Batt Insulation in
Lawrenceville, GA & Gwinnett County
Cost-effective, code-compliant, and built to last. We install fiberglass and Rockwool batt insulation for new construction, renovations, and sound control throughout Gwinnett County. Every batt cut precisely. Zero gaps. No compression.
Eco Spray Foam LLC · Owner: Rigoberto Vega · 737 Nottingham Dr., Lawrenceville, GA 30046 · (678) 622-5682 · ecosprayfoam1@gmail.com · Gwinnett County’s family-owned insulation contractor since 2020 · ⭐ 5.0 Google rating · Free estimates 7 days a week
FIBERGLASS & ROCKWOOL BATT INSULATION FOR GWINNETT COUNTY HOMES
Batt insulation is the most cost-effective solution for new construction walls, attic floors, and floor cavities. Eco Spray Foam LLC installs both fiberglass batts — the most widely used option in Georgia — and Rockwool (mineral wool) batts, which offer superior fire resistance and sound dampening for garages, party walls, and home theaters.
We serve homeowners, builders, and contractors throughout Lawrenceville, Duluth, Buford, Dacula, Snellville, and all of Gwinnett County. Every installation includes proper air sealing of penetrations before the batts go in — the step most crews skip and the one that matters most.
💡 The Installation Detail That Matters
Fiberglass batts don’t air seal. We foam-seal all electrical boxes, plumbing penetrations, and top plates first. A batt without air sealing is like wearing a sweater with holes in it — the R-value on the bag means nothing if air is flowing freely around it.
GEORGIA R-VALUE REQUIREMENTS — GWINNETT COUNTY
Gwinnett County is in Georgia Climate Zone 3A. These are the current code minimums and our recommendations:
R-Value Reference
Location
2×4 Exterior Walls [CODE MIN]
2×6 Exterior Walls [CODE MIN]
Air Sealing Performance
Floor Over Crawlspace
Attic Floor
Depth
3.5"
5.5"
3.5"
7–9"
10–14"
R-Value
R-13 minimum · R-15 recommended
R-19 minimum · R-21 high-density
R-11 unfaced (sound only)
R-19 to R-30
R-30 to R-38+ (DOE min R-38)
We always recommend R-15 high-density for 2×4 walls when budget allows — same cavity depth, 15% better performance for roughly $50–$150 more on a full home.
Georgia Energy Code Field Guide
DOE Insulation Recommendations
WHERE BATT INSULATION WORKS BEST
🏗️ New Construction Walls
Open framing, easy to inspect, fast to install. The most common and cost-effective application in Gwinnett County new builds.
🔇 Interior Sound Walls
R-11 fiberglass or Rockwool between bedrooms and home offices. Rockwool is the premium choice for maximum sound dampening.
🔨 Additions & Renovations
Room additions and remodels where walls are open. Most economical way to insulate before drywall closes back up.
🏠 Attic Floors & Floor Cavities
R-30 batts between attic floor joists and floor cavities over crawlspaces — straightforward when access is available.
SERVING LAWRENCEVILLE & ALL OF GWINNETT COUNTY
Eco Spray Foam LLC, owned by Rigoberto Vega, has served new construction builders, homeowners, and contractors throughout Gwinnett County since 2020. We show up on time, install without gaps or compression, and document the R-value for inspection. 5.0 Google rating. Minimum job $1,800.
BATT INSULATION FAQ
R-13 minimum for 2×4 exterior walls, R-19 for 2×6 — both per Georgia Climate Zone 3A code. We recommend R-15 for 2×4 walls when budget allows; same cavity, 15% better performance.
$0.80 to $2.60 per square foot installed. Most wall projects run $1,100 to $3,900. Our minimum job size is $1,800. All estimates are completely free — call (678) 622-5682.
Yes. At 3.5" in a standard wall, open cell achieves STC 37–39 vs STC 33–35 for closed cell. The interconnected, porous structure absorbs acoustic energy rather than reflecting it. For any interior sound dampening application, open cell is the clear winner.
Faced batts have a kraft paper vapor retarder — always install with the facing toward the interior in Georgia. Unfaced goes in interior walls and anywhere a separate vapor barrier is already present.
Eco Spray Foam LLC, owned by Rigoberto Vega, 737 Nottingham Dr., Lawrenceville, GA 30046. Installing fiberglass and Rockwool batt insulation across Gwinnett County since 2020. 5.0 Google rating. Call (678) 622-5682 or email ecosprayfoam1@gmail.com — free estimates 7 days a week.
GET A FREE SPRAY FOAM ESTIMATE IN LAWRENCEVILLE, GA
No pressure, no obligation. Just an honest conversation about your home, your budget, and what will actually make a difference on your energy bill. We serve all of Gwinnett County and beyond.