Building products manufacturer CertainTeed has launched Landmark PWR, a direct-to-deck building-integrated photovoltaic (BIPV) roofing system engineered to replace standard rack-mounted solar arrays.
Designed to blend visually with traditional asphalt shingles, the system combines high-output solar shingles with a specialized fire barrier underlayment to deliver Class A fire protection and high wind resistance.
The core unit of the system is an 85 W nominal power output frameless laminate shingle built with 24 series-connected M10R half-cut monocrystalline cells, yielding an active cell efficiency of 21.1%.
The design integrates two bypass diodes per solar shingle to mitigate localized shading losses and maintains a maximum system voltage rating of 600 V with a 15 A maximum series fuse rating.
Measuring 47.68 inches wide by 17.70 inches long overall with an exposed active area of 47.7 inches by 16.15 inches (5.35 square feet), each unit weighs 24 pounds and delivers an effective power density of approximately 15.89 W per square foot.
The low-profile structure sits at a thickness of 0.27 inches at the laminate face and 2.23 inches at the rear junction box housing. Electrical interconnections utilize standard 12 AWG PV wire terminating in Stäubli MC4 connectors, with a total lead wire length of 35.0 inches measured from the junction box to the connector ends. The shingles require a minimum roof pitch of 4:12.
To achieve system-level fire and weather compliance, CertainTeed paired Landmark PWR with its Protect FR underlayment. The self-adhering, fiberglass-reinforced underlayment meets ASTM D1970 standards for ice and water protection and functions as a fire barrier to secure UL 790 / ASTM E108 Class A ratings on combustible roof decks. Protect FR is rated for application temperatures ranging from -40°F to 265°F, features a double-sided split release liner, and provides 180 days of maximum UV exposure resistance.
The underlayment comes in 60-pound rolls measuring 35.5 inches by 74 feet, offering 200 square feet of net coverage with required 3-inch side laps and 6-inch end laps.
The mechanical integration allows single shingles to be removed and replaced independently without disturbing adjacent roofing materials or invalidating surrounding roof warranties. Structural testing qualifies the system to a design load capacity of +2400/-1600 Pa, FM4473 Class 3 impact resistance against hail, and ASTM D3161 Class F wind resistance rated up to 110 mph. The product is pending California Energy Commission listing, Florida Building Code High Velocity Hurricane Zone approval for peak wind speeds up to 194 mph, and UL 3741 rapid shutdown system certification.
The system works with third-party module-level power electronics, including power optimizers and microinverters, as well as surrounding roofing materials up to one inch thick.
CertainTeed backs the Landmark PWR system with a 25-year limited power warranty guaranteeing 98% nominal power output in year one and an annual degradation rate not exceeding 0.55% through year 25, alongside a 25-year limited workmanship warranty and a 10-year 110 mph limited wind warranty.
Landmark PWR will be available on November 1st, 2026. Product datasheet here.
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