Rigid Foam insulation is often used for unfinished buildings and everyday products including installing attic insulation. The beads are shaped under extreme heat and pressure to custom fit. There are three types I will discuss each one and their uses. I will also discuss precautions to take with this insulation. Before long you will have a better knowledge when installing attic insulation

The first one is polyisocyanurate and polyiso foam boards. It is produced to withstand extreme temperatures which make it ideal for installing attic installation and floors. This type of rigid foam insulation has strong stable characteristics for a longer more productive use.

The second type of rigid foam insulation is bead board. It is made in such a way that bead expand to fit, producing a better insulated area. This type of insulation is often found in every day products. Because of the bead spacing moisture is allowed to be absorbed.

The last type of rigid foam board insulation is polystyrene. It too is shaped under intense heat and force. Although it cost more, it works better when installing attic insulation and walls. This is due to its uniformity, effectiveness and moisture resistance.

Word of caution when using rigid foam insulation: due to changing temperatures these types of insulation absorb and retain moisture. You can reduce these problems by using a vapor diffusion retarder. Especially when installing attic insulation.

Bugs often use rigid foam board insulation as a home it's recommended to use an insecticide treated product when doing floors and basement walls. Applying insulation on the interior walls also helps with reducing bugs. If you install on the interior you need a vapor diffusion retarder.

Next we will discuss flame resistance and sunlight damage. Although it takes a lot to burn when the rigid foam board insulation begins it will burn steady. It is required to use a fire resistant material like gypsum wall board, panel or dry wall over top the insulation. If you are installing attic insulation you need to protect the insulation with roofing felt, tar, asphalt, rubberized paint or acrylic silicone.

Of the three types of insulation; loose fill, batt and blanket and rigid foam board insulation this type has the cheapest initial start up cost. Although it can be used for many things, this product will be counter productive if installed wrong or safety precautions are not correctly taken. Before you begin installing attic insulation please read safety precautions carefully check with local building code regulations.

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