Washington | Idaho
509-230-7262

Roof System · Spokane, WA

Modified Bitumen Roofing

Modified bitumen is a rubberized asphalt roof rolled out in multi-ply layers, a proven, rugged system for flat and low-slope roofs that can also be restored with a reflective coating at end of life.

Why property owners choose it

Benefits

  • Multi-ply redundancy, extra leak protection
  • Excellent for high-traffic flat roofs
  • Compatible with reflective coatings for a second life

Best fit for

Ideal Roofs

  • Commercial flat roofs
  • Older BUR (built-up) roofs needing replacement
  • Roofs with regular service equipment traffic

Our process

How We Do It

  1. 01

    Assessment

    Deck inspection, insulation review, ponding check.

  2. 02

    Tear-off or overlay

    Depending on condition, we tear off or install over existing.

  3. 03

    Base and cap sheets

    Torch-applied or self-adhered plies for full waterproofing.

  4. 04

    Flashings

    Detailed metal and membrane flashings at every transition.

  5. 05

    Warranty

    Manufacturer-backed labor and material warranty.

FAQ

Modified Bitumen Questions

Direct answers from 35+ years on the roof. More at our FAQ page.

  • Yes, as long as the roof is dry and sound, a fabric-reinforced silicone coating adds decades of life without a tear-off.

Schedule Your Free Roof Inspection

Fast, honest, no-obligation. We'll tell you if coating is the right fit, or if it isn't.