Why homeowners choose this with Sierra Siding
- Continuous weather-resistive barrier correctly lapped and sealed
- Flashing detailed at every window, door, and penetration
- Drainage and drying designed into the wall assembly
- The single biggest factor in long-term siding performance
Bay Area fog, valley heat, mountain freeze
Each climate drives moisture differently — fog-driven dampness, thermal cycling, and freeze-thaw. We design the wall assembly to manage bulk water and still dry, wherever your home sits.
FAQ
Common Questions
The WRB is the continuous layer behind the siding that sheds incidental water and lets the wall dry. Correct lapping and flashing integration is essential.
Almost always behind-the-board detailing — missing or reverse-lapped flashing and discontinuous WRB — not the siding material itself.
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