Spray Foam Insulation – Open and Closed Cell

Spray Foam Insulation can be a two-part system typically composed of oil oils, plastic materials, and resins. The polyurethane foam comes in two different forms, open cell and closed cell foam. The polyurethane spray foam is definitely a flexible material which is accessible in a variety of ultimate physical properties and densities. Although the 2 types of foam are incredibly related in their chemical components their characteristics and abilities differ in several ways, that makes it needed for the user to know the dissimilarities of the two materials so he or she can figure out the right foam for their specific application. Find more information about open cell spray foam

The open cell spray foam insulation posesses a denseness of .5lb. every cubic foot. The higher the solidity in the foam the more heavy, or more powerful it can become. This type of kind of polyurethane foam is referred to as “Open Cell” because of the the outdoors of the chemical reaction in the installation method. As soon as the polyurethane foam will be utilized the small cells from the foam are cracked resulting in air to fill up the “open” space within the material, resulting in a smooth or spongy material. The open cell foam bears an R-Worth of 5 to 5.5 every inch (R-Benefit will be the way of measuring thermal resistance, which can be found by determining the percentage in the temp distinction across an insulator and also the heat flux). .5lb. foam products use considerably less material than 2lb. foam products do when completing a similar sized job, making them appealing to somebody worried about conserving the foam material. Mainly because that open cell foam demands much less material, the fee for the project is much less expensive than it would be if you were to utilize closed cell foam. Even though, Open cell foam is undoubtedly an successful and economical product it includes some disadvantages in regards to closed cell foam. One in the open cells drawbacks is it features a reduce R-Valuer per square inches than closed cell foam does and open cell foam is vapor permeable needing it to become covered with a vapor retardant material. Although, open cell foam has some advantages and disadvantages it is recognized as an outstanding insulator, air sealant and audio barrier.

The second type of polyurethane foam is referred to as “closed-cell” or “2 lb foam”. The closed cell foam becomes its name from its specific chemical impulse. Through the set up method the small cells that happen to be developed during the chemical impulse usually are not cracked and are bundled collectively. These tiny cells are loaded with gas allowing the material to go up and become a great insulator. As mentioned previously the better the foams density the heavier, or stronger the foam will become. This particular foam carries a occurrence sufficiently strong enough to boost the structural reliability in the building it is used to. Due to greater density of this material it needs using more material producing a better project price. Some advantages of this foam involves its greater R-Value for every square ” when compared with open cell foam also, this foam is vapor tolerant cutting out an added expense of the vapour retardant material that open cell foam requires and it is able to enhance the architectural dependability from the building it is applied to. One significant downside may be the products exceptionally high expense. The closed-cell foam commonly holds the best R-importance of any insulation material around the market in a worth of 7.5 for every in ..

There are numerous things a home or building owner should take into consideration when thinking about the particular foam that ought to be employed for their certain application. Though both kinds of foam are by far the ideal insulators on the market, every type of polyurethane foam possess its own features and capabilities. It is imperative for that user to recognize which foam is right to them before applying the product.