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.
How to insulate a cellar floor.
Avoid expanded foam insulation the type that has little white beads pressed.
Extruded polystyrene foam can be yellow pink or blue depending on the manufacturer for insulating basement walls.
Step 1 clearing the basement.
Step by step basement insulation installation.
If you live in a cold climate then you re no stranger to cold concrete floors in the winter.
Insulating the concrete floor in your basement will save you money on your heating bill keep your basement warmer and help keep the rest of your house warmer.
Hard flooring laid directly on concrete is often very cold and tends to suck up the heat around it making the basement feel cold even when you ve got the space heater on or the fireplace going.
After the cement is set apply a foam board adhesive to the rear of a polystyrene insulation panel then press the panel to the wall.
In other words you re in for a lot of work.
Insulating a basement floor requires a simple framework for the insulation.
Installing basement floor insulation on top of the concrete floor is a good idea if you decide to finish off the basement.
And now that your basement is going to be cold in the winter you ll also need to insulate any ductwork and hot water pipes that are below the ceiling weatherstrip the basement door and wrap a thick layer of fiberglass around the water heater tank.
Adhere and apply the remaining panels.
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.
Start by gluing 3 4 inch extruded polystyrene foam insulation to fit against the rim joists and foundation walls.
If you re planning on finishing a basement or portion of your home that has a concrete floor then it may be a good idea to insulate it before installing basement flooring.
Insulating the basement floor before installing finished flooring dramatically improves the comfort of a basement living space.
In england if you are upgrading your floor you will need to achieve minimum a u value of 0 25 w m k for new floors it s 0 22 w m k.
If the basement floor is wet hire a professional find the source of the problem and fix it before doing anything.