Rigid Foam Insulation Under Tile

Seal the joints with a sealing tape tyvek etc and then seal the bottom joint at the floor level and the top joint at the subfloor above with an expanding spray insulation foam use the one you would use for a window installation.

Rigid foam insulation under tile.

I also raised the exterior doors 1 1 2. If not what can i use to insulate plus finish this. Eps is used under roofing over foundation walls and beneath siding. What i did in those areas was to put down 6 mill visqueen 1 high density styrofoam floor pad laminate flooring.

There are two ways to handle insulating concrete floors. R 15 scored squared edge rigid foam board insulation sheathing model 9gb view the owens corning basement and crawlspace insulation. Foam board insulation is used on attics and walls yet it can also be used to insulate your floors. But insulating your floors is a good idea for many reasons including energy efficiency and height adjustments.

This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. Or as demonstrated here you can cover the slab with rigid foam insulation add two layers of plywood and then add the finish flooring. You can attach wood sleepers to the floor fill the gaps with rigid foam insulation and then apply your finish flooring. The combination of the forced air furnace insulation on the floor has made the room very livable in the winter.

It provides an r value of 4 per inch of thickness and is the cheapest type of foam board insulation. I left the floor in the laundry bath as it was with vinyl over concrete. I have a large room with concrete slab floor and would like to insulate it and place finished flooring materials over it. The catch is i want to put tile down.

The rest of the bedroom floor is 3 4 oak which has already been installed and finished. However there is a portion at the entryway that i would like to cover with ceramic tiles. I believe 1 2 plywood over the 1 rigid foam will support hardwood flooring. I dont know if i can tile over 3 4 osb which has been tapconed through to the concrete.

Is the 1 2 adequate underlay going to be sufficient. Foamular foamular 250 3 in. The tile floor when finished will sit just shy of the oak floor by about 1 4 to 1 2. I had a quote from an insulation company to take down the drywall ceiling of the garage and insulation and replace it with spray foam for 2 000 00 gulp.

Make sure the foam boards run from the floor to the underside of your floor deck above. I was then going to tapcon a perimiter of 1 x 2 to match the height of the rigid insulation boards on the concrete floor in the rooms and screw the plywood sheeting to those boards over top of the rigid insulation.