Job site conditions
– As moisture is an important factor with natural wood, a few points must
be considered when installing a solid hardwood floor.
Check the job site before delivery. Be sure the flooring will
not be exposed to excessive periods of high humidity or moisture.
Basements and crawl spaces must be dry and well ventilated. In
joist construction with no basement, outside cross ventilation through
vents or other openings in the foundation walls must be provided with
no dead air areas. A surface cover of 6 mil polyethylene film is
essential as a vapor retarder in crawl space construction.
The building should be closed-in with outside windows and doors
in place. All concrete, masonry, sheetrock and framing members, etc.
should be thoroughly dry before flooring is delivered to the job site.
The average moisture content of framing members and subflooring
should be below 12%-14% before delivery of the flooring.