Spray Foam Insulation in Dayton, TN

Dayton's up north in Rhea County near Chickamauga Lake, and we make the drive up there all the time. A lot of these homes are rural, spread out, and heated with electric or propane that isn't cheap — so when a house leaks, you feel it on every bill. The story's the same whether it's an old farmhouse or a place out by the lake: high heating costs and rooms that never hold their temperature. That comes down to a leaky attic and crawl space, and that's what we seal.

Why Dayton homes need spray foam

Older farmhouses and lake homes out here tend to have leaky attics and open crawl spaces that let heat pour out all winter and pull humid lake air in all summer. Fiberglass can't stop that air movement — so the heat you paid for leaks right back outside, and the propane tank runs dry faster than it should. Open-cell spray foam seals the attic and crawl space so the heat stays in the house. We'll seal and encapsulate the crawl space too, which keeps damp ground air out of your floors and your system. When you're on propane or all-electric, sealing the shell is the single most reliable way to bring that bill down — and keep it down. Outside Dayton? We spray foam attics and crawl spaces all across our service area. We're regularly in nearby Spring City, Soddy-Daisy, and Dunlap too.

Dayton sits at about 696 feet on the Rhea County valley floor, with Walden Ridge and the Cumberland Plateau standing up west of town and Chickamauga Lake backed up along the Tennessee River to the east. That's a rough spot for a building envelope. Cold air slides off the plateau in January and settles in the low ground, and the lake holds heat and moisture in the air well into fall. Dayton averages close to 59 inches of precipitation a year.

We've been spraying foam for 17+ years out of our shop on Gifford Street in Chattanooga, and Dayton is a straight run north on US-27. We work on the old frame houses around the courthouse square, the farmhouses and ranch homes out on county road frontage, the lake houses that went up after the late 1990s, and the shops and barns in between. Different buildings, same underlying problem: air moves through them, and air carries heat and moisture with it.

Homes, barns, shops — we handle it all

Rhea County work runs the gamut — old farmhouses, lake places on Chickamauga Lake, pole barns, and shops. Open-cell foam fits all of it: seal a drafty farmhouse attic, dry out a crawl space, or spray the underside of a metal barn roof so it's not dripping condensation and roasting in summer. You don't have to be near town to get it done — we bring the rig to you.

What we see in Dayton homes

Dayton wasn't built all at once. The town was settled around 1820 as Smith's Crossroads, renamed Dayton in 1877 and incorporated in 1903. What got built in each stretch has its own way of leaking.

The old town houses, roughly 1890 to 1940. The Rhea County Courthouse went up in 1890-91, and a good bit of the housing around the square dates from that era and the decades after. These are balloon-framed, sitting on brick or block piers over an open crawl space, with tall ceilings and stud bays that run clear from the crawl to the attic. The failure mode is stack effect. Warm air rises out of the top of the house, and the house replaces it by pulling cold, damp crawl space air up through the wall cavities. Adding more insulation to the attic floor does not fix that, because insulation doesn't stop air. Sealing the roof deck and the crawl does.

Post-war and rural houses, 1950s through the 1980s. Farmhouses and brick ranch homes on Rhea County acreage. These almost always have a vented crawl space with fiberglass batts stapled up between the floor joists, and in a lot of them the HVAC ductwork runs down there too. Batts in a crawl are a losing proposition here - they soak up humidity, get heavy, sag out of the joist bays, and end up laying on the dirt. Meanwhile your ducts are moving conditioned air through an unconditioned, humid space.

Lake-era and newer construction, late 1990s to now. Those houses are a different animal - bigger, taller, with vaulted great rooms, cathedral ceilings and bonus rooms built over garages, usually insulated to code minimum with batts on the attic floor. The complaint is always the same: the upstairs won't hold temperature in July, and the bonus room over the garage is unusable. That room has conditioned space on one side and outdoor temperatures on five. Foam on the roof deck brings the attic inside the envelope, so the ductwork up there is no longer sitting in superheated air.

Crawl spaces: no dehumidifier, because the seal is complete

The lake is good for property values and hard on crawl spaces. Warm, moisture-loaded air is the normal condition here from late spring into fall. When that air gets under a Dayton house through foundation vents and meets the cooler surfaces down there, it gives up its moisture. That's what's behind musty air in the hall closet, floors that feel clammy in August, and a wood floor that cups over a few seasons.

Here's where we differ from how most crawl space work gets done in Rhea County: our encapsulation requires no dehumidifier, because the seal is complete. We don't vent the crawl and then run a machine to dry the air we keep letting in. Foundation vents get sealed, the block walls and rim joist get closed-cell foam, and a heavy ground barrier goes down over the dirt. Once outside air has no way in, there's nothing to plug in, nothing drawing power in the corner, and no filter to change. See crawl space encapsulation in Dayton, TN.

Common questions from Dayton homeowners

How far is Dayton from your shop, and do you actually come up here?
Yes, regularly. We're based on Gifford Street in Chattanooga and Dayton is a straight shot north on US-27. Rhea County is normal territory for us, and that goes for Spring City and the lake side too.

My house is one of the old ones near the courthouse. Can you foam it without tearing into the walls?
Usually, yes. On an older house we get the biggest result from the attic and the crawl space, and neither one requires opening up finished walls. If you're already down to studs on a remodel, that's when we'd talk about wall insulation.

Will foam help with the bonus room over my garage?
That's one of the most common calls we get from the newer lake-area houses. Those rooms are surrounded by unconditioned space - garage below, attic above, knee walls on the sides. Foaming the roof deck and the knee wall assemblies puts the whole room inside the sealed envelope instead of hanging outside it.

I've got a pole barn and a metal shop building. Is that different work?
Different building, same principle, and we do a lot of it out here. On metal buildings the first thing foam does is stop condensation from forming on the underside of the panel and dripping on whatever you're storing.

Do I have to take out the old fiberglass first?
Sometimes. If the existing batts are wet, packed with dust or rodent-damaged, they come out before we spray. We handle that ourselves; see insulation removal.