Laying Insulation Over Concrete Floor

If your basement slab lacks sub slab foam you ll have to install the insulation above the slab.

Laying insulation over concrete floor.

Strips should be about 12 1 2 inches wide. If you use an underlayment without a moisture barrier it s a good idea to install a sheet of plastic below it for insurance. Concrete is cold and hard but an insulated concrete slab can make a heated garage significantly warmer and more energy efficient. Perhaps the easiest way to improve the insulation of a floating vinyl floor on concrete is to install a thermal underlayment preferably made of cork felt or a similar material.

Be sure to use compression grade rigid. Instructions lay vapor barrier insulating concrete garage floors begins with covering the entire floor with 6 mil polyethylene which. 6 step process to insulating your concrete floor step 1. Lay rigid foam lay sheets of high density rigid foam over the polyethylene.

There are several ways to install subflooring above the rigid foam. The best way to insulate a slab is to isolate it from the ground. How to install insulation below a floor slab with kingspan kooltherm k103 floorboard. Step 2 priming solid floors skip to step 3 for timber floors.

Check for level frequently as you go. 6 fit 1 1 2 inch thick rigid foam insulation between the sleepers. You can use either one or two layers of plywood or osb and the subflooring can either be fastened to the concrete with long tapcon screws or it can simply float above the foam. Shims can be added where needed to ensure a level surface.

Get a comprehensive breakdown on which materials to use what to take into consideration and what steps to take for four subfloor systems. Floated subfloor alternate subfloor glue down sub floor and the nail down subfloor system. Floor insulation step by step installation guide step 1 preparation. Before we can start laying down our insulation there are a few things that need to be done.

Sand blinding assuming hardcore has been used the next step is sand blinding you will need building sand for. Always measure for an exact fit so as not to compress the insulation which can compromise its performance. If you have enough clearance in the basement to add a few inches of height to the floor one of the most effective ways to insulate the floor is to first install a sheet of polyethylene as a vapor barrier over the concrete extending it about three inches up the walls. Learn how to install beautiful hardwood floors over a concrete slab.