How insulation works is expressed by its R-value, which is the measure of resistance to the flow of heat. The higher the R-value, the better insulation insulates per inch of thickness. Read on to find some general guidelines for how much insulation you need, as well as the R-value for different types of insulation. Read in full.

Nicole asks, When finishing an attic, which way should I face the insulation, or should I use nothing at all?

Since both the attic above and room below will be heated, you can use unfaced insulation without a vapor barrier or no insulation at all. Read on to find out more. Read in full.

Providing proper ventilation in your attic will keep your attic cooler in the summer, which can lower your air conditioner bills and make your roof last longer, and reduce condensation during the winter, which can lead to mold, mildew, or rot. Watch this video to find out more. Watch this video.

If you’re planning to add an attic room or a room above a garage, consider a vaulted ceiling to provide more headroom and a feeling of space. Rather than bringing the ceiling to a point, flatten it out at the peak to provide room for wiring and ductwork. Watch this video to find out more. Watch this video.

Storage space in attics is usually limited to the small floored area. By adding shelves that are supported by 2x4 brackets attached to the rafters, you can expand your usable attic storage space. Watch this video to find out more.

Glen asks, “Can I install a plastic sheet over the existing insulation under the crawl space of my house without causing mold to the insulation?”

A better approach would be to limit the ventilation in your crawl space during the winter, and cover the ground with plastic to reduce the moisture level under your home. Read on to find out more. Read in full.

Since up to 70% of the energy used in the home goes for heating and cooling, it’s important to be sure you have enough insulation. A simple test is to look in your attic. If you can see the top of the ceiling joists, then you need more insulation. Insulation comes in rolls you can install yourself, or it can be blown into the attic. Watch this video.

Mary asks, “ We live in an older home that is raised off the ground with a crawlspace. In the past few years, the hardwood flooring in several rooms has started to warp and cup. What could be the problem?”

It sounds like you may have excessive moisture and humidity in the crawlspace under your home. Read on to find out how to correct the problem. Read in full.

Rod asks, “I recently added faced fiberglass insulation to my attic. Since then I noted you stipulated unfaced insulation for the attic if you already have a layer of insulation. What should I do?”

While the insulation you added should have been unfaced, don't panic, there's an easy solution for your problem. Read on to find out more. Read in full.