Seattle House & Garage Smooth Fiber Cement Board-and-Batten Exterior With OSB & Cedar Entry

This Seattle, WA project was built as a complete exterior case study, not just another list of siding materials. KV Construction approached the work as one exterior system, coordinating the main cladding with the documented preparation, weather protection, transitions, and finish details.

For a Seattle property, coordinating the house and garage under the same wall-system logic keeps the exterior more consistent through wet-season exposure.

The core installation centered on Smooth HardiePanels with Allura 1×3 battens every 16 inches on center. Several project-specific details shaped the scope: 1×6 TK tongue-and-groove cedar at the entry added a warm material contrast; the house and garage were coordinated as one exterior package. Together, those choices gave the project a clearer architectural identity while keeping the scope grounded in the actual materials and processes used on site.

Seattle Seattle House & Garage Smooth Fiber Cement Board-and-Batten Exterior With OSB & Cedar Entry by KV Construction
Seattle Smooth HardiePanels with Allura 1x3 battens every 16 inches on center exterior detail

One Exterior Language Across the House and Garage

The project started with the preparation that mattered for this specific exterior: old siding removed; 4×8 OSB installed on the existing house where specified. That work gave the new siding system the right foundation instead of treating the project as a surface-only update.

Weather Barrier, Flashing, and Rain Control

Pacific Northwest exterior work has to respect water. On this project, the documented supporting system included HardieWrap, seam tape, HardieFlash, 26GA flashing, Z-metal, and QUAD MAX. Those layers and transition details help the siding, openings, corners, penetrations, and adjoining surfaces work together through the region’s long wet season.

Material Choices That Fit the Project

The main exterior choice was Smooth HardiePanels with Allura 1×3 battens every 16 inches on center. KV Construction paired that with Smooth Allura 5/4×4 trim with dedicated exterior blocks. The profile, spacing, texture, trim depth, and color or finish all influence how the building reads from the street, while the supporting details protect the edges where materials meet.

Details That Made This Project More Complete

Several project details made this scope more complete: 1×6 TK tongue-and-groove cedar at the entry added a warm material contrast; the house and garage were coordinated as one exterior package. These items are important because siding projects often become most complex at soffits, openings, rooflines, lower-wall transitions, gutters, or places where two materials and profiles meet.

Outcome and Property Owner Value

The finished scope gives the property a more coordinated exterior, with the visible siding and the supporting details tied into one project. It is the kind of work KV Construction wants to be known for: practical, well-organized, and built around durable siding systems suited to Pacific Northwest weather.

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Project Specifications And Materials

  • Area: Seattle, WA
  • Type: House and garage fiber cement siding replacement
  • Siding: Smooth HardiePanels with Allura 1x3 battens every 16 inches on center
  • Weather Barrier / Flashing: HardieWrap, seam tape, HardieFlash, 26GA flashing, Z-metal, and QUAD MAX
  • Trim / Metal Details: Smooth Allura 5/4x4 trim with dedicated exterior blocks
  • Repairs / Prep: Old siding removed; 4x8 OSB installed on the existing house where specified
  • Additional Scope: 1x6 TK tongue-and-groove cedar at the entry added a warm material contrast; the house and garage were coordinated as one exterior package
  • Sealant: QUAD MAX caulking application where specified

Request a Free Siding Consultation

Talk with KV Construction about a full siding replacement, James Hardie exterior upgrade, or larger moisture-related siding project built for Pacific Northwest weather. KV Construction is owner-operated, uses consistent crews, follows disciplined flashing and QUAD MAX sealant standards, and backs its work with a 5-Year KV Workmanship Warranty. Request a free siding consultation to review your exterior, materials, waterproofing details, and project fit.

PNW rain-ready wall system on Seattle project
KV Construction siding installation process in Seattle