Spray Foam Insulation Services

Spray foam goes on as a liquid, expands in seconds and hardens where it lands. It insulates and seals air leaks in one pass, so heat, humidity, dust and pollen can’t slip through the gaps that batts and blown-in leave behind. In North Texas, where the hard part of the year is keeping summer heat and humidity out, that seal does most of the work.

What spray foam does that batts and blown-in can’t

Fiberglass and cellulose slow heat, but air moves right through them. Spray foam stops the air too. That matters in three places we see every week around Dallas–Fort Worth:

• Attics with ductwork in them. Almost every DFW home has its air handler and ducts in the attic. Foam on the underside of the roof deck brings the attic inside the house, so the ducts sit in air near room temperature instead of 130°F.
• Metal buildings that sweat. Humid air hitting cold steel condenses and drips. Closed cell foam bonds to the panels and keeps that air off the steel for good.
• Odd framing. Purlins, girts, rafters at every angle, rim joists and wiring all get a continuous coat with no gaps to fill by hand.

Open cell or closed cell

Both are polyurethane foam. The difference is density. Open cell is soft and light, expands a lot and is the economical way to fill a deep cavity. Closed cell is dense and rigid, gives almost twice the R-value per inch and blocks moisture, which is why it belongs on steel.

In short, we use open cell foam under most home roof decks and inside interior walls, and closed cell foam on metal buildings, barndominiums, shops, crawl spaces and anywhere moisture is the problem.

How thick, and what you get

These are the thicknesses we quote most. Your written quote spells out the foam, thickness and R-value for every surface.

Where	Foam	Thickness	About
Home attic, under the roof deck	Open cell	5.5″ to 7″	R-20 to R-25
2×4 walls, new construction	Open cell	3.5″	R-13
2×6 walls, new construction	Open cell	5.5″	R-20
Metal building or barndo walls	Closed cell	1.5″ to 2″	R-10 to R-13
Metal roof on a shop or barndo	Closed cell	2″ to 3″	R-13 to R-20
Crawl space, under the subfloor	Closed cell	2″	R-13

Where we spray

For houses, that means attics, new construction before the drywall goes up, and crawl spaces under pier-and-beam floors. If the old attic insulation is dirty or full of droppings, we vacuum it out first.

For buildings, it means metal buildings, barndominiums, shops and garages, pole barns and commercial space from warehouses to churches.

How a job runs

1. 1

   We measure

   A free visit to measure, check the roof deck or steel, and look for leaks, wiring and venting that need attention first.

2. 2

   You get a written price

   Foam type, thickness, R-value, square footage and price in writing, usually within 24 hours.

3. 3

   We prep and spray

   We cover floors, windows and equipment, then spray in one or two days for most homes, shops and barndos.

4. 4

   Walkthrough

   We check thickness with you, clean up and leave you the job sheet with what was installed where.

Spray foam questions

Is spray foam worth it in Texas?

For most attics with ductwork in them, and for any metal building that sweats, yes. Foam stops the air leaks that drive summer cooling bills and keeps ducts out of a 130°F attic. Where it pays off less is a vented attic with no ducts, where a thick layer of blown-in on the attic floor can be the better value. We will tell you which one fits your house.

Does spray foam rot the roof deck?

Not when the job is done right. With open cell under the deck, a roof leak shows up inside instead of hiding, so you can fix it. The other key is humidity: once the attic is sealed, the air conditioner has to be sized for the tighter house so it runs long enough to dry the air. We look at the HVAC setup before we quote.

Is spray foam safe once it cures?

Cured foam is inert. The spraying itself is the part that needs care: we seal off the work area, run ventilation, and ask everyone, pets included, to stay out for about 24 hours or longer if the foam maker’s instructions say so. You may notice a faint smell for a day or two after that.

How long does spray foam last?

For the life of the building, unless it gets cut out or damaged. It doesn’t settle or sag like batts and blown-in, so the R-value you pay for on day one is the R-value you have years later.

Can you spray foam over the old insulation?

Foam has to go on a clean surface, so it never goes over batts or blown-in. In an attic, the foam goes on the roof deck and the old insulation on the attic floor can stay or come out. If it is matted, wet or full of droppings, we recommend removing it first.