Rigid Foam Board Insulation in Nashville and Middle Tennessee
Walls, Floors & Spray Foam

Rigid Foam Board Insulation

Continuous insulation panels for basement walls, exterior sheathing, slabs and roofs, taped and sealed for lasting performance.

Rigid foam boards give you a continuous layer of insulation that framing cannot interrupt. They come in several types, including expanded polystyrene, extruded polystyrene and polyisocyanurate, each with different strengths for moisture, R-value and cost.

We use boards on basement and foundation walls, under slabs, over exterior sheathing, on flat roofs and in custom spots such as rim joists. Seams are taped or foamed, edges are sealed and the boards are fastened with the right fasteners for the surface they sit on.

Continuous insulation

Studs conduct heat in a framed wall. A layer of foam over the studs or the foundation covers them, which reduces thermal bridging and raises the effective R-value of the wall.

Choosing the type

Polyiso has a high R-value per inch, XPS resists water and EPS offers balanced value. We match the type to the location, from foundation walls to roof decks.

Seams and edges matter

A board is only as good as its joints. Taped seams, caulked edges and foamed gaps turn separate panels into a continuous, air-resistant layer.

Fire and finish

Foam boards inside the house usually need a thermal barrier such as drywall. We plan the covering and the fastening so the finished wall is neat and safe.

What is included

  • Review of the surface and moisture
  • Foam type and thickness selection
  • Cutting and fitting of boards
  • Seams taped and gaps sealed
  • Fastening and trim details
  • Covering for fire protection
Before and after

See the transformation.

Drag the handle to compare.

After: a basement wall with a framed wall with rigid foam insulation against the concreteBefore: a basement wall with a bare, cold concrete wallBeforeAfter
Cold basement wall gets rigid foam. From a bare, cold concrete wall to a framed wall with rigid foam insulation against the concrete.
Why it works

What you get with Rigid Foam Board Insulation

Continuous layer

Reduces thermal bridging at studs.

Right foam for the spot

EPS, XPS and polyiso options.

Sealed seams

Taped and foamed for airtight joints.

Moisture-aware details

Suited to basements and slabs.

Proper fastening

Fasteners matched to concrete, wood or metal.

Covered and finished

Barrier and drywall planned.

Try it now

Spray Foam Board Feet and Thickness Calculator

Enter the area and the thickness to see board feet of foam and the approximate R-value for open-cell and closed-cell.

How it works

Our process, start to finish.

  1. 01

    Call and schedule

    You tell us what is going on, which rooms bother you and what you hope to change, and we set a time that fits your day.

  2. 02

    Inspect and assess

    We walk the attic, walls, crawl space and equipment, measure depths and use thermal imaging when it helps.

  3. 03

    Seal and prepare

    We protect the house, seal air leaks, place baffles and fix small problems so the insulation can do its job.

  4. 04

    Install the insulation

    Loose-fill, batts, foam or board goes in to the planned depth, with clean edges and clear markers.

  5. 05

    Verify and test

    We measure the result, take photos and test air leakage when the scope includes it.

  6. 06

    Walk through and enjoy

    We walk the finished work with you, answer questions and leave the site clean.

Questions

Rigid Foam Board Insulation FAQ

Which type of foam board should I use?

It depends on location and goals. We explain each type and recommend one for your project.

Do I need to cover foam board inside the house?

Usually yes. Building rules typically require a thermal barrier such as half-inch drywall over exposed foam.

Can foam board go on the outside of a wall?

Yes, under new siding or during a re-side. It adds R-value and can improve air sealing when seams are taped.

Is foam board good for basement walls?

It is one of the best options when the wall is dry, because it resists moisture and does not feed mold.

How is it attached to concrete?

With construction adhesive and concrete fasteners, depending on the wall condition and finish.

Next step

Get your free Rigid Foam Board Insulation estimate.

Tell us about the project and we will call you back to talk it through.

Or call (615) 357-7797 to talk now.

Tell us about your project

We will call you back to talk it through and set up a visit.

Prefer to talk? Call (615) 357-7797. We never sell your information.

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