Blow-In Insulation — ApexSeal NY NY NJ CT PA
Blow-In Insulation
Seamless coverage for attics, walls, and hard-to-reach cavities — no gaps, no cold spots.
What Is Blow-In Insulation?
Blown-in insulation — also called loose-fill insulation — is installed using specialized equipment that blows fiberglass or cellulose material into place. It conforms perfectly to irregular spaces, fills around obstructions, and achieves consistent coverage that batts simply can't match in existing construction. ApexSeal NY uses professional-grade blowing equipment and trained crews to deliver precise depth and density on every project in NY, NJ, and CT.
Why Choose This Service
- Fills every gap, crack, and irregular cavity for complete coverage
- Ideal for existing homes — no demolition or drywall removal required
- Achieves higher R-values in attics than batt insulation at lower cost
- Cellulose option is made from recycled content — environmentally responsible
- Fast installation — most attics completed in a single day
- Settles minimally over time when installed at correct density
- Can be added over existing insulation to boost R-value
Our Process & Approach
Depth Calculation
We calculate the required blow depth to achieve your target R-value, accounting for material type, settling factor, and existing insulation levels.
Air Sealing
Before blowing, we seal all attic bypasses — top plates, recessed lights, plumbing chases, and other penetrations. This step is critical for energy performance.
Depth Markers
We install depth rulers throughout the attic so you can verify coverage depth at any time. This also satisfies building inspection requirements.
Machine Setup
Our professional blowing machines are calibrated for the correct material density. Proper density prevents settling and ensures the rated R-value is maintained long-term.
Systematic Coverage
Material is blown in a systematic pattern from the eaves inward, ensuring even distribution and correct depth across the entire attic floor.
Final Depth Verification
We measure depth at multiple points across the attic and provide a certificate of installation confirming the R-value achieved.
Applications & Project Types
Common Questions
What is the difference between blown fiberglass and cellulose?
Blown fiberglass is lighter, moisture-resistant, and non-combustible. Cellulose is made from recycled paper, is treated with fire retardant, and has a slightly higher R-value per inch. Both are excellent options — we can help you choose based on your priorities.
How much R-value can I achieve with blow-in insulation?
In attics, we commonly install R-49 to R-60 depending on code requirements and your energy goals. For existing walls, we typically achieve R-13 to R-15 in a 2x4 cavity.
Will blow-in insulation settle over time?
All loose-fill insulation settles slightly. We account for this by installing to a greater initial depth. When installed at the correct density, long-term R-value loss is minimal.
Can blow-in insulation be installed in finished walls without removing drywall?
Yes. We drill small holes in the exterior siding or interior drywall, blow in the material, and patch the holes. This is called dense-pack installation and is a common retrofit technique.
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