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 is polystyrene. This type of insulation uses deep heat and pressure to mold into shape. It is best used in walls and installing attic insulation. Although it is more expensive than the other two its characteristics makes it a lot stronger and more durable than the others.

The next type of rigid foam board insulation is polystyrene known to most as bead board. This product has beads that expand to make a perfect fit; this characteristic makes it ideal in every day products. The quantity of beads used allows for different thickness. Unfortunately bead spacing allows water absorption.

The third is polyisocyanurate and polyiso foam boards. Because of its strength and durability to withstand extreme temperatures it is ideal when installing attic insulation. It has a wonderful moisture barrier when it’s applied with aluminum foil facing.

Before using rigid foam insulation when installing attic insulation, there are two things to consider, moisture and flame resistance. Because of climate change moisture can escape and be trapped into the walls, causing mold and wood rot. It is highly recommended to use a vapor diffusion retarder. It takes a lot for rigid foam board insulation to ignite but when it does it burns steady. Resistant material like panel, dry wall or gypsum wallboard over top of the insulation is required

Bugs like to make nests in the insulation so if you are insulating basement or floors it is wise to use insecticide treated insulation. Also by placing the insulation on the inside you will discourage bugs.

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.

Rigid foam insulation can be used for many things ranging from coffee mugs to homes. Although it is cheaper than some insulation correct installation is essential to get desired results. If installing the product be sure you know how know all the safety precautions and building regulations for your area.

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