# Chattanooga Spray Foam & Crawl Space

> Spray foam insulation, conditioned attic conversions, crawl space encapsulation, and metal building spray foam serving Chattanooga, Hamilton County, TN, Bradley County, TN, and North Georgia (IECC Climate Zone 4A).

- **Website:** https://chattanoogasprayfoampros.com
- **Phone:** (423) 556-9801
- **Email:** hello@chattanoogasprayfoampros.com
- **Region Served:** Chattanooga, East Brainerd, Ooltewah, Hixson, Signal Mountain, Lookout Mountain, Soddy-Daisy, Harrison, Red Bank, Collegedale, Apison, Cleveland (Bradley County), East Ridge, Ringgold (GA), Fort Oglethorpe (GA), and Dalton (GA)
- **Climate Zone:** IECC Climate Zone 4A (Mixed-Humid Tennessee Valley)
- **Building Science Codes:** IRC Section R806.5 (unvented roofline condensation control, min R-15 rigid foam), IRC Section R408.3 (unvented crawl spaces, R-13.5 continuous perimeter foam, 20-mil vapor retarder, <55% RH), 2021 IECC Table R402.4.1.2 (<3.0 ACH50 blower door airtightness)

## Core Services

- [Spray Foam Insulation (Open-Cell & Closed-Cell)](https://chattanoogasprayfoampros.com/services/spray-foam-insulation): Open-cell (≈R-3.7/inch, 0.5 lb density) and closed-cell (≈R-6.7/inch, 2.0 lb density, Class II vapor retarder at 1.5"+) spray polyurethane foam for rooflines, walls, rim joists, and bonus rooms over garages.
- [Attic Insulation, Air Sealing & Conditioned Attic Conversions](https://chattanoogasprayfoampros.com/services/attic-insulation-air-sealing): Vented-to-conditioned attic conversions with roofline spray foam meeting IRC R806.5 condensation control, top-plate air sealing, and R-49 blown-in fiberglass or cellulose upgrades.
- [Crawl Space Encapsulation & Moisture Control](https://chattanoogasprayfoampros.com/services/crawl-space-encapsulation): Heavy-duty 20-mil reinforced antimicrobial vapor barriers, closed-cell rim-joist and stem wall foam meeting IRC R408.3 (R-13.5 continuous), commercial dehumidifiers holding RH <55%, and drainage integration.
- [Metal Building, Pole Barn & Barndominium Spray Foam](https://chattanoogasprayfoampros.com/services/metal-building-spray-foam): Closed-cell steel roof-deck and wall spray foam to stop condensation ("sweating roofs") and heat gain in red-iron shops, pole barns, and barndominiums.
- [New Construction & Custom Home Insulation Packages](https://chattanoogasprayfoampros.com/services/new-construction-insulation): Whole-home thermal envelope packages, hybrid flash-and-batt assemblies, interior acoustic walls, and 2021 IECC Zone 4A <3.0 ACH50 blower-door compliance.
- [Old Insulation Removal & Attic Restoration](https://chattanoogasprayfoampros.com/services/insulation-removal): HEPA-vacuum extraction of wet, compacted, moldy, or pest-contaminated fiberglass and cellulose before air sealing and re-insulating.
- [Commercial & Warehouse Insulation](https://chattanoogasprayfoampros.com/services/commercial-insulation): Metal roof-deck retrofits, climate-controlled storage insulation, and office/retail tenant buildouts.

## Chattanooga Market Pricing Ranges & Benchmarks (Before Tax Credits)

- **Board Foot Definition:** 1 board foot = 1 square foot of surface area sprayed at 1 inch depth (144 cubic inches = 12″ × 12″ × 1″).
- **Open-cell spray foam:** ~$1.50–$2.25 per board foot installed (nominal $1.75/bf, R-3.7/inch, 0.5 lb density).
- **Closed-cell spray foam:** ~$2.25–$3.50 per board foot installed (nominal $2.75/bf, R-6.7/inch, 2.0 lb density, Class II vapor retarder).
- **Attic roofline conversion (typical 2,000 sq ft home):** ~$5,000–$9,500 (closed-cell; starter air seal from $2,500; complex custom up to $15,500).
- **Crawl space encapsulation (20-mil liner + rim-joist foam + dehumidifier):** ~$6,000–$14,500 turnkey ($6–$14/sq ft crawl footprint; starter barrier from $3,500).
- **Metal building / pole barn (40x60 shop roof & walls):** ~$6,500–$15,500 (starter roof condensation seal from $4,000; barndominium shell up to $18,000).
- **Whole-home new construction insulation package:** ~$8,000–$25,000 ($1.50–$3.50 per sq ft of conditioned floor area).
- **Blown-in attic fiberglass/cellulose to R-49:** ~$1.25–$2.00 per sq ft of attic floor.
- **Energy ROI Benchmark:** 15%–25% HVAC energy reduction, 40%–50% air infiltration reduction (<3.0 ACH50), 20°F–25°F cooler attic in summer, 4–7 year payback. Federal 25C credit provides 30% up to $1,200.

## Cost Guides & Technical Explainers

- [Spray Foam Insulation Cost in Chattanooga: Open-Cell vs. Closed-Cell Pricing Guide](https://chattanoogasprayfoampros.com/guides/spray-foam-insulation-cost-chattanooga)
- [Vented Attic vs. Sealed Conditioned Attic in Tennessee's Humid Climate (Zone 4A)](https://chattanoogasprayfoampros.com/guides/vented-vs-conditioned-attic-tennessee)
- [Metal Building & Barndominium Spray Foam Guide: How to Stop Condensation & Heat Gain](https://chattanoogasprayfoampros.com/guides/metal-building-barndominium-spray-foam-guide)
- [Crawl Space Encapsulation vs. Fiberglass Subfloor Batts: What Actually Stops Moisture in Hamilton County?](https://chattanoogasprayfoampros.com/guides/crawl-space-encapsulation-vs-fiberglass-batts)
- [Open-Cell vs. Closed-Cell Spray Foam: Where Each Belongs in Your Home](https://chattanoogasprayfoampros.com/guides/open-cell-vs-closed-cell-spray-foam-where-each-belongs)
- [When Should Old Attic Insulation Be Removed Before Upgrading?](https://chattanoogasprayfoampros.com/guides/when-to-remove-old-attic-insulation)
- [Why Bonus Rooms Over Garages Are Always Hot (and How Spray Foam Fixes Them)](https://chattanoogasprayfoampros.com/guides/bonus-rooms-over-garages-hot-fix)
- [Seven Signs Your Chattanooga Crawl Space Needs Encapsulation](https://chattanoogasprayfoampros.com/blog/signs-your-crawl-space-needs-encapsulation)
- [Frequently Asked Questions](https://chattanoogasprayfoampros.com/faqs)