Energy-Efficient Home Retrofits in Bellingham, WA
Exterior Insulation & Air Sealing
Reduce heat loss and drafts by upgrading insulation and tightening the building envelope.
Rainscreen Wall Systems
Create a ventilated drainage space behind siding so moisture can escape and walls can dry properly
Window & Door Integration
High-performance windows only work when they’re properly flashed and air-sealed into the wall system, whether it’s an “innie” or “outtie” installation.
Balanced Ventilation (ERV / HRV)
Fresh air systems that remove moisture and stale air while keeping heat inside — essential in tight, efficient homes.
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This 1970s raised-ranch home was upgraded with a complete high-performance wall system. The existing cedar channel siding was removed and reused as rainscreen battens, creating a ventilated air gap behind the cladding.
Over the original sheathing, a Benjamin Obdyke Hydrogap weather-resistive barrier and 2 inches of polyisocyanurate exterior insulation were installed to reduce heat loss and condensation risk.
The home’s existing windows were rebuilt with cedar “innie” window bucks so they could be properly integrated into the new wall assembly, and the exterior was finished with James Hardie siding for long-term durability.