Insulation is vital to keeping your home energy-efficient. When comparing different options, consider their R-Value, which shows how well the material prevents heat from traveling through. The higher the R-Value, the more effective the product is at keeping heat in and cold out. Most homes in Alaska require insulation with R-Values of at least 49. Here are a few options that fit the bill. 

Which Insulating Materials Work for Homes in Alaska?

1. Polyurethane Board 

This is a rigid type of insulation made from a core of open- or closed-cell foam encased by several types of materials, including gypsum, fiberglass, or metal.

With one of the highest R-Values available, polyurethane board is becoming popular for green buildings. It’s a versatile material that works for different areas, such as roofs, walls, and floors, and offers exceptional fire resistance. It’s more expensive than other types of insulation, but can last up to 50 years. 

2. Open- or Closed-Cell Foam

Spray-in foam insulation is an increasingly popular choice in Alaska thanks to its exceptional ability to reduce heat loss. The terms open or closed foam refer to the bubbles, or cells, that comprise the foam. Open-cell insulation is flexible and soft because its cells are filled with air. Closed-foam varieties have cells that are tightly packed, creating more rigid materials.

Although open-foam tends to be more affordable and will fill all crevices, closed-foam has a higher R-Value because it’s denser.

3. Polystyrene Board

Similar to polyurethane board, this type of insulation consists of rigid sheets. Instead of a foam core, however, it uses either foam beads that are fused together or molten material that is pressed into sheets.

One of the most affordable types of board insulation, polystyrene offers a high R-Value, but it’s also more susceptible to mold and mildew than other insulating boards. 

4. Foil-Faced Insulation

This reduces heat loss via a reflective surface. Rather than escaping through the roof, heat bounces off the foil and back into the space.

An affordable option, this is also effective for blocking pests from your home. It is a combustible material, though, so it should only be used in non-exposed areas to ensure code compliance. 

Keep your home comfortable and energy-efficient all year with new insulation from American Roofing in Anchorage, AK. They will assess your roof and attic to provide the best solution for your needs. They get the job done right the first time, helping you reap maximum energy savings. Visit their website to learn more about their services, or call (907) 345-8700 to schedule an estimate.