For underlayments, ATAS has added PanelShield SA by VaproShield to its product offering. The wall panel underlayment offers many positive attributes, including:

• Creating a water-resistive air barrier when applied outside of the wall sheathing.
• A cost-effective, permeable, polyester air barrier water-resistant barrier system.
• Does not require primer.
• Can handle up to 12 months of UV and weather exposure, ideal for long-term projects.
• Is tough, durable and withstands aggressive construction handling.
• Tenacious adhesion to a substrate that withstands cross-country transport.
• An aggressive adhesive that firmly grips to OSB and other common substrates.
• A superb drying capacity of 26 perms.
• All-weather installation, including below freezing and 20 degrees Fahreheit (-6 degrees Celsius).
• Use for transitions, rough openings, fenestrations and full-wall applications.
• Is an air barrier that passes ASTM E2178 and E2357.
• Is fire-rated, Class A in ASTM E84.
• A 20-year warranty.

PanelShield SA joins three other underlayments offered by ATAS, all of which are roof underlayments:

• SlopeShield Plus by VaproShield self-adhered roof underlayment – Recommended for use with the ATAS ASV/TB Shim to offer a highly vapor-permeable roofing underlayment air barrier material to allow the entire roof assembly to breathe, while the ASV/TB shim provides for above-sheathing ventilation and increased energy efficiencies.
• ATA-Shield roof underlayment – A self-adhering underlayment designed specifically for use under metal roofing. The membrane is well suited for use where a WRB is required. It is formulated to withstand the high-heat environment generated by some metal roofing systems. ATA-Shield is composed of an unreinforced, polymer-modified bitumen material adhered to the underside of a polymer-coated, synthetic woven material.
• ATA-Guard roof underlayment – A highly engineered, mechanically attached, coated woven synthetic roofing underlayment for sloped roofs. It can be used under all types of primary roofing materials and is approved as an alternative replacement for Type 15 or Type 30 asphalt roofing felt. ATA-Guard is five times lighter and 25 times stronger than 30-pound asphalt. It is a 100 percent asphalt-free reinforced underlayment. Advanced polymers are combined to produce a film that is unaffected by water and resistant to UV for up to six months.