbling. If you have a subfloor that consists of wood on top of concrete you ll need to test both floors. The concrete subfloor must be sufficiently strong to safely support the flooring furniture and people in the room. Floated subfloor alternate subfloor glue down sub floor and the nail down subfloor system.

To level a subfloor for installing laminate follow the directions above to remove high and low spots. Use a minimum 3 4 23 32 18 3 mm 4 x 8 subfloor panels. As with a floated subfloor nwfa recommends a vapor retarder for glue down subfloors when installing wood flooring over concrete. With dry concrete and the right subfloors and vapor retarders solid hardwood floors can be installed on slabs that are either on grade at ground level or above grade above ground level.

Use a 6 staple pattern at the perimeter of the subfloor. For more on concrete subfloors see how to get a concrete subfloor ready for wood floors in the february march 2003 issue in new construction the slab should be given at least. Laminate is a budget friendly attractive alternative to hardwood flooring. Laminate planks snap together and float above a subfloor which means tiny subfloor imperfections are okay although again a level subfloor will help prevent damage.

Use a moisture vapor retarder between the subflooring and the hardwood flooring to prevent moisture from leaching through the joists and subfloor to negatively affect the hardwood above. How to install a glued subfloor over concrete. Concrete is a porous material and can retain moisture and emit moisture vapor which could end up in the wood floor above unless the proper precautions are taken. Learn how to install beautiful hardwood floors over a concrete slab.

A floating floor laminate or locking hardwood shouldn t be installed over a wood subfloor that s adhered to a concrete slab. For nail down wood subfloors installed on grade and below grade add a moisture control system below the subfloor material. Moisture can pose problems for solid hardwood floors below ground level so engineered wood floors made of layers of wood glued together are the best. Fasteners may be powder driven pins pneumatic driven nails screws deformed pins or other fasteners suitable for concrete application.