3-1/2x16 R11 B81EV UN 170sf
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R-11 Unfaced Fiberglass Insulation Batt (3.5 in. x 15 in. x 93 in.) – 170 sq. ft.
Enhance your home’s energy efficiency and acoustic comfort with this R-11 Unfaced Fiberglass Insulation. Engineered for use in standard 2x4 wood-framed construction, these batts provide reliable thermal resistance and sound dampening for interior walls, floors, and ceilings.
Key Specifications
| Feature | Details |
|---|---|
| R-Value | R-11 (Standard thermal resistance for 2x4 framing) |
| Thickness | 3-1/2 inches |
| Width | 15 inches (Designed for 16" on-center spacing) |
| Coverage | 170 square feet per package |
| Type | Unfaced (No vapor retarder) |
Product Features
Effective Thermal Performance: Helps maintain consistent indoor temperatures and reduces energy costs by preventing heat loss/gain.
Acoustic Control: Excellent sound absorption properties make it ideal for dampening noise between rooms (e.g., home offices, laundry rooms, or bathrooms).
Unfaced Design: Perfect for applications where a vapor barrier is already present or not required, allowing for maximum breathability in specific climate zones.
Simple Installation: Lightweight and pre-cut to fit standard 16" on-center stud bays. Can be easily trimmed with a utility knife to fit custom spaces.
Fire Resistant: Fiberglass is naturally non-combustible, adding an extra layer of safety to your structure.
Ideal Applications
Interior Walls: For soundproofing and thermal breaks between rooms.
Floors & Ceilings: To manage temperature transfer between levels.
Multi-Family Housing: Common for shared wall assemblies to meet building codes.
Pro Tip: When installing unfaced insulation, ensure a "friction fit" by pressing the batt firmly into the cavity. It should stay in place without the need for staples or fasteners. Always wear gloves, long sleeves, and a mask during installation to avoid skin and respiratory irritation.