Choosing the Right Attic Insulation For Your Home

Choosing the Right Attic Insulation For Your Home

With so many completely new types of insulation currently available, how does one make a decision what's the most practical and high efficiency product or technique? We have compiled these details concerning types of insulation, how they function and where/when to employ them.

First, let's get a fast idea of how warmth is shifted in or from our property. To best understand this, we think about one of the items in the principles of thermodynamics that is - heat has a tendency to move toward cooler air in order to equalize the energy system. During cooler winter months we run our furnace to deliver heat inside our house. This heat takes over the less hot air inside the house and also is absorbed by the building materials that make up our household. Sooner or later this heat pushes its way through the walls and the roofing to escape to the cooler air outdoors. This occurs in the same fashion during the warm weather but since we are chilling our house inside, the heat energy from outside is always trying to force its way in.

Now we will start working on the varieties of spray foam attic insulation that are widely-used to prevent warmth transfer.

Fiberglass batt insulation is one of the most common insulations used in house construction due to a few factors. It's a very affordable and reasonably effective product for resisting warmth transfer. Keep in mind that fiberglass batts are "mass" insulation and therefore it uses its thickness and denseness to decrease warmth transfer, but at some point the heat will transfer completely through to the cooler side. The effectiveness of fiberglass insulation is assessed in R-Value which simply explains the Thermal Resistance of the product. The better the R-Value number is, the longer it will take heat to transfer through it.

Cellulose insulation which is frequently called "blow-in" insulation is another "mass" insulation. It's usually manufactured of recycled materials such as paper, cardboard and cotton. It's a loosely packed materials that is "blown" into your attic using a unique machine. The R-value is determined by how thick the insulation is blown onto your attic floor area. Usually, it needs to be installed very thick to attain high r-values. Once again, this product's composition is designed to absorb or reduce warmth transfer but the warmth will eventually escape.

Radiant Barrier Foil is a different approach to attic insulation and works in a completely different way than fiberglass and cellulose insulation. It's not a "mass" insulation so it's not designed to absorb or slow heat transfer. Therefore it has no R-Value. It utilizes reflective properties to re-direct heat back towards its source.

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