FIND A CONTRACTOR BUYER'S GUIDE
BECOME AN INDUSTRY PARTNER
MCAA Logo
MEMBER LOGIN JOIN
NEWS
The 2026 MCAA Annual Online Auction ↗

EnergyShield Wall Insulation

Appropriate wall insulation for residential and commercial buildings keeps interiors temperate and comfortable, regardless of exterior weather conditions. Basically, this entails keeping cold air out/warm air in during the winter, and cool air in/warm air out during the summer. A well-insulated building provides year-round comfort, cutting cooling and heating bills by up to 40 percent or 50 percent. In turn, this helps reduce the carbon footprint of the building.

Properly insulating the roofs, walls and (in some cases) floors helps meet these overarching goals. Whether a home or a commercial structure, deciding what with and how to sufficiently insulate a building depends on many factors, including where the building project is located and what types of building materials are used. Climates vary throughout the nation, which means different areas will have unique climate and weather conditions that will dictate how to properly insulate the building.

Wall insulation's crucial role

Using wall insulation is a key component in designing and constructing an energy-efficient building. While it can be retrofitted to existing buildings, the most efficient time to install wall insulation is during construction.

Builders and contractors have a variety of options when choosing wall insulation. One of the most energy-efficient and cost-effective ways to insulate walls is with continuous wall insulation (CI). As the name implies, CI is continuous across all structural members, and can be installed on the interior (certain issues apply) or exterior of the building envelope. This method can provide an air and vapor barrier, drainage plane, and potentially high R-values.

Benefits of CI

One of the biggest benefits of CI is that it provides an uninterrupted thermal barrier over an entire opaque wall, not just in wall cavities between studs. Without CI, thermal energy or heat bypasses the batt insulation and moves through the “thermal shorts” of the wall studs. Think of CI as a thermal blanket for a building's walls, one that can reduce air loss and can act as a weather-resistant barrier beneath the cladding, if it is installed to do so. As a leader in the wall insulation manufacture industry, Atlas offers wall CI products to suit many types of projects, including its EnergyShield Wall Insulation series.

Atlas’ EnergyShield wall insulation is made of closed-cell polyisocyanurate (polyiso) foam core, faced in the front with reflective foil, and in the back with a non-reflective facer. Walls sheathed with EnergyShield achieve high R-value and water resistance, making this rigid foam insulation suitable for a variety of CI applications. It can create a water-resistant barrier that prevents liquid moisture (usually from rain) that has breached the exterior wall cladding from continuing into the exterior wall, thus preventing damage.

To insure high performance from the water resistant barrier, during installation all boards must have their joints taped or sealed to a joining board and appropriate flashing must be used for rough window and door openings. Atlas recommends sealing into rough opening flashing and to other portions of the building, including the roof and below grade. Each Atlas EnergyShield CI product has specific instructions for use, including conditions of use, examination of board requirements, and preparation of boards, all of which are provided in the installation guides.

When constructed correctly, the continuous barrier envelops all structural components and surfaces. It provides a continuous "seal," which offers superior insulating properties. This polices air and moisture transfer. Using CI allows the temperatures inside the wall cavity to rise, resulting in a drier interior. Any moisture that does leak in, whether during construction and installation, or later because of leaks or water-related damage, is able to dry out.
 0
Outreach Outlook: Springing into Action – The Season of Growth
March 2026

There is a distinct shift in the air when March arrives. You can feel it on the job sites, and you can certainly feel it in the classrooms. As the winter chill begins to lift and the days are a little longer, the construction industry naturally wakes up f

Robert Melgaard
Outreach Outlook
Read More
Chairman's Message: Laying the First Brick - A Fresh Start
March 2026

As we head into a new year, I’m excited and, honestly, grateful to step into the role of Chairman of the Mason Contractors Association of America. This industry has been good to my family, and I see this role as a chance to give back and help move things

Kent Huntley
Chairman’s Message
Read More
GEN NXT: 2026 Skills Challenge Winners
March 2026

After another successful year of the Skills Challenge, the MCAA had the opportunity to speak with the three 1st Place winners of each skill level. Get to know their journeys, motivations, and the mindsets they have in order to compete in a national compet

Justin Stengel
GEN NXT
Read More
2026 World of Concrete Recap
March 2026

The 2026 World of Concrete Convention marked another successful year for masonry. From the world-renowned Skills Challenge and Fastest Trowel on the Block competitions to the new innovative GEORGE AI class, we gained a lot of ground in pushing this indust

Justin Stengel
Industry News
Read More