Sealing things up 0
Now booking across Northwest Arkansas, first pick of scheduling ·  (479) 336-6800
(479) 336-6800 Free Estimate
Spray Foam Blown-In Attic Crawl Space Air Sealing Batt Insulation Insulation Types Service Area About Get a FREE estimate (479) 336-6800

Four options.
One answer.

There is no single best insulation for every home. Answer three questions and we’ll point you at the option that usually fits, then confirm it in person, free.

  • SPFA & ICAA certified
  • Licensed & Insured
  • R-38 ceilings
  • R-13 walls

Which type do I need?

Three questions, sixty seconds.

Which part of the house?
What is going on?
New build or existing home?

Question 1 of 3

What the Heck
Is R-Value?

Think of R-value as your home’s insulation score. The higher the R-value, the better your insulation resists heat flow, helping keep warmth inside during the winter and outside during the summer. Simply put, a higher R-value means better insulating power, which can help your home stay more comfortable and energy efficient year-round.

Pick a material

R-7.0 5.4″ to hit R-38

Bar is R-value per inch, scaled against closed-cell at R-7.0.

Four contenders, one ring.

What each one actually is, and how they stack up side by side. The bar under each name is R-value per inch, drawn to scale.

Comparison Champ on R-value Closed-cell foam at the rim joist of an encapsulated crawl space Closed-Cell Spray Foam R-7.0/inch Spray foam filling a wall cavity between studs Open-Cell Spray Foam R-3.8/inch Blown-in insulation over an attic floor Blown-In Insulation R-3.5/inch Batt insulation cut tight into stud bays Batt Insulation R-3.4/inch
What it is High-density expanding polyurethane that cures into a rock-solid, completely impermeable barrier. Medium-density foam with breathable open cells that expands up to 100× to wrap around studs. Loose fiberglass or cellulose blown pneumatically onto attic floors and hard-to-reach cavities. Pre-cut fiberglass or rockwool rolls sized to sit between standard wood framing.
Best for Crawl spaces, rim joists, where space is limited or moisture is a concern. Walls, many attics, cost-effective air sealing. Attic floors, topping up thin or settled insulation. New construction walls, floors, vented attic assemblies.
Resists moisture Yes, vapour barrier at 2″ No No No
Air seals Yes Yes No No
Relative cost Highest Medium-high Cost-effective Cost-effective
Details Spray Foam → Spray Foam → Blown-In Attic → Batt Insulation →

Swipe the table sideways

Local building codes across Benton and Washington counties recommend a minimum of R-38 for ceilings and R-13 for exterior walls.

Open-cell or
closed-cell?

What gets through a 3.5″ wall cavity Open-cell: air stops, sound dies, vapour still moves.
Cross-section of a wall cavity filled with open-cell foam: air is blocked, sound is absorbed, water vapour passes through to the inside. AIR STOPPED VAPOUR PASSES SOUND SOAKED UP OUTSIDE INSIDE 3.5″ STUD CAVITY

Where it goes

  • Roof decks
  • Attics
  • Interior walls
  • Sound-proofing
  • Vented assemblies

By the numbers Open-cell

  • R-value per inch R-3.8
  • Density per cubic foot 0.5 lb
  • Expansion off the gun 100×
  • Moisture resistance Low
  • Sound absorption Best
  • Cost per board foot $$

This foam Closed-cell

Cheap depth, dead-quiet rooms and a full air seal, as long as the assembly is allowed to dry inward.

Everything you’d
want to ask.

Still stuck? Ask the crew at your walkthrough, that is what it is for.

Call (479) 336-6800
FOAMiE, the gnome who knows foam, giving a thumbs up, here to help you seal smarter and save more

It depends on the assembly. Attic floor, roof deck, wall cavity and crawl space each have a different right answer. Most Northwest Arkansas homes end up with a combination.

No. Foam wins on R-value per inch and air sealing. Where you have unlimited depth, a vented attic floor, blown-in gets the same performance for less.

Closed-cell is denser, rigid, roughly R-7.0 per inch and a vapour barrier at 2 inches. Open-cell is lighter, breathable, about R-3.8 per inch, better on sound and costs less.

Usually yes. Insulation slows heat. Sealing stops air. Batt and blown-in do not seal, so the leaks have to be handled separately. See what air sealing covers →

Benton and Washington county codes look for a minimum of R-38 at the ceiling and R-13 in exterior walls. We measure what is actually up there before quoting, most homes we open up are well under both.

Be first in line.

No pressure. No upsells. Usually under 1 hour. We measure, we show you what we find, and you get it in writing.

  1. 01

    You send the form

    Thirty seconds. Name, town, and what is bugging you.

  2. 02

    We get in touch

    Fast reply from a real person who can get your appointment set up.

  3. 03

    Under 1 hour on site

    We measure, show you what we find, and hand you the price in writing.

  • SPFA certified
  • ICAA certified
  • Financing available
  • Same-day estimates
Tell us about the job
Bentonville area
Rogers / Springdale
Fayetteville & Madison

We seal today.
You save tomorrow.

FREE estimates anywhere from Bella Vista to Winslow. Same-day estimates, financing available, and nothing you did not ask for.

Get my FREE estimate Or call us(479) 336-6800
FOAMiE, the gnome who knows home