Rigid foam board insulation is commonly used to help insulate homes. With varying sizes of thickness, this insulation is a great way to save on energy costs. This type of insulation is commonly installed in basements over concrete block, and installing drywall on top of it can give the room a finished and elegant look. Installing drywall over insulation is similar to installing drywall into regular studs; however, there are some added steps to ensure the drywall is properly installed.
- Tape measure
- Chalk line
- 1x3 furring strips
- Masonry bit
- Hammer drill
- 4-inch long spring spikes
- Drywall screws
- Utility knife
- Joint compound
- Taping knife
- Drywall sander
Multiply the width of the wall by its height to determine how many sheets of drywall will be necessary to cover the insulation.
Mark a horizontal chalk line along the foam board 3 inches from the top of the wall, followed by a line 3 inches from the bottom. Measure from the bottom to the direct center and snap another chalk line. Add one more chalk line directly between the middle line and the top line. The fifth and final line will go between the middle line and the bottom line.
Line up the first furring strip on the bottom chalk line. Drill a hole 5 inches deep with a masonry bit and hammer drill through the insulation and into the concrete walls. Begin at one end and drill a hole every 16 inches. Repeat this process for each of the five furring strips. Drive 4-inch long spring spikes with a hammer into each of the holes.
Connect 1x3 furring strips vertically to the horizontal strips. Space the strips every 16 inches on center across the entire length of the wall. Drill in drywall screws spaced every 16 inches vertically.
Line up the first piece of drywall along the wall. If the sheet needs to be cut, use a T-square and cut along the straight edge with a utility knife. Bend the piece of drywall down and it will snap. Cut the back side to break it off completely.
Drill drywall screws beginning at the top left corner into the 1x3 vertical furring strips. Position the screws every 16 inches all the way down the entire sheet. Go around the entire sheet of drywall, screwing into the top, bottom and the other side. Repeat this process for each sheet, cutting to fit when necessary.
Mud over the seams and screws holes with joint compound and a taping knife. Spread out the mud with a knife to cover any gaps. Smooth out the compound by sanding down the area with a drywall sander.
- Photo Credit Amy Eckert/Photodisc/Getty Images
Drywall Installation Over Rigid Insulation Board
Rigid insulation board is an excellent choice for insulating concrete block and poured concrete walls. Rigid board features a low profile and...
How to Apply Drywall Over a Rigid Foam Board on an Interior Ceiling
Rigid foam board is an insulation sometimes used on walls and ceilings as either the main insulation or an added layer of...
How to Install Rigid Insulation Behind Drywall
Rigid insulation is made from either extruded polystyrene, polyisocyanurate or polyurethane. Commonly known as blueboard, beadboard, Styrofoam, foam board or a ...
How to Install Foam Board
Add extra living space to your home by insulating your basement with rigid foam board. It's easy to install yourself and doesn't...
How to Insulate & Sheetrock Over Lathe
Before the production of drywall panels, wall construction consisted of the application of small wooden strips, or lathes, nailed to structural studs....
How to Install a Rigid Foam Board
Rigid foam board is installed on the exterior walls of a home or other building. It provides a thick layer of insulation...
How to Buy Track Spikes
Wearing a pair of well-fitting track spikes during a race can help you run your best time while avoiding injury. Because of...
How to Install Styrofoam Over Fiberglass Insulation
Insulating a house can be done by installing a combination of fiberglass as well as Styrofoam insulation. Normally, the fiberglass insulation is...
DIY Basement Insulation Foam Board
Basement insulation with foam board is a good step for creating a warm usable space in the basement. Foam board is easy...
How to Install Rigid Foam Insulation
Rigid foam insulation can be installed in a weekend by a novice do-it-yourselfer. It's easy to install and energy-efficient. When it's covered...