Columbia City Gray Slate ColorPlus Hardie Siding, Kingspan Insulation & Milgard Windows

This Columbia City, Seattle, WA project was built as a complete exterior case study, not just another list of siding materials. KV Construction looked at the house as a full wall system: what had to come off, what had to be checked behind the old siding, how water would be managed around windows and doors, and how the finished exterior should feel in its local setting.

Columbia City has a mix of older homes, mature trees, and weather-exposed side elevations. Removing old aluminum siding opened the opportunity to correct hidden substrate issues, add insulation, and integrate new windows into the same exterior system.

The core installation centered on 8 1/4-inch ColorPlus Hardie lap siding with a 7-inch reveal in Gray Slate. Gray Slate ColorPlus siding brought a modern, finished look while the Kingspan insulation and Milgard window work made the project more than a surface-level siding swap. The work also included aluminum siding removal, Gray Slate ColorPlus siding, Kingspan insulation, Milgard V300 Trinsic windows, which made the project more layered than a standard siding replacement and gave the final result a stronger sense of place.

KV Construction replaced the siding on two sides of our house, removed and replaced dry rot plywood, and replaced five windows. They did a great job, the siding and windows looks great. They were fast, respectful, and reliable. We would hire them again for more work down the road.

Laura Grange

Seattle, WA

Why This Exterior Needed More Than New Boards

The project started with removal and prep because the parts behind the siding determine how well the finished exterior performs. KV Construction does not position this kind of work as a small patch job; the goal is to reset the weather-facing wall system so the new siding has the right foundation.

Weather Barrier, Flashing, and Rain Control

Pacific Northwest siding work has to respect water. On this project, the weather barrier was HardieWrap paper with 1 1/2-inch Hardie seam tape. Flashing details included 4-inch HardieFlash tape, 26GA head flashing, white Z metal flashing, and white 26GA W inside corners. HardieWrap, seam tape, and detailed flashing created the water-management layer behind the siding, which is the part homeowners rarely see but rely on every winter. QUAD MAX sealant was used at key transitions so trim, blocks, windows, doors, and siding could work together instead of becoming separate weak points.

Material Choices That Fit the Home

The main siding choice was 8 1/4-inch ColorPlus Hardie lap siding with a 7-inch reveal in Gray Slate. KV Construction paired that with Arctic White or Statement Collection rustic Hardie 5/4×4 outside corners, window trim, and door trim. This is where a case study becomes more than a materials list: the profile, reveal, texture, trim depth, and finish all influence how the home reads from the street and how well the edges are protected.

Details That Made This Project More Complete

Several project details shaped the final result: Kingspan insulation installed behind the new exterior; Five Milgard V300 Trinsic windows installed after old window removal; Old aluminum siding removed; dry rot plywood replacement noted in the client review. These items matter because siding replacement often exposes the places where older exteriors were weakest: soffits, corners, window transitions, door openings, insulation gaps, or paint systems that no longer protect the home well.

Outcome and Homeowner Value

The client feedback for this project emphasized the parts KV wants future homeowners to notice: clear communication, a reliable crew, strong value, and a finished exterior that felt like a real improvement rather than a cosmetic patch. The result is the kind of project KV Construction wants to be known for: practical, well-organized, and built around a full siding replacement mindset suited to Seattle-area and Pacific Northwest weather.

Project Specifications And Materials

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.