For the Northern Climate buildings we serve, we recommend the following levels of insulation: R50+ in attics, R15+ in walls, R10+ in basements and crawlspaces. However, you may be surprised how we get there. If you want low heating bills, you have to think outside of the typical home construction box.
We routinely install spray foam, rigid foam board, cellulose, and fiberglass batt and vapor barriers on the same home on the same day. It’s not how much you use, it is how you use it. One project, various types of insulation installed throughout the building envelope. A relatively small contract total, and a very happy customer who offers testimonials.
After air sealing, insulation typically offers the fastest return for heating and cooling savings. It outpaces more expensive measures like windows and heating systems, and not only provides energy savings but can have a huge impact on comfort.