How To Insulate Under Basement Floor

His goal is to have the floor comfortably warm in this climate zone 5 locale even in the dead of winter.

How to insulate under basement floor.

Insulating a basement floor requires a simple framework for the insulation. In the new basement is it better to insulate under the new poured concrete basement floor with the proper foam sheeting as opposed to insulating the new floor on top with sub floor options including foam dry core etc. I am renovating a 60 year old home with about a 700 sq ft addition. If the basement floor is wet hire a professional find the source of the problem and fix it before doing anything.

Feldman plans to insulate the basement walls with closed cell spray polyurethane foam. Why it s important to insulate a concrete floor in the basement. Step 1 clearing the basement. You will gain a more comfortable home environment a mold free basement and savings on your yearly energy bills.

Remove all furniture and storage items that are located in the basement area. If the concrete floor is dry and reasonably level insulate directly on top with a rigid foam insulation that is impervious to moisture air leakage and radon gas. Creating an insulation layer and a vapor barrier between the concrete slab and the ground beneath it is the best practice in insulating basement floors. Dave feldman is building a new house near boston massachusetts that will have a walkout basement with a tile floor.

Thanks for your help. If ground under the home is cooler than the basement temperature which is the case in almost every climate year round heat will naturally try to escape through the concrete slab. Three key benefits of insulating the concrete floors in the basement are heat loss prevention moisture prevention and a higher level of comfort. If you live in a cold climate then you re no stranger to cold concrete floors in the winter.

An uninsulated or under insulated basement floor is a major source of heat loss in the home.