FIND A CONTRACTOR BUYER'S GUIDE
BECOME AN INDUSTRY PARTNER
MCAA Logo
MEMBER LOGIN JOIN
NEWS
2026 Midyear Meeting Registration is OPEN ↗

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
The Thirty-Year Mason: Ergonomics as a Retention Strategy
June 2026

In most industry circles, the conversation around the labor shortage follows a predictable script: How do we find the next generation of masons? While recruitment is vital, we often overlook the most valuable asset already on the job site: the experienced

Shayne Sanders
MAP Partner
Read More
Acme Brick Company Releases 2026 Pocket Guide to Brick Construction
June 2026

For more than four decades, all the basics of building with brick have come in a guide small enough to fit into a pocket. Acme Brick has just released a 2026 version of its Pocket Guide to Brick Construction. And yes, it’s still printed on paper just like

MAP Partner
Read More
Masonry in the Media: Casa Azul, Chapultepec Castle, & More
June 2026

A film’s settings can take viewers to new locations, all from the comfort of their own home. It immerses them in the scenes, whether they take place in an opera house in Brazil or a grand mansion in Mexico City. Explore how these Latin American masonry ma

Lily Burger
Masonry in the Media
Read More
Chairman’s Message: When Things Don’t Go as Planned
June 2026

Not every day in this business goes the way we planned. Some days, everything lines up. The crew is moving well. Materials are on time. The job is flowing the way you hoped it would. And then there are the other days. The ones where something breaks. T

Kent Huntley
Chairman’s Message
Read More