Table of Contents
Introduction
H2: Benefits of AttiCat Blown-In Insulation for Unvented Roofs
H2: How to Properly Install AttiCat Blown-In Insulation in an Unvented Roof
H2: Common Mistakes to Avoid with AttiCat Blown-In Insulation
H2: AttiCat Blown-In Insulation Q&A
Conclusion
Introduction
Unvented roof insulation has emerged as a game-changer in energy-smart home design, sealing heat in during winter and keeping unwanted solar gain out in summer. At the forefront of this innovation is AttiCat Blown-In Insulation—a high-performance fiberglass solution that transforms any attic into a tightly sealed, energy-efficient zone. By eliminating the need for ventilation channels under your roof deck, AttiCat Blown-In Insulation delivers superior thermal comfort, quieter interiors, and lower energy bills. In this article, we’ll explore how this breakthrough product works, why it outperforms other materials, and how to get the best results when installing it in an unvented roof assembly.
H2: Benefits of AttiCat Blown-In Insulation for Unvented Roofs
1. Exceptional Thermal Performance
• High R-Value per Inch: AttiCat’s fiberglass fibers trap air more effectively, delivering an R-value that rivals spray foam without the premium price tag.
• Continuous Coverage: The blown-in application fills every nook and cranny, eliminating thermal bridges and cold spots.
2. Impressive Soundproofing
• Dense, Interlocking Fibers: AttiCat dampens airborne noise—traffic, barking dogs, or echoing bedrooms—creating a more peaceful indoor environment.
• Seamless Air Barrier: By sealing gaps around plumbing stacks, wiring chases, and irregular framing, it minimizes sound transmission between floors.
3. Airtight, Moisture-Resistant Seal
• No Gaps or Seams: Traditional batts often shift or compress, creating drafts. AttiCat expands to lock into place, forming an airtight blanket under the roof deck.
• Mold and Mildew Inhibition: Fiberglass resists moisture absorption, cutting the risk of rot or microbial growth in your roof cavity.
4. Adaptability to Any Space
• Conforms to Irregular Cavities: Rooflines with hips, valleys, vaulted ceilings or legacy framing quirks pose no problem—AttiCat molds itself to fit.
• Ideal for Retrofits: No need to strip out old insulation; simply blow AttiCat on top to upgrade thermal performance.
5. Eco-Friendly and Cost-Effective
• Recycled Content: Made with at least 20% post-consumer glass, AttiCat lowers your carbon footprint.
• Quick Installation: Most attics can be insulated in a single afternoon, saving on labor costs and minimizing disruption.
• Long-Term Savings: Reduced HVAC runtime translates to lower utility bills that soon recoup the initial investment.
H2: How to Properly Install AttiCat Blown-In Insulation in an Unvented Roof
1. Prepare the Attic
• Clear Debris: Remove dust, old insulation scraps, and loose debris.
• Seal Penetrations: Caulk or foam-seal around vents, light fixtures, and wiring penetrations.
• Install Baffles (if required): In some assemblies, small rafter vents must remain open to prevent roof deck condensation—verify local code.
2. Set Up Blowing Equipment
• Position the Blower: Keep the machine outside or near a window to exhaust dust.
• Load the Hopper: Pour AttiCat bags into the feeder, following the manufacturer’s instructions.
• Wear Protection: Use gloves, safety glasses, and a mask designed for fiberglass particles.
3. Blow and Level
• Even Sweeping Motion: Move the hose methodically, targeting 12–16 inches of settled depth to reach about R-49.
• Check Depth: Use depth rulers or marked boards to confirm uniform coverage.
• Avoid Overpacking: Too much insulation can compress fibers, reducing performance.
4. Finish and Inspect
• Trim Excess: If needed, use a utility knife to level piles near eaves or framing.
• Install Vapor Retarder (if specified): In cold climates, a vapor barrier on the warm side may be required.
• Final Air-Leak Check: Turn on attic lights or use smoke pens to detect any remaining drafts.
H2: Common Mistakes to Avoid with AttiCat Blown-In Insulation
• Skipping Air Sealing: Insulation works best when combined with proper caulking around gaps.
• Incorrect Density: Too light means gaps; too heavy crushes fibers. Always follow the bag’s target depth guidance.
• Ignoring Moisture Control: In unvented assemblies, ensure roof sheathing is rated for low‐temperature service and include any specified vapor control layers.
• Overlooking Safety: Always shut off attic power when installing, and watch for hidden wiring or plumbing.
• DIY Overreach: Complex roof geometries or large projects often benefit from professional expertise.
H2: AttiCat Blown-In Insulation Q&A
Q1: Can I install AttiCat Blown-In Insulation on top of existing batts?
A1: Yes. AttiCat can be layered over batts to fill voids and boost R-value, provided the batts are in good condition and properly sealed.
Q2: Will AttiCat settle over time?
A2: Minimal settling occurs if installed at the recommended density. Proper installation ensures long-term performance close to initial R-value.
Q3: How does AttiCat compare to spray foam?
A3: AttiCat offers nearly comparable R-value with superior sound control, lower cost, and easier clean-up—but it lacks the air-seal strength of closed-cell foam at extremely low temperatures.
Conclusion
AttiCat Blown-In Insulation redefines what unvented roof insulation can achieve—combining high R-value, sound dampening, airtight sealing, and eco-friendly credentials in one versatile product. Whether you’re retrofitting an older home or specifying a brand-new unvented roof assembly, AttiCat delivers consistent comfort and year-round energy savings. By following proper installation steps and avoiding common pitfalls, you’ll seal in those savings and enjoy a quieter, cozier attic space for decades to come. Revolutionize your attic comfort today with AttiCat Blown-In Insulation—the ultimate solution for unvented roofs.
