Project background
This roof was replaced under a manufacturer warranty claim. The original synthetic composite roofing product was defective, so the manufacturer covered the cost of the replacement material and a portion of the labor. The remaining material and labor, along with the snow retention system and the custom chimney cap, were paid out of pocket by the homeowner. At the same time, the homeowners were completing a full remodel that included a new addition, which added roof area. The work was handled in two stages. First we tore off what was needed and dried in the addition, then we returned at a later date to install the finished roofing system.
Roof replacement details and cost
Roof size: 60 squares, approximately 6,000 sq ft
Roof replacement total: $116,287
Cost per roofing square: approximately $1,938
Cost per square foot: approximately $19.38
Material removed:
• Manufacturer-defective synthetic composite roofing
Layers removed: 1
Decking: No decking was replaced
Material installed:
• DaVinci Single-Width Slate, Slate Black (55 squares)
• 60 mil EPDM membrane on low-slope and flat areas that tie into the DaVinci roof (5 squares)
Valleys: Open metal valleys
Exposure: 6-inch exposure, as required for the 4:12 pitch. This exposure also allows for a Class A fire-rated assembly using full ice and water shield only.
Fire rating: Class A fire-rated roof system
Impact rating: Class 4 impact-resistant product
Underlayment: Full ice and water shield installed over the entire roof
Manufacturer Warranty: Standard DaVinci manufacturer warranty
Workmanship warranty: 10-Year Pak Exteriors Workmanship Warranty
Low-slope roofing (EPDM)
EPDM scope: A 60 mil EPDM membrane system was installed on the smaller flat and low-slope areas of the home, tied into the DaVinci roof.
EPDM quantity: 5 squares
Ventilation
Ventilation scope: The ventilation system was completely redesigned. The previous setup did not have enough room in the soffits for proper soffit intake ventilation. We added on-deck intake ventilation and adjusted the ridge vent so the intake and exhaust were balanced.
Snow retention system
Snow guard quantity: 200 snow guards
Snow retention total: $5,500
Average cost per snow guard: $27.50
Custom chimney cap
Chimney cap: Custom 1/8-inch steel, powder-coated chimney cap
Chimney cap total: $7,818
Installation, permits, and inspections
Installation duration:
• Addition dry-in plus low-slope EPDM areas: 1 day
• DaVinci install: 2 days
Staging: Work was completed in two stages. The addition was dried in first, then the finished roofing system was installed at a later date.
Permits: Columbine Valley
Inspections completed:
• Roof final inspection
(No mid-roof inspection required)
Permit status: Permit passed and finaled
