MASS & MASS LLC
Roofing project examples

Roofing projects in
the Greater Seattle area.

A wood-shake roof replacement in Sammamish, metal-roof maintenance in Bothell and a tile-roof repair in Tukwila. Explore the materials and scope from three completed Mass & Mass LLC projects.

Sammamish, WA

Completion recorded

Roofing materials
CertainTeed Presidential Shake TL asphalt shingles

Wood shake to Presidential Shake TL shingles

A wood-shake roof replacement with plywood decking work.

Project scope

  • Remove the existing wood-shake roofing and old underlayment; inspect the decking.
  • Install plywood decking where needed, ice and water shield, and synthetic underlayment.
  • Install CertainTeed Presidential Shake TL shingles, drip edge, valley metal, ridge ventilation and penetration flashing.
Roof replacementRoofing in Sammamish

Bothell, WA

Completion recorded

Roofing materials
Existing metal roof; compatible metal boots and aluminum vents

Metal-roof cleaning and penetration repairs

Maintenance of an existing metal roof, including replacement of pipe boots and flapper vents.

Project scope

  • Clean the metal roof surface.
  • Replace three metal-roof-compatible pipe boots.
  • Replace one 4-inch and one 6-inch aluminum flapper vent, and seal the penetration flashings.
Roof repairMetal roofingRoofing in Bothell

Tukwila, WA

Completion recorded

Roofing materials
Existing roof tiles, replacement plywood and ice and water shield

Tile-roof valley and damaged decking repair

A localized tile-roof valley repair involving damaged plywood decking.

Project scope

  • Lift the existing tiles in the valley to reach the damaged decking.
  • Replace damaged plywood, apply ice and water shield, and reset the existing tiles.
  • Clean the gutters and downspouts and check drainage flow.
Roof repairGutter services

These summaries were prepared from company project records in October 2026. Dates show when completion was recorded. Customer names, street addresses and contract prices are omitted. The scope, materials, schedule and warranty for a future project are confirmed in its own written proposal.

Planning a repair or replacement?

Tell us about your roof so we can inspect the property and prepare a written scope. Based in Redmond, Mass & Mass LLC serves the Greater Seattle area under Washington contractor registration MASSMML832MJ.

Request a free estimateCall (425) 435-5800

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