A Residential Re-Roof

by Marcy Marro | August 1, 2019 12:00 am

An underlayment enhances home’s total performance

By Shannon Delgado

Boral Case Study 2

“Temperatures in Orange County climb during many months of the year,” says Christopher. “Our house was very warm in the summer, and the air conditioner was our only reprieve from the heat.”

Upon a more thorough review, the Vus realized the energy consumption they attributed to their air conditioner was directly linked to their poorly performing roof. The asphalt shingle direct deck roof was susceptible to reaching extremely hot temperatures in peak summer months. The region is known for high sunlight, and the roof’s resistance to heat transfer was lackluster.

“Knowing that our energy bills weren’t going to resolve themselves, as well as the fact that we were nearing the expiration date of our asphalt roof, we made the smart decision to completely re-roof,” adds Christopher.

The Vus sought out a lightweight roofing solution that would prevent heat transfer, was durable, and offered a longer life span than asphalt. They selected Irvine, Calif.-based Boral Roofing[1]’s Steel Pine-Crest Shake in Charcoal to complement the light grey exterior of their home and several of the neighborhood’s surrounding homes, many of which feature actual shake roofing. A cool roof, the system also includes elevated battens and Boral’s MetalSeal Underlayment.

An alternative solution to the 30-pound felt underlayment commonly utilized in Southern California, MetalSeal is a high-performance water barrier. Ideal for use under metal roofing, the self-adhered underlayment offers fast, easy installation and numerous benefits. The high-strength woven polyester surface remains intact under high foot traffic during installation. It is also safe for steep slope roofs, optimizing grip for installers’ shoes and helping to prevent slips and falls even when wet. The material is resistant to puncturing, allowing roofers to stack heavy tiles on it during installation and save numerous time-consuming trips up and down to load product.

Boral Case Study 1

Although MetalSeal is a self-adhered product that virtually eliminates the need for nails, the installation of the airflow battens requires nailing. The good news is the MetalSeal self-seals around those fasteners maintaining its leak proof quality. The material is UV resistant up to six months in case of any delays between its installation and the installation of the roofing material. MetalSeal remains stable in low and high temperatures in a wide range of climates. The flexibility and robustness of the material allows for installation in freezing winter or hot summer temperatures, reducing the likelihood of weather-related delays. The underlayment is rated up to 260 F and meets or exceeds all national and Florida building code requirements.

“For many reasons, we were able to reduce the expense and safety risk of our installation with the use of this underlayment,” adds Christopher. “It also provides great protection from wind and water. MetalSeal has proven to be an integral component of our complete new roof system.”

The total cool roof system installed on the Vus’ home is designed to keep the home warmer in winter and cooler in summer, reducing the overall energy consumption of the home. The elevated battens provide both a thermal barrier and ventilation. Air enters through the system’s vented eave riser, and hot air is released through the ridge. The result is optimized energy efficiency. Where the previous asphalt shingle roof could reach 150 F, the temperature of the new metal roof system is unlikely to exceed 90 degrees.

“On average, we are saving almost $60 per month on our energy bills,” adds Christopher. “These are real savings that make a difference and we couldn’t be happier.”


Shannon Delgado is senior marketing manager with Boral Roofing, Irvine, Calif. Visit Boral Roofing online at www.boralroof.com[2] or contact Delgado at shannon.delgado@boral.com[3].

Endnotes:
  1. Boral Roofing: http://www.boralroof.com
  2. www.boralroof.com: http://www.boralroof.com/
  3. shannon.delgado@boral.com: mailto:shannon.delgado@boral.com

Source URL: https://www.metalarchitecture.com/articles/a-residential-re-roof/