Spray Foam Insulation: Superior Performance & Moisture Protection

Spray foam does more than insulate — it air seals, acts as a moisture barrier, and adds structural rigidity. Mattra installs closed cell and open cell spray foam in Maine homes using Genyk Elite 2.0 for premium, long-lasting performance.

Get a Spray Foam Estimate Call (207) 777-6020
Efficiency Maine Registered Vendor Genyk Elite 2.0 Installer 30+ Years Serving Maine

Spray Foam Insulation Maine: Closed Cell & Open Cell Installation for Attics, Basements & Crawl Spaces

Maine Homeowners May Qualify for Rebates on Spray Foam Insulation

Spray foam insulation projects may qualify for Efficiency Maine rebates — potentially reducing your out-of-pocket cost significantly. As an Efficiency Maine registered vendor, Mattra handles the rebate process for you from start to finish.

  • Efficiency Maine rebates available for qualifying projects
  • We handle the paperwork and rebate submission
  • One team: assessment, installation, and rebate processing
See If You Qualify Financing & Rebates
Professional spray foam insulation installation in a Maine home
Know the Difference

Spray Foam Is Not Blown-In. Here's Why That Matters.

One of the most common misconceptions in home insulation is that spray foam and blown-in insulation are the same product — just applied differently. They're not.

Blown-in insulation (cellulose or fiberglass) fills cavities with loose material. It insulates, but it doesn't seal. Spray foam expands to fill every crack and gap, creating a continuous air seal and — in the case of closed cell foam — a vapor barrier as well.

If your goal is to stop air infiltration, control moisture, and maximize energy performance, spray foam is a fundamentally different product. The right choice for your home depends on the application, your budget, and your performance goals. We'll help you decide.

Learn About Blown-In Insulation
Product Comparison

Two Types of Spray Foam. Different Applications.

Closed Cell Specifications

  • R-value: ~R-6.5 per inch
  • Air barrier + vapor barrier in one application
  • Adds structural rigidity to walls and rooflines
  • Dense, rigid cell structure
  • Product: Genyk Elite 2.0

Closed Cell Spray Foam

Closed cell spray foam has a dense, rigid cell structure that delivers the highest R-value per inch of any insulation material (~R-6.5/inch). It acts as both an air barrier and a vapor barrier, and it adds structural rigidity to walls and rooflines.

Best for: Attics, basement rim joists, exterior walls, crawl spaces

Open Cell Specifications

  • R-value: ~R-3.7 per inch
  • Excellent air barrier at lower cost
  • Effective sound dampening between spaces
  • Softer, more flexible cell structure
  • Lower cost per square foot than closed cell

Open Cell Spray Foam

Open cell spray foam has a softer, more flexible structure with a lower R-value (~R-3.7/inch). It's an excellent air barrier at a lower cost than closed cell and provides effective sound dampening between living spaces.

Best for: Interior walls, attic undersides where vapor barrier isn't required

Genyk Elite 2.0 Highlights

  • Premium closed cell spray foam
  • Formulated in Canada for cold climates
  • Minimal off-gassing
  • Strong environmental profile
  • Meets Efficiency Maine rebate requirements

Genyk Elite 2.0

Mattra installs Genyk Elite 2.0 — a premium closed cell spray foam formulated in Canada with industry-leading performance, minimal off-gassing, and a strong environmental profile.

Genyk Elite 2.0 meets Efficiency Maine rebate program requirements and delivers consistent results in Maine's demanding climate.

Applications

Spray Foam Applications in Maine Homes

Attic Spray Foam

Spray foam on attic roof decks creates a fully conditioned attic space — eliminating the temperature swings, ice dams, and moisture accumulation that cause mold and energy loss in Maine winters.

Attic Insulation →

Basement & Rim Joists

Closed cell spray foam on basement walls and rim joists stops moisture infiltration and dramatically reduces heat loss at one of the most vulnerable points in a home's thermal envelope.

Basement Insulation →

Crawl Space

Spray foam encapsulation in crawl spaces stops soil moisture from entering the living space, protecting your home from mold growth, wood rot, and insulation degradation.

Crawl Space Encapsulation →

Walls & New Construction

For wall cavities — in new construction or during renovation — spray foam provides a complete air seal that fiberglass batts simply can't match.

Wall Insulation →
Our Process

What to Expect from Your Spray Foam Installation

1

Home Assessment

We evaluate your home to determine the right foam type (open or closed cell), coverage area, and required thickness to meet your R-value targets and air sealing goals. We'll also identify any moisture issues that need addressing before installation.

2

Preparation

The area is cleared and protected before application begins. Spray foam adheres permanently to surfaces, so thorough prep work ensures a clean, accurate installation.

3

Application

Our certified installers apply spray foam in measured passes, allowing each layer to fully expand and cure. Coverage is checked against specs at each stage to ensure the target R-value is achieved.

4

Trim, Inspection & Rebate Documentation

Excess foam is trimmed flush with framing. We perform a final inspection and provide all documentation needed for your Efficiency Maine rebate submission.

Learn About Efficiency Maine Rebates
FAQ

Common Questions About Spray Foam Insulation

Spray foam insulation cost varies based on square footage, foam type, and thickness required. Closed cell is more expensive per board foot but delivers higher R-value and moisture protection. Efficiency Maine rebates can significantly offset the cost. Contact us for a specific quote.

Closed cell is denser, provides ~R-6.5 per inch, and acts as a vapor barrier — ideal for areas exposed to moisture. Open cell provides ~R-3.7 per inch at a lower cost and is better suited for interior applications and sound control. We'll recommend the right type based on where it's going and what you're trying to solve.

Yes — spray foam insulation projects may qualify for Efficiency Maine rebates when installed by a registered vendor. Mattra is a registered Efficiency Maine vendor and handles all rebate paperwork for our customers.

Financing & Rebates Details →

Properly installed spray foam is extremely durable and can last the lifetime of the building. It doesn't settle, sag, or absorb moisture like fiberglass batts — making it particularly well-suited to Maine's climate.

Closed cell spray foam acts as a moisture barrier and does not support mold growth. Open cell foam can absorb water if exposed to sustained moisture — which is why we assess moisture conditions before every installation. If existing mold is present, we address it before insulating.

Mold Remediation Services →
Why Mattra

Mattra Installs Spray Foam Across Central Maine

From Lewiston and Auburn to Brunswick, Topsham, and Lisbon Falls — Mattra's certified installers have been improving energy performance and moisture control in Maine homes for over 30 years.

  • Efficiency Maine registered vendor
  • Genyk Elite 2.0 — premium closed cell spray foam
  • Open and closed cell applications
  • Attics, basements, crawl spaces, rim joists, and walls
  • IICRC certified — moisture and mold awareness on every project

Dealing with mold or moisture alongside your insulation project? We handle both from the same team.

Mold Remediation Services

Get a Spray Foam Estimate for Your Maine Home

Spray foam is a long-term investment in your home's comfort, efficiency, and structural health. Let us evaluate your situation and tell you exactly what it would take — and what Efficiency Maine rebates may cover.

Get a Spray Foam Estimate Call (207) 777-6020

Mattra Inc. · 68 Whipple St, Lewiston ME 04240
(207) 777-6020 · info@mattrainc.com

Questions? Call (207) 777-6020 or email info@mattrainc.com