Too Much Glue Hardwood To Concretr

This is a common mistake with newcomers to the do it yourself hardwood flooring field.

Too much glue hardwood to concretr.

They use too much adhesive thinking that more is better and the panels will be more secure this way. The weight of the glue and planks can become too overwhelming for the lightweight concrete or gypsum and ultimately lead to disastrous results. Although this may be true they run out of the adhesive halfway through the installation process and lose precious work hours. A vapor retarder is required for installation over concrete with a calcium chloride reading greater than 3 pounds a relative humidity reading of greater than 75 or a calcium carbide cm reading of greater than 2 5.

Glue is a secondary method of attachment for bonding wood to concrete. Use a notched trowel to spread the adhesive. Floated subfloor system 1. The adhesive manufacturer should have instructions regarding specific trowel requirements.

When you glue a hardwood floor to concrete the subfloor must be completely level. When glue is used in conjunction with screws and nails the bond is strong enough to resist natural movement of the wood. Glued down floors are also not a good fit for below grade concrete or high moisture subfloors which are often found in basements.