Insulation Installation in Knoxville, TN

There are many different ways that RetroFoam can be installed. Typically, our trained and professional insulation installers will drill a hole into each stud cavity and slide a clear vinyl tube into the wall. They will then pump RetroFoam into the wall until the installer sees that the wall cavity is as full as possible. Of course, all of this is performed without damaging the wall covering.

RetroFoam is best installed in enclosed wall cavities. RetroFoam is not a spray foam –  it’s an injection foam. As such, it can be used in block foundations, vaulted ceilings, and even some porch or bonus room floors above a garage.

People love RetroFoam because you don’t have to remove wall coverings or siding to install it. Our trained professionals know how to carefully remove & replace your house siding, drill through and repair drywall, plaster, brick & stone. RetroFoam costs less than the expense of removing your wall covering or siding.

Because of their training and experience, our installers know when the wall is full enough. To determine if your wall is full, our installers count seconds and closely listen to the wall as RetroFoam is injecting into the wall cavity. They can feel the pressure mounting on the filling hose.  There may be some minor gaps where we did not get the wall cavity completely full. We believe a 98% insulated home is better than a 0 or 50% insulated home. We are always here after the sale should you ever discover an issue.

insulation installation in knoxville tn

Installation Types

VINYL SIDING

We carefully unzip vinyl and drill a hole in sheathing or underlayment, insert our fill tube until we reach bottom plate and begin injecting foam, then we slowly pull the hose out of the wall as we fill. We repeat this for the upper part of the cavity. We repair the hole with a solid plug and exterior grade tape and reattach vinyl properly. We clean the vinyl as we go.

RetroFoam Installation
wood lap insulation installment

WOOD LAP SIDING

We carefully pry off wood lap siding with plans to reinstall with galvanized ring shank #6 siding nails. We drill a hole in sheathing or underlayment, then insert our fill tube until we reach bottom plate and begin injecting foam. We then slowly pull the hose out of the wall as we fill. We repeat this for the upper part of cavity. We repair the hole with a solid plug.

HARDIE PLANK SIDING

Hardie plank siding is much more delicate than wood to remove but we can do it. If we damage any we can simply replace and paint as need. We very cautiously pry off the thin siding with hopes to reinstall with galvanized ring shank #6 siding nails. We drill a hole in underlayment and insert our fill hose until we reach bottom plate and begin injecting foam, then we slowly pull the hose out of the wall as we fill. We repeat this for the upper part of cavity. We repair the hole in underlayment with a solid plug and then reinstall the siding.

hardie plank siding insulation installment
composite shake siding insulation installment

COMPOSITE SHAKE SIDING

This can often contain materials that can be harmful if handled improperly. We have successfully completed many of this type of install. Often it has been just before our client was installing new siding over the old.

BRICK & STONE EXTERIOR

This is what we call “foaming blind” as it presents additional layers of effort. We drill a penny-sized hole in the Tee intersection of the mortar joints, about three holes per stud cavity. This helps us balance the pressure. We inject RetroFoam through a copper nipple into the wythe cavity and the wall cavity which super-insulates the wall. This is one of our favorite install methods. Our crew is pretty good at matching your old mortar color too when we repair the holes….a bunch of holes!

brick insulation installment
dryway insulation installment

PLASTER/DRYWALL WALLS

We protect the interior of the home with plastic as needed. We identify the best elevation with the home owner to drill our insertion hole. We insert our fill hose until we reach the bottom plate and begin injecting foam, then we slowly pull the hose out of the wall as we fill. We repeat this for the upper part of cavity. Afterward we begin the hole repair with drywall tape and mud. Typically the home owner completes the repair and painting after we exit.

T111 WOOD

T111 siding is wood sheet goods material with vertical grooves. These normally come in 4’x8′ sheets. In this case we drill directly through the siding sheet, inject RetroFoam into a 2 1/2 inch diameter hole (at a elevation we can agree on with you) and then we install a nice cedar trim board stained or painted to compliment your home. It’s like a belt around the home and looks nice when done professionally.

t111 wood insulation installment

We take good care of your home during the insulation installation process and we treat each home as if it were our own.

To find out more about how our locally owned RetroFoam team can help you, simply give us a call at 865-535-7910 to schedule your no-hassle, no obligation free quote. Better yet, to save an additional amount, fill out our Free Quote Form on our website and we will come see you soon!

retrofoam comparison chart