Tracy Watson – Mission First Realty
Raleigh – Fuquay Varina – Apex – Holly Springs
Insulation is an essential part of your home. Not only does it help keep the home warm during the winter, but it also plays an important part in keeping you cool during the summer. Once you start looking at the different insulation options that are available, though, the whole thing can get a bit confusing. To help you make sense of it all, here are some of the basics you need to know about home insulation.
Insulation works by providing a physical barrier to the transfer of heat through parts of the home such as the walls, ceiling and roof. Depending on the type of insulating material used, it may simply provide a barrier to heat transfer, or it could actually reflect some of the heat back in the direction it came from. In the summer, this means that heat is prevented from entering from outside; in the winter, the insulation stops heat from moving out of the house.
Insulation effectiveness is measured by R-Value. The higher a material’s R-Value is, the more resistant it is to heat penetration. Insulations that have a higher R-Value tend to be thicker or made of denser materials able to resist greater amounts of heat transfer than thinner insulations. Some forms of insulation may have a lower R-Value but are still effective; an example is aerosol can spray foam, which can’t be placed very thick, but seals out air. So keep in mind that R-Value isn’t the only measure of how effective insulation is.
Insulation isn’t exactly a one-size-fits-all product. There are different types of insulation available to meet different needs. Though the specifics of different insulation types may vary, these are the most common types of insulation you’ll see:
You may encounter other types of insulation as well, though they are typically intended for more specialty uses than those listed here.
Even high-quality insulation can’t do much if there are cracks and gaps in your walls or foundation that let air flow in and out freely. Finding and filling cracks with a sealant is an important part of insulating your home. There are different sealants available for this purpose, though spray foam insulation works as both an insulator and an air sealant.