Slate Roof Installation

What This Service Involves

Natural slate is quarried stone, and a correctly installed slate roof routinely outlasts the building it protects, making it the definitive choice for heritage and high-end Northwest properties. That permanence depends entirely on craftsmanship, since slate is unforgiving of poor fastening, undersized flashing, or an unqualified installer. We use copper or stainless fasteners and copper flashings that will not corrode before the slate does, because burying cheap metal under a hundred-year roof defeats the purpose. Each slate is graded, sorted, and hung to precise headlap so wind-driven Puget Sound rain cannot reach the deck. For homeowners who want a roof they will never replace, natural slate is in a class of its own.

Benefits

Service life commonly exceeds a century with proper flashing; Completely fireproof natural stone; Individual slates can be replaced by a qualified roofer; Unmatched dimensional beauty and prestige for historic homes; Environmentally durable material that never needs coating or sealing

Our Process

1) Assess structure carefully, as slate is among the heaviest roofing materials and demands robust framing; 2) Install premium underlayment with copper flashings at all valleys and penetrations; 3) Hang graded slates to precise headlap using copper or stainless nails; 4) Detail ridges and hips in copper or matching slate and inspect the full field for exposure accuracy

What Affects the Cost

Grade, thickness, and origin of the natural slate; Significant structural reinforcement for the heavy load; Copper flashing and fastener package required for longevity; Specialized labor from experienced slate installers; Tear-off and disposal of the existing roof system

Best Time of Year

Install slate through the dry season when installers can maintain precise headlap and flashing detail without weather interruptions.