At Alamance Insulation and Gutters, we specialize in providing quality products and expert services to meet the unique needs of our customers. We provide quality gutters and insulation for our clients across central North Carolina, including Greensboro, Burlington, Mebane, Hillsborough, and High Point, NC. Whether you need installation or repairs done, we offer a variety of gutter, insulation, and moisture barrier services that will ensure the safety of your home and the comfort of your loved ones.
A common question we hear in this industry is: what’s the difference between moisture barriers and vapor barriers? The quick answer: they’re basically the same thing. Moisture barriers and vapor barriers are both types of building materials that are meant to stop water from getting past a certain point (a barrier). Typically speaking, “vapor barrier” is more commonly used now. It’s important to note that no vapor barrier is capable of stopping all moisture.
The next question people usually ask about moisture/vapor barriers is the difference in them and air barriers. This does have a distinct purpose, though air barriers are still pretty similar to moisture/vapor barriers. Sometimes vapor barriers are not always a good idea, but air barriers usually are. Just like insulation, air barriers control the movement of air that has moisture in it. This doesn’t fully stop moisture, but instead, allows the moisture to disperse. There are many different materials that make up these barriers, and they provide a self-contained pocket of air to control the movement of thermal energy in and out of a building. Typically, air barriers and vapor barriers will be used together to make a building more energy efficient. This, in turn, will expand the life of a building.
There are many types of vapor barriers, including rigid foam insulation, polyethylene plastic, paints, primers, and aluminum foil blocks. Rigid foam insulation is typically a pretty effective type of vapor barrier, as is polyethylene plastic. Polyethylene plastic has among the least amount of measured moisture permeability.
The development of vapor barriers over time now allows builders to install hardwood floors in places that are regularly damp like basements. Many construction workers recommend vapor barriers; they’re applied to interior walls in climates which are mostly cold, while in hotter climates, they work best when they’re applied to exterior walls. Finished basements usually receive a vapor barrier layer between concrete and the floor, which works to prevent damage from rain or other moisture.
For all your insulation installation and repair needs, or even just to speak to a professional about your insulation needs, contact Alamance Insulation and Gutters today! We can’t wait to work with you.