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615 Insulation, insulation company in Nashville TN 615-431-3789

Walls, Floors & Crawl Spaces

Exterior foam board insulation that wraps the house in a continuous layer outside the studs

Rigid foam under new siding stops heat from leaking through the framing and adds an extra layer of protection against moisture.

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Exterior Foam Board Insulation

Studs conduct heat much faster than insulation does, so even a well-filled wall leaks through its frame. Rigid foam board on the outside of the sheathing adds a continuous layer that interrupts those leaks, and a good housewrap and tape make the wall tighter still.

We install exterior foam board with new siding, additions and re-cladding projects across Nashville and Middle Tennessee. We fasten board to the sheathing, tape the seams, flash around windows and doors and coordinate with the siding crew so the finish goes on right.

What you get

Done right, from the first walk-through

01

Continuous layer

Interrupts the leaks through studs.

02

Taped seams

Air and water barriers combined.

03

Flashed openings

Windows and doors detailed.

04

Works with siding projects

Installed before the new cladding.

The process

How your service comes together

  1. 1

    Plan the wall

    We pick board thickness and fasteners.

  2. 2

    Install the board

    Foam is fastened, seams taped and openings flashed.

  3. 3

    Hand off to siding

    We coordinate with the siding crew.

FAQ

Common questions about exterior foam board

When does exterior foam make sense?

When siding is coming off anyway, when wall cavities are small or when you want a higher performing wall.

Does it change how the house looks?

The wall gets thicker, so window trim and eaves are adjusted by the siding crew.

Can I combine foam board with cavity insulation?

Yes. That combination often gives the strongest performance.

Let us help with your exterior foam board

Call, text or send the form. Tell us about the building, what bothers you and when you hope to start, and we will take it from there.

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