Older Spokane homes can have multiple layers of asphalt shingles accumulated through previous roof replacements, repairs, and additions. On properties in Browne's Addition, a complete replacement may require removing the existing roofing down to the decking so the condition of the sheathing, underlayment, flashing, and roof edges can be properly evaluated. Tear-off also provides an opportunity to identify trapped moisture, deteriorated decking, and areas affected by years of freeze-thaw cycles before new roofing materials are installed.
The replacement system needs to match the roof's pitch, drainage pattern, eaves, valleys, and existing construction rather than simply covering the old surface. Ice and water protection can be especially important at vulnerable areas such as valleys and eaves where snow accumulation and spring melt can push water beneath the roofing. Existing flashing replacement may also be necessary around chimneys, walls, skylights, and other roof transitions when the original metal has corroded or no longer provides a reliable water path.
Material selection also depends on the roof design and the building itself. Asphalt shingles remain common, while standing-seam metal can be used on appropriate roof designs where durability, snow shedding, and wind exposure are important considerations. Low-slope sections on garages, additions, and similar structures may require membrane roofing rather than standard shingles. Where steep and low-slope sections meet, careful flashing and sealing is important to prevent water from entering at the transition. Homes in Comstock and other Spokane neighborhoods may also have additions built at different times, creating several roof slopes and material transitions that need to work together.
Hidden decking damage is one of the conditions that can change the scope of a roof replacement after the existing materials are removed. Previous leaks, ice dams, failed flashing, and long-term moisture exposure can weaken sheathing even when the exterior roof looks relatively intact. A roof inspection can help document the existing condition before replacement begins, while attic ventilation upgrade may be appropriate when inadequate airflow has contributed to moisture or temperature problems. The goal of a full roof replacement is to rebuild the roofing system on a sound base and address the underlying conditions that contributed to its deterioration.
Technician insight
In Spokane the thing that catches most people out with full roof replacement is the hidden deck damage from repeated ice dams on South Hill homes that lack proper ridge venting; once we open the roof we often find the sheathing needs replacement before any new material can go down.
South Hill Ice-Dam Repair Turned Full Replacement
A 1938 home near Manito Park showed recurring ceiling stains after heavy snow. Tear-off revealed widespread rot along the eaves from missing ice-and-water shield and blocked soffits. We replaced damaged decking, added full ice-and-water coverage, installed a standing seam metal roof with upgraded ridge venting, and the leaks stopped through the next winter.
Full Roof Replacement Services We Offer
✓Asphalt Shingle Full Replacement
Complete tear-off and installation of architectural shingles rated for Spokane snow loads with upgraded underlayment and ridge venting.
✓Standing Seam Metal Roof Replacement
Removal of existing roofing and installation of 24-gauge standing seam panels that shed snow quickly on exposed Spokane properties.
✓Low-Slope Membrane Replacement
Full replacement of modified-bitumen or TPO on flat garage and addition roofs with proper flashing at all transitions.
✓Cedar Shake Replacement
Tear-off and reinstallation of treated cedar shakes on historic Spokane homes with new underlayment and ventilation upgrades.
✓Skylight and Vent Integration
Replacement or addition of skylights and roof vents during full roof work to improve attic airflow in older Spokane houses.
Full Roof Replacement Cost in Spokane, WA
| Service | Typical Range | What Affects It |
|---|---|---|
| Standard asphalt replacement, 1,800–2,200 sq ft | $9,500–$14,000 | Includes tear-off, underlayment, and basic ventilation; rises with steep pitch or multiple layers. |
| Standing seam metal replacement | $14,000–$22,000 | Depends on panel gauge, color, and number of penetrations such as chimneys or skylights. |
| Low-slope membrane section | $3,200–$6,500 | Price moves with square footage and whether transitions to steep roof require custom flashing. |
| Deck repair allowance | $800–$2,400 | Added when rotted sheathing is discovered during tear-off on older Spokane homes. |
Ranges are typical for Spokane, WA and confirmed with an exact written quote before any work starts.
How it works
- 1
On-Site Assessment
We measure the roof, check decking condition, and note existing ventilation and flashing details on Spokane homes.
- 2
Material And Permit Planning
We select products suited to local snow and wind, then pull required Spokane County permits before work begins.
- 3
Tear-Off And Deck Repair
All layers are removed, damaged sheathing is replaced, and ice-and-water shield is installed at eaves and valleys.
- 4
Installation And Final Inspection
New roofing, flashing, and ventilation are installed; the job is walked with the homeowner and county if required.
Pricing
Upfront quotes after inspection; price varies by roof size, pitch, material, and deck condition.