The latest weather barriers provide thermal breaking plus UV protection

Keep it Dry, Keep it Safe

The latest weather barriers provide thermal breaking plus UV protection

The latest weather barriers provide optimal thermal breaking plus UV protection. Picture: BRINC Building Products window insulting system, not UV stable, and is designed to be covered with cladding. (Courtesy BRINC Building Products)

UV Protection

Sun damage remains one of the biggest threats to a building’s exterior. These newly developed water and air barriers employ UV-protection technologies to maintain the integrity of building envelopes.

(Courtesy Dörken)


This self-adhering vapor-permeable weather and air barrier comprises two outer layers of spun-bonded polypropylene fabric and a subsequent UV-protecting inner layer. The additional UV-resistant acrylic coating protects the moisture absorbing properties that would otherwise be damaged while the material is left exposed during construction.

Sto Gold Coat Sto Corp.
(Courtesy Sto Corp.)

Sto Gold Coat
Sto Corp.

Sto Corp.’s tried-and-true liquid applied membrane provides extended UV-protection time, allows for low temperature application, and increases opacity to hide sheathing. The barrier is directly applied to wall paneling or concrete masonry and is combined with a waterproofing StoGuard sheathing-joint treatment where needed.

TRASPIR EVO UV 210 Rothoblaas
(Courtesy Rothoblaas)

Window Bucks

It’s not enough to have thermally broken windows and doors; create unbroken, insulated building envelopes using window bucks, air-tightening, and waterproofing products that extend around openings.

ThermalBuck BRINC Building Products
(Courtesy BRINC Building Products)

BRINC Building Products

This insulating system acts as an air and water barrier while simultaneously supporting the weight of a window or door, which prevents sagging in the exterior membrane. It is sold in lengths of 8 feet and available in seven depths: 1 inch, 1 1/2 inches, 2 inches, 2 1/2 inches, 3 inches, 3 1/2 inches, and 4 inches. ThermalBuck is not UV stable, and is designed to be covered with cladding.

Fox Blocks Series
(Courtesy Fox Blocks)

Fox Blocks Series
Fox Blocks

Fox Blocks are made of an outer shell of expanded polystyrene foam panels tethered together by interior injection-molded plastic ties. Besides protecting the building envelope from moisture, the insulating concrete form wall blocks dampen noise. The system is offered in a plethora of shapes, sizes, and concrete core thicknesses for exterior and interior applications.

PVC Beveled Window Buck Supreme Window Bucks
(Courtesy Supreme Window Bucks)

PVC Beveled Window Buck
Supreme Window Bucks

Most window bucks have a square cross-section that causes a gap to form between the window opening surface and the window frame. With a patented trapezoidal cross-section, this PVC window buck uses a beveled edge that allows the insulating layer to be positioned closer to the window opening surface. The drywall can then installed in such a way that the interior frame is still fully exposed.