Open-Cell Polyurethane Spray Foam

R-value: 3.5 to 3.6 per inch.

Advantages: Stops movement of air.

Disadvantages: Allows water vapor to pass through, so a moisture barrier is still needed in some situations. Requires professional installation.

Best use: Walls, floors, ceilings.

Closed-Cell Polyurethane Spray Foam

R-value: 6.0 to 6.5 per inch.

Advantages: Stops movement of moisture as well as air.

Disadvantages: Relatively expensive. Requires professional installation.

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Loose-Fill Fiberglass

R-value: 2.2–2.7 per inch.

Advantages: Lightweight enough for attic applications over ½-inch drywall ceilings with framing every 24 inches.

Disadvantages: The product is so fluffy that loose applications may lose up to half their effectiveness at very cold temperatures unless topped by blanket insulation or higher-density loose fill .


Fiberglass Batts and Blankets

R-value: 3.0-4.0 per inch (R-13 for a 2-by-4-framed wall).

Advantages: Standard widths and thicknesses are designed to fit between studs, joists, and rafters. 

Disadvantages:  It compresses easily, which causes it to lose insulating properties.  When improperly installed in spaces, it loses effectiveness — sometimes as much as 50%.

Best use: Walls, floors, ceilings.

Loose-Fill Cellulose Insulation

R-value: 3.2–3.8 per inch.

Advantages: Effective at all temperatures, and can even perform better as the air gets colder. Eliminates cold spots. 

Disadvantages: Too heavy for attic installations; ceiling must have at least 5/8-inch drywall or framing every 16 inches. Over time, it can settle almost 20%, reducing its effectiveness.

Best use: Ceilings, enclosed existing wall or open new wall cavities, unfinished attic floors, other hard to reach places.

RPB HVAC LLC you are concerned on where to buy insulation. Our company also knows that there's more to home comfort then simply putting in heating and cooling systems. As the Building Performance Institute teaches, you need the whole house approach for comfort, safety, and money saving. We take into consideration all aspects of your home for a very reasonable price.. Your family's health, safety, and comfort is out first priority. Taking a whole house approach will help the heart of your home, your heating and cooling system, to operate at optimal levels and insulating your home helps that.