When insulating your home, you can choose from many types of insulation. To choose the best type of insulation, you should first determine the following:
- Where you want or need to install/add insulation
- The recommended R-values for areas you want to insulate.
Installing Insulation
The maximum thermal performance or R-value of insulation is very dependent on proper installation. Homeowners can install some types of insulation — notably blankets, boards, and materials that can be poured in place. (Liquid foam insulation materials can be poured, but they require professional installation). Other types require professional installation.
When hiring a professional certified installer:
- Obtain written cost estimates from several contractors for the R-value you need, and don’t be surprised if quoted prices for a given R-value installation vary by more than a factor of two.
- Ask contractors about their experience in installing the product you are considering. The application can significantly impact the insulation’s performance.
- Ask contractors about their air-sealing services and costs as well, because it’s a good idea to seal air leaks before installing insulation.
To evaluate blanket installation, you can measure batt thickness and check for gaps between batts as well as between batts and framing. In addition, inspect insulation for a tight fit around building components that penetrate the insulation, such as electrical boxes. To evaluate sprayed or blown-in types of insulation, measure the depth of the insulation and check for gaps in coverage.
If you choose to install the insulation yourself, follow the manufacturer’s instructions and safety precautions carefully and check local building and fire codes. Do-it-yourself instructions are available from the fiberglass and mineral wool trade group. The cellulose trade group recommends hiring a professional, but if there isn’t a qualified installer in your area or you feel comfortable taking on the job, you may be able to find guidance from manufacturers.
The table below provides an overview of most available insulation materials, how they are installed, where they’re typically installed, and their advantages.
If you’re ready to install insulation but you’re not prepared to do it by yourself, we would love to help. Call Alamance Insulation and Gutters today to get a free estimate. We are happy to serve many areas in North Carolina, including but not limited to Burlington, Greensboro, Elon, Mebane, Durham, and Raleigh.