The 20th Century Construction—Insulation

20th Century uses JM FORMALDEHYDE-FREE™ FIBER GLASS INSULATION. JM Spider custom insulation is a spray-in fiberglass isulation. It fills framing cavities completely, leaving no gaps or voids, which results in superior thermal performance and sound control. The system uses fiber glass with 25 percent recycled content and is protected against mold growth with an EPA-registered mold and mildew inhibitor. And because it’s formaldehyde free, it improves indoor air quality, making it a better and safer choice for you and your family.

Effective R Values

2 x4 Exterior Walls – R 15
2x6 Exterior Walls – R 23
House Attic – R 40
Sloped Ceilings R 38

The 20th Century Construction—Savings and Comfort

20th Century is committed to building comfortable, energy-efficient homes. Our Superior Walls foundation and formaldehyde-free insulation are just some of the ways we increase the energy efficiency and provide cost savings for our clients.

20th Century also uses Energy Star-rated windows and has a third party-verified ACH (air changes per hour) average of 2.6. As of 2012, is a maximum ACH code is 5.

Lower ACH = improved air quality = safety, comfort and durability of your home