- Measure out 2 feet from the first corner of the wall and line up the 1x3 there. Drill into the concrete block wall through the furring strip with concrete screws. Insert a screw every foot throughout the 1x3 to secure it to the wall. Measure 2 more feet and line up another furring strip. Install it in the same manner. Continue around the entire area of the room until all of the furring strips have been installed.
- Cut the insulation in half at 24 inches to fit in between the furring strips. Lay down a T-square at the desired spot where the cut is going to be made. Score the insulation with a utility knife running along the T-square. Snap it to break it in two. Repeat this process for all of the pieces of insulation that need to be cut.
- Spread construction adhesive onto the back of the first piece of insulation. Spread it out, covering the entire board. Do the same for the concrete wall it will be installed on. Press the insulation board against the wall and push down on the board so it can adhere to the wall. Repeat the process for each piece of insulation around the rest of the room.
- Install a vapor barrier over the insulation. Staple plastic sheeting to the furring strips. Roll out the plastic and place a staple every 6 inches up each furring strip so the plastic is secure to the strips.
Things You Will Need
- 1x3 furring strips
- Safety goggles
- Concrete screws
- Utility knife
- Concrete adhesive
- Plastic sheeting
- Taping knife
- Always wear safety goggles, gloves and a respirator when working with insulation to prevent inhalation of any insulation.
- The furring strips are installed so drywall can go over the top of them and screwed into the strips. It is usually code that drywall be installed over insulation.