Green River – Spray Foam Insulation
Green River installs spray polyurethane foam (SPF) insulation.
Why choose spray foam over more conventional insulation products?
Spray foam insulation is the smart choice, offering a wide range of benefits that no other insulation product can match.
Spray foam insulation is energy-efficient and durable, helping to create a comfortable environment, keeping buildings warm in winter and cool in summer.
SPF insulation is known to resist heat transfer extremely well, and it offers a highly effective solution in reducing unwanted air infiltration through gaps, cracks, seams, and joints.
Because it is sprayed directly into the gaps, cracks, seams, joints, and other surfaces that contribute to energy loss, spray foam both insulates and air seals, offering an easy and effective way of weatherizing existing buildings and new construction.
There simply is no better insulating material!
Benefits of Spray Foam Insulation
- Offers excellent insulating qualities
- Stops air and moisture intrusion
- Increases occupant comfort
- Reduces energy costs
- Strengthens the building structure
- Blocks sound transmission
- Keeps allergens out
Spray Foam Products
Spray polyurethane foam is a spray-applied plastic that can form a continuous insulation and air sealing barrier on walls, roofs, around corners, and on all contoured surfaces. It is made by mixing and reacting unique liquid components at the job site to create foam. The liquids react very quickly when mixed, expanding on contact to create foam that insulates, seals gaps, and can form moisture and vapor barriers.
There are two basic kinds of spray foam-0.5 lb/cubic ft open cell foam and 2.0 lb/cubic ft closed cell foam.
Open cell is a type of foam where the tiny cells are not completely closed. As a result, air fills all of the open space inside the material, making the foam somewhat flexible and sponge-like in appearance.
Closed cell foam insulation is much denser than open cell, with a smaller, more compact cell structure. Its tiny foam cells are closed and packed together, so that it is rigid in appearance. The cells are filled with a gas that helps the foam rise and expand and become a greater insulator. They can be formulated to obtain many characteristics, the most common being size and density.
Which Foam Should You Choose?
When applying spray foam at your home or commercial building, you must first decide whether you will use open cell foam or closed cell foam. This choice can make a big difference in the job cost, application method, and product performance.
The first major factor to consider when selecting which foam type is the actual nature of the foam.
Both open and closed cell spray foam out perform traditional insulation types, providing excellent thermal insulation and sound resistance while also air sealing. Open cell is less expensive because it uses fewer chemicals.
The second major factor to consider when selecting which spray foam type to use is how the characteristics of the foam align with the actual application area and the desired results.
Closed cell foam has a higher R-value per inch, about R-6.8, and can be used to achieve higher insulation levels in shallow wall cavities or other areas with limited available space as a result. Open cell foam has an R-value around R-3.6 per inch.
Although open-cell foam is a good air barrier, it does not block the movement of water vapor. It is most often used for interior walls, attic floors, and the underside of roof decks. It is not recommended for exterior applications like crawlspaces.
Closed cell foam is a very good air barrier and a water vapor barrier. It is often sprayed onto flat roofs to better support traffic and loads. It is also used in crawlspaces or other exterior applications due to its ability to block water vapor movement and its resistance to mold growth. In some humid climate zones, only closed cell type spray foam is used.
Closed cell spray foam is an excellent and versatile insulation. In both new construction and retrofits, it is often sprayed into open wall cavities as a stand-alone insulation. Or it can be sprayed to a thin 1 inch layer to air seal, then the wall cavity filled with fiberglass insulation. This “flash and batt” system is economical and effective.
Contact us today to get our expert advice on which SPF application is right for your project!