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Different Types of Spray Foam Insulation

When it comes to spray foam insulation, there are basically 2 different types of spray foam insulation to choose from: open cell and closed cell. Which one you choose will depend on where you’re installing it and what you’re installing it for. Insulation can be used to keep air in a home or it can be used to create soundproofing. There are many ways you can use spray foam insulation in your home to make it more comfortable for all of the occupants.

What is Spray Foam Insulation

 

Spray foam insulation is made from 2 chemicals that are heated, combined and sprayed out onto a surface using a hose. The chemicals mix together at the tip of the hose, forming a thick paint-like substance that sticks to any surface or object that may be in the way like wires, pipes and ducts. The foam quickly cools and hardens, expanding as it does so to create an even layer of insulation with an air tight seal.

Here are the Different Types of Spray Foam Insulation :

 

Open Cell 

Open cell spray foam insulation is the cheapest type on the market. It is called open cell because the cells that make up the foam don’t completely close. As the foam expands, it traps air in the broken bubbles providing billions of tiny air pockets that act as an insulator. It’s a softer type of insulation because of the broken cells. Water can pass through the insulation because of the broken cells which can be bad depending on how you want to use it. The average insulating power is R-3.5 per inch.

Closed Cell 

Closed cell insulation has billions of cells that are closed and tightly packed together. The insulation is strong an durable. It doesn’t allow water or air to pass through and the bubbles are filled with a gas that is a better insulator than air. Closed cell spray foam has an insulation rating of R-7 per inch.

Installation

Spray foam insulation can be installed by a contractor or by a homeowner. Do it yourself kits are available and contain everything you need to install the foam, however it can be tricky to do correctly and results are rarely as good as when done by a professional.

If you want to install the insulation yourself, consider the flash and batt technique. This involves spraying the wall with a thin layer of closed cell spray foam to create a vapor barrier and then filling in the remaining space with batting. The theory is that the spray foam increases the insulating power of wall and protects the fiberglass insulation from water. This technique also reduces costs and is easier for most industrious homeowners.

If you would like an estimate on professional spray foam insulation, click on the link below.

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