Installed by Side-Pro Exteriors across Seattle, Bellevue and Tacoma
Cat 5 is the only barrier we install that will bond to a damp wall and take rain the same afternoon. It still will not cure below freezing.
R-Guard is PROSOCO’s fluid-applied system — rolled, brushed or sprayed straight onto the sheathing, curing in place into a continuous membrane with no seams, no laps and no fastener penetrations. Cat 5 handles the field of the wall, FastFlash the rough openings, Joint & Seam Filler the sheathing joints.
For a Pacific Northwest job the wet-weather tolerance is the genuine headline. Cat 5 bonds and cures in wet weather, may be applied to damp substrates, and tolerates rain immediately after application. Very little else in the category will do that, and on a re-side that opens a wall in November it changes what is possible.
The limit is temperature, not moisture. PROSOCO requires substrate and air between 32°F and 110°F for the material to cure; applied below freezing it simply sits there until a thaw. The product and the sprayer also need to be at 60°F or above to spray properly. So “installs in any weather” is wrong. “Installs in wet weather above freezing” is right — and across Seattle, Bellevue and Tacoma that covers most of the year.
Cat 5 is also one of the few products in this category whose air-barrier claim is fully supported. It publishes both an ASTM E2178 material result and an ASTM E2357 assembly pass, and it is rated for up to twelve months of exposure before the cladding goes on.
Protecto Wrap self-adhered · VaproShield membranes · SOPREMA membranes · Henry WRB range
PROSOCO does not publish a warranty period, and we will not invent one. The limited warranty printed on its data sheets warrants the product free from defects and limits liability to supplying enough material to re-treat the affected area — no duration, no labor. There is an enhanced warranty under PROSOCO’s R-Guard Promise program, but its terms are not published and are arranged project by project. Note also that every figure above is Cat 5’s specifically: FastFlash, Spray Wrap MVP and AirDam each carry their own perm, UV and temperature limits.