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The Different Kinds of Attic Insulation and their R-Values

Attic insulation is an integral part of your home’s interior since it allows your home to remain comfortable by preventing excess heat and cold from entering your living area. When it comes time to replace your old insulation, some homeowners struggle because they don’t know what to look for when choosing an attic insulation. According to experts, however, you need only look for the material’s R-value when trying to choose.

Here, the siding and insulation professionals of DryTech Roofing LLC discuss the different kinds of attic insulation you can consider and their R-values.

Blanket Insulation

The easiest variant of insulation to install, blanket insulation often comes in batts and rolls made of fiberglass, mineral wool and plastic or natural fibers. This kind of insulation is ideal for attics that have standard spaced beams and joints with very little obstruction. Its R-value often ranges from 3.1 to 3.8 per inch.

Loose-fill Insulation

On the other hand, if your attic has very little headroom and has multiple obstructions, like vents and cross-beams, loose-fill insulation is the material of choice for you. This is because unlike blanket insulation, it can simply be blown over the existing insulation and is available in cellulose, fiberglass or mineral wool. According to insulation and siding professionals, cellulose is the most effective material due to its R-value of 2.2 to 3.8 per inch.

Sprayed Foam Insulation

If you don’t mind spending a little extra on your insulation, then consider choosing sprayed foam insulation. This material is often touted as the best insulation material as it boasts the highest R-values at 3.5 per inch for open-cell sprayed foam insulation and 6.5 for closed cell, allowing you to insulate your home in a more efficient manner.

Need to add new insulation to your home? Simply turn to the experts of DryTech Roofing LLC, your leading service providers when it comes to attic insulation and vinyl siding installation projects. Give us a call at (240) 491-5600 or fill out our contact form to request an appointment. We serve homeowners in Maryland and other nearby areas.