New construction roofing in Lynnwood starts with matching the roof to the home's framing and local weather loads. Homes here often use trusses that require precise nailing patterns and ice-and-water shield along the eaves because winter rains can last for weeks. We lay synthetic underlayment over the entire deck before installing asphalt shingles or metal panels, then add ridge vents sized for the attic volume so moisture does not build up during long wet seasons.
Flashing details around skylights, chimneys, and valleys matter most on new builds in Snohomish County. We use step flashing tucked under each course of shingles and counter-flashing at walls so water cannot migrate behind the siding. Proper drip edge on every rake and eave prevents wind-driven rain from reaching the fascia, a common issue when storms move through the area from the Puget Sound.
Ventilation and insulation coordination with the builder keeps the roof system performing for decades. We check that soffit vents remain unobstructed and that baffles are installed before insulation is blown in, avoiding the blocked airflow that leads to ice dams even in milder winters. All work follows current IRC requirements adopted by the city of Lynnwood.
Coordination with Builders
We meet framers and siding crews on site to sequence roofing after the deck is sheathed but before housewrap reaches the roofline. This prevents damage to finished exterior surfaces and lets us install step flashing correctly the first time.
Technician insight
In Lynnwood, the thing that catches most people out with new construction roofing is skipping the full underlayment layer because the builder wants to save a day. When the first big November rain hits and wind drives water under the shingles, the deck gets wet before the house is even closed in. We always run synthetic underlayment wall to wall on every new build we touch.
New Build on 44th Ave W
The builder called after the roof deck was sheathed but before siding started. We found the trusses spaced at 24 inches and noted the steep north-facing pitch that catches most of the winter rain. We installed ice-and-water shield to the 6-foot line, full synthetic underlayment, and architectural shingles with ridge vent. The home passed final inspection without moisture issues during the first wet season.
How it works
- 1
Site Review and Deck Inspection
Walk the new structure with the builder to confirm sheathing is dry, flat, and meets code nailing schedules.
- 2
Underlayment and Flashing Layout
Install ice-and-water shield at eaves and valleys, then synthetic underlayment across the full deck with taped seams.
- 3
Shingle or Metal Installation
Apply starter strips, field shingles or panels, and ridge cap while maintaining manufacturer exposure lines and wind ratings.
- 4
Ventilation and Final Walk
Confirm ridge and soffit vents are clear, then inspect every penetration and edge before signing off with the builder.
Pricing
Upfront quotes based on square footage, pitch, and chosen materials.