Installed by Side-Pro Exteriors across Seattle, Bellevue and Tacoma
A membrane engineered in Washington State, for walls that spend eight months of the year wet.
VaproShield makes vapor-permeable water-resistive and air barrier membranes for walls and roofs, in both self-adhered and mechanically attached forms. WrapShield SA is the self-adhered wall membrane we reach for most often. The company is headquartered in Washington State, which is not a marketing detail — the products were developed against the same wet, mild, long-drying-season conditions our walls actually face.
The range includes UV-stable membranes intended to sit behind open-joint and rainscreen cladding, where the barrier is partly visible through the gaps and an ordinary wrap would degrade. That is a real capability and a narrow one; most WRBs cannot do it.
WrapShield SA is published as sustaining 180 days of UV and climate exposure and carries a Class A fire rating. As with every membrane on this site, treat 180 days as a ceiling rather than a plan — a barrier left open through a full Seattle winter is a barrier working at the edge of what it was tested for.
We install VaproShield assemblies on residential and commercial buildings across Seattle, Bellevue, Tacoma and the wider Puget Sound region.
Protecto Wrap self-adhered · SOPREMA membranes · PROSOCO R-Guard · Henry WRB range
We have deliberately not published a perm rating or a warranty term for VaproShield here. Their document server does not serve those figures to us reliably, and we would rather leave a number out than print one we have not read off the manufacturer’s own sheet. VaproShield’s warranty is issued by request against a project profile rather than as a blanket term, so if warranty coverage is part of your decision, ask us and we will get the specific document for your assembly.