Gluing Underlayment To Concrete

The nwfa recommends plywood with a minimal thickness of.

Gluing underlayment to concrete.

After installing a vapor retarder if necessary cut your plywood panels into 2 x8 or 4 x4 sections. Choose one that is formulated for gluing wood flooring to a concrete slab apply it with a notched trowel to the concrete allow it to set according to container directions these products are essentially a contact adhesive so you would allow a film to form on the adhesive before applying the plywood then press your plywood firmly against the concrete. Here is couple of tricks on how to cut when you are installing underlayment for hardwood or laminate floor installation. Use a quality cleaner like zep professional concrete and masonry floor cleaner 27 per gallon.

You should always check with the installation instructions of the underlayment for proper installation instructions first. Using a glue down floor is an option in above grade installation only since installation below grade requires a plastic barrier on top of the concrete. As with a floated subfloor nwfa recommends a vapor retarder for glue down subfloors when installing wood flooring over concrete. Subscribe for more vids.

Your underlayment has basically formed a bubble underneath. To create a surface that will be strong and long lasting and that won t shift or peel up as the building shifts or moisture accumulates glue your underlayment down to create a more stable base. But you ll be adding 1 25 1 50 sq ft to the price of the job. Heat will break the bond of the old tile glue to the concrete.

It can be installed on top of concrete before hardwood flooring or another type of material is installed. Underlayment is is a floating material the same as your laminate flooring. Another way that involves less strain and hard work is to glue the plywood to the concrete. In most cases you should not glue or nail your underlayment down.

Now that the outside have dried quicker of course now the inside is in the trapped little bubble with no chance at getting good air. No you should not glue down your underlayment. An elastomeric coating followed by bostics best will provide a moisture barrier good adhesion to the concrete. Not for gluing foam felt whatever to concrete.

One way to attach plywood to a concrete surface is to screw it into place with concrete fasteners. 500 750 square feet of coverage. A plywood underlayment helps to strengthen a subfloor that has some flex or bend to it to make a more stable foundation for your floor.