Subfloor Over Concrete Garage Floor

How to install subfloor sleepers over slab in the basement and other rooms with a concrete floor.

Subfloor over concrete garage floor.

Nail cross blocking boards to hold the joists together every 4 feet. Additionally the underlayment is always a waterproof material that will create a waterproof barrier. Check your flooring manufacturer s recommendations to ensure you re using a proper subfloor. Subfloors are strong versatile and very durable.

The subfloor is the foundation beneath finish flooring materials. Lay the joists on edge across the width of the floor. Needless to say our heating bill for the winter was very high. The walls and roof have been insulated with fiberglass batt insulation and we are in the process of insulating the floor.

The garage conversion requires the floor to be raised to match the house so first job is to build a suspended floor. Install a wooden subfloor to help insulate flooring from cold concrete. Time to get building again. Some garage flooring options are designed to be installed directly on a concrete surface.

A little bit of work now will make a big difference in the long run. The underlayment exists to create an air filled gap between the concrete below and the subflooring which will help to insulate the floor and keep the room warmer. On wood frame floors the subflooring provides a continuous structural surface over the floor joists. In basements and in homes with slab on grade foundations the subfloor may simply be a concrete slab.

Place them 16 inches apart. Others require some type of subfloor to protect them from the effects of cold damp concrete. Use a 6 staple pattern at the perimeter of the subfloor. As with a floated subfloor nwfa recommends a vapor retarder for glue down subfloors when installing wood flooring over concrete.

Install either 2 by 2 2 by 4 or 2 by 6 joists over the garage floor depending on how much room you have floor to ceiling. Get a comprehensive breakdown on which materials to use what to take into consideration and what steps to take for four subfloor systems. The garage floor is a concrete slab on grade. Floated subfloor alternate subfloor glue down sub floor and the nail down subfloor system.