R49 Insulation | Insulation

Explore our premium selection of R-49 insulation batts, designed to deliver superior thermal performance for attics, ceilings, and other high-demand areas. Whether you're upgrading your home for greater energy efficiency or tackling a new build, our R-49 kraft-faced and unfaced fiberglass insulation options from trusted brands like Knauf and Owens Corning provide the perfect solution. With excellent R-value, sound control, and moisture resistance, these batts help reduce heat loss, lower energy bills, and enhance indoor comfort year-round. Choose from multiple sizes to suit your project needs.

What is R-49 Insulation?

R-49 insulation refers to materials that provide a thermal resistance rating of R-49, making them highly effective at reducing heat transfer in residential and commercial buildings. Commonly used in attics and ceilings, R-49 insulation—such as Owens Corning EcoTouch kraft-faced fiberglass batts- helps meet or exceed building code requirements for colder climates or homes seeking superior energy efficiency. This high R-value is ideal for areas where insulation depth is not limited and maximum performance is required.

Knauf Ecobatt R-49 Kraft Faced Fiberglass Insulation Batts 

Achieve premium thermal performance with Knauf Ecobatt R-49 Kraft Faced Fiberglass Insulation Batts. Engineered for high-efficiency thermal resistance, these batts are ideal for attic floors and ceiling applications in both residential and commercial builds. The Kraft facing provides a built-in vapour retarder to manage moisture, making installation faster and safer. Manufactured with ECOSE® Technology, these batts are formaldehyde-free and made from sustainable, plant-based materials, delivering comfort, efficiency, and environmental peace of mind.

Knauf Ecobatt R-49 Unfaced Fiberglass Insulation Batts 

For projects that require versatility and outstanding thermal protection, Knauf Ecobatt R-49 Unfaced Fiberglass Insulation Batts are a reliable choice. Suitable for ceilings, attics, and walls where a separate vapour barrier is used or not needed, these unfaced batts are made with Knauf’s revolutionary ECOSE® Technology, minimizing environmental impact while maximising comfort. They offer superior noise reduction and energy savings while being easy to cut, handle, and install, making them perfect for DIYers and pros alike.

Owens Corning EcoTouch R-49 Kraft Faced Fiberglass Insulation Batts 

Designed for maximum efficiency in attics and ceilings, the Owens Corning EcoTouch R-49 Kraft Faced Fiberglass Batts provide high R-value insulation in a single layer. These batts come with a kraft facing that functions as a built-in vapour barrier to help control moisture movement. EcoTouch insulation is GREENGUARD Gold Certified for indoor air quality and features a soft-to-touch feel with excellent recovery and handling. It’s a smart, sustainable solution backed by a leading name in insulation.

Owens Corning R-49 Unfaced Fiberglass Insulation Batts 

If you need powerful insulation without an integrated vapour barrier, the Owens Corning R-49 Unfaced Fiberglass Insulation Batts deliver exceptional thermal resistance for attic and ceiling installations. These batts offer the same high R-49 value and acoustic benefits as their kraft-faced counterparts but allow flexibility when a separate vapour retarder or open cavity system is in place. Manufactured from high-quality fiberglass with no added formaldehyde, they’re ideal for energy-efficient, healthy building projects.

Why Choose R‑49 Insulation?

• Superior thermal resistance provides exceptional protection in extreme temperature ranges
• Balanced year‑round comfort: retains warmth in winter, blocks heat in summer
• Reduces heating and cooling bills by enhancing overall home energy efficiency

Benefits of R-49 Insulation

• Superior Thermal Performance: Significantly reduces energy loss, improving heating and cooling efficiency year-round.
• Energy Savings: Lowers utility bills by helping HVAC systems run more efficiently.
• Moisture Control: Kraft-faced variants help manage vapour diffusion, reducing condensation risks.
• Enhanced Comfort: Minimises temperature fluctuations, cold spots, and drafts.
• Noise Reduction: Offers excellent soundproofing between floors and rooms.
• Fire-Resistant: Made from non-combustible fiberglass, improving building safety.
• Sustainable Choice: Many products, like Owens Corning EcoTouch, are GREENGUARD Gold certified for indoor air quality.

Applications of R-49 Insulation

• Attics – Ideal for unconditioned spaces above living areas, where depth allows for thick insulation.
• Ceilings – Used between joists in ceilings, separating heated and unheated areas.
• Commercial Roofs – Effective in drop ceilings or under low-slope roofing systems.
• Retrofit Projects – Upgrading older homes to improve compliance with modern energy standards.
• Cold Climate Zones – Especially useful in northern states or high-altitude regions where heat retention is vital.

Installation Tips

• Measure Depth: Ensure you have at least 14–16 inches of space for full R-49 performance.
• Unpack Gently: Allow batts to expand fully before installation for accurate coverage.
• Vapour Barrier Facing: Install kraft-facing toward the warm side of the building envelope.
• Maintain Ventilation: Use baffles or rafter vents to allow airflow in attics.
• Safety First: Wear gloves, goggles, and a mask when handling fiberglass insulation.
• Secure Fit: Staple kraft-faced edges or friction-fit batts snugly between joists to avoid gaps or sagging.

Why Choose Roofing4US?

• Extensive Product Range: Choose from trusted brands like Owens Corning and Johns Manville.
• Fast, Reliable Delivery: Nationwide shipping with quick turnaround times.
• Expert Support: Knowledgeable customer service to assist with product selection and usage.
• Competitive Pricing: Great deals on bulk orders and ongoing seasonal offers.
• Contractor & DIY Friendly: Products suitable for both professionals and homeowners tackling insulation upgrades.