The Installation of Foam Board Insulation on Interior Walls

11Foam Board

Foam board insulation with your own hands is quite time-consuming, but it’s relatively simple. A lot of work is carried out without resorting to the services of professionals. Still, the process itself should be carefully prepared: you will have to select high-quality building materials and tools, work out the technology and explore all the nuances.

Usually, the house owners choose exterior foam board insulation. Nevertheless, the interior one is also very effective, but it has only one drawback – this method can only insulate the house with not more than two floors.

What is Foam Board Insulation?
This is made from polystyrene and polyurethane used to insulate interiors from exterior temperatures. Generally speaking, foam board is most often used to protect areas of a structure unfriendly to batts or blown Insulation.

An example might be an unfinished basement where the walls are made from cement blocks. Foam board insulation is anywhere from 1 “-4” thick, often providing an R-value of approximately 2 to 8. Some versions can also serve as a vapor barrier, vitally important where moisture is prevalent.

This can be used essentially anywhere other forms of Insulation can be installed. For example, foam board insulation can be used in place of blown-in attic insulation, batts, and spray foam. However, Foam boards generally do not provide the same r-value per inch as other materials, so other materials are often used when space is limited.

Visit for more info – Home – Majha Constructions Inc

Foam Board Insulation

How to install foam board insulation
Step 1-Inspect Interior Walls for Any Problem
In installing the rigid foam insulation on an interior wall, inspect the walls beforehand. Check for any moisture problem on the interior walls and apply waterproof paint to the affected area to resolve this. If you think the problem you encountered as you inspect the interior walls is major, seek a professional’s help.

Step 2-Attach the Strips
Once you are done inspecting and correcting any moisture problem on your interior wall, start attaching the furring strips. The furring strips may be made of wood or metal specifically designed to support surfaces. Use adhesive or a ramset in linking the furring strips against the walls 16-inches apart from each other.

Visit for more info – Home – Majha Constructions Inc

Step 3-Level the Surface
Walls inevitably have irregularities; thus, you will need to use a shim material is to level and correct the irregular borders. Shims are usually thin wood wedges sold cheaply or recycled scraps of wood, but they can also be metal. Level the furring strips by shimming them into position.

Step 4-Install the Panels
Get your measuring tape, measure the rigid foam insulation panels and mark the size needed. Cut the foam with the mark as a guide; you may use either a knife or saw to accomplish this process. Check if the panels comfortably fit with the installed furring strips. After, press the panel in between the strips. Ensure that there is no space or any gap left between the insulation boards as protection for your boards. Apply adhesive tape or caulks on wall areas that have holes or cracks.

Step 5-Secure the Foam Insulation Boards
The plastic Insulation serves as added protection to your rigid foam insulation panels, preventing the water vapor from penetrating the boards to avoid further damage. In stapling the plastic Insulation, do this carefully and avoid tacking it on the furring strips, unnecessarily perforating it. You can now cover the Insulation with drywall or paneling by attaching them to the furring strips.
What Tools Do I Need to Work with Foam Board Insulation?
Working with foam board insulation requires only a few hand tools. These include (but are not limited to):
• Sharp Utility Knife
• Measuring Tape
• Straightedge
• Hammer
• Framing Square
• Marker
Caulk gun (if using construction adhesive)

Visit for more info – Home – Majha Constructions Inc

Related Blog

What Does a DryWall Installer Do?


Leave a Reply