Warranty-Backed Residential Roof Installation in Greater Seattle

How Residential Roof Installation Differs from Replacement

Roof replacement addresses an existing structure — tearing off old material and installing new on an existing deck. Residential roof installation on a new build or addition starts from bare framing. This distinction matters for several reasons:

• The decking must be installed and inspected before roofing begins — any framing irregularities, incorrect rafter spacing, or structural issues need to be resolved before the roof system goes on
• Ventilation design is established during the installation phase and is difficult to correct afterward — proper ridge, soffit, and intake ventilation must be planned into the system
• Flashing and integration with new siding, windows, and wall systems requires coordination with other trades — the roofing contractor and the framing or siding contractor need to work in the correct sequence
• Code compliance for new construction is inspected at multiple stages — we manage this process and ensure every phase passes before proceeding

Because new builds and additions involve open, unweathered framing, there’s also an urgency to get the roof closed in promptly. Exposed framing left to Greater Seattle’s rainfall absorbs moisture that causes swelling, mold risk, and long-term structural concerns. We coordinate scheduling to minimize the window between framing completion and roof close-in.

Residential Roofing Systems We Install on New Builds and Additions

Asphalt Shingles — Architectural and Dimensional

Architectural asphalt shingles are the most commonly specified roofing material for new residential construction in Greater Seattle. They offer a cost-effective combination of durability, wind resistance, and a wide range of aesthetic options. We install Malarkey rubberized architectural shingles on qualifying new construction projects, which include a 50-year non-prorated material warranty through Malarkey in addition to our 20-year workmanship warranty.

Metal Roofing

Standing seam and metal shingle systems are increasingly specified for new residential construction in Greater Seattle — particularly for contemporary and energy-conscious designs. Metal roofing on a new build is easier to integrate cleanly than on a retrofit, since the underlayment, ventilation, and flashing systems can all be designed together from the start. Lifespans of 40 to 70 years make metal an attractive choice for homeowners building for the long term.

Cedar Shake and Shingle

Cedar remains a popular specification for new residential construction in Pacific Northwest neighborhoods with traditional architectural character. Properly installed cedar roofing requires specific underlayment, ventilation, and spacing details that allow the shakes to breathe and dry — critical in Greater Seattle’s wet climate. We install cedar systems to the specifications required for the climate and for warranty coverage.

Tile and Slate

Tile and slate are heavy materials that require structural verification before installation — the roof framing must be designed or confirmed to handle the additional load. On a new build, this can be incorporated into the structural design from the beginning, making new construction the ideal context for a tile or slate installation. Both materials offer 50-year-plus lifespans and distinctive architectural presence.

What a Complete New Construction Roof Installation Includes

A properly installed new construction roofing system is not just the surface material. It includes:

• Decking installation and inspection — OSB or plywood sheathing, properly spaced, nailed to code, and confirmed flat and sound before underlayment begins
• Underlayment system — synthetic or felt underlayment installed to manufacturer specs as the primary water barrier beneath the roofing material
• Ice and water shield — applied at eaves, valleys, and all penetration areas to provide a secondary waterproof layer in the highest-risk zones
• Proper ventilation installation — ridge vents, soffit vents, and intake systems balanced for the attic volume and roofing material requirements
• Flashing at all penetrations, valleys, rakes, and eaves — properly integrated with the wall system and window flashings installed by other trades
• Roofing material installation — to manufacturer specifications, with correct fastener patterns, exposure, and alignment
• Ridge cap and finishing — completing the system at the peak with appropriate ridge cap material

Common Installation Issues on New Builds in Greater Seattle — and How We Address Them

Framing Irregularities That Affect the Roof Plane

New framing is rarely perfectly uniform. Rafter crowns that face the wrong direction, sheathing joints that don’t land on framing, and out-of-plane surfaces all affect the finished roofline and the performance of the roofing system. We assess the framing plane before installation and address irregularities, either directly or in coordination with the framing contractor, before they become a permanent feature of the finished roof.

Inadequate or Incorrectly Designed Ventilation

New construction roofing frequently has ventilation problems because the ventilation system is designed and installed by multiple parties — framers, insulation contractors, and roofers — without always being clearly coordinated. An underventilated attic in Greater Seattle leads to moisture accumulation, premature shingle aging, and mold growth. We assess the full ventilation system and ensure it meets the requirements for the specific roofing material and attic configuration before we close in the roof.

Sequencing Conflicts with Other Trades

On a new build, the roofing contractor works alongside siding crews, window installers, and HVAC contractors. Sequencing matters: roof flashing at the rake must integrate with the siding system; pipe boots and curbs for mechanical penetrations must be coordinated with the HVAC contractor. We communicate proactively with other trades and general contractors to ensure the installation sequence produces a properly integrated building envelope.

Weather Exposure During the Construction Window

In Greater Seattle, the construction window for getting a new roof closed in can be tight. Extended rainfall between framing and roofing completion exposes fresh lumber to sustained moisture. We coordinate scheduling to minimize exposure and, when weather prevents immediate close-in, can provide temporary weatherproofing to protect the framing.