SBS Torch-On Roofing
Cost Guide
Learn what goes into SBS torch-on roofing costs in Metro Vancouver and the Fraser Valley, from overlay feasibility to full tear-off, tapered insulation, and roof perimeter detailing.
COST GUIDE
How Much Does SBS Torch-On Roofing Cost?
The cost of an SBS torch-on roofing project depends heavily on whether the existing roof can be overlaid or requires complete removal to the deck. Complex roof shapes, insulation work, parapet walls, and rooftop penetrations can also influence overall pricing. Projects typically fall into these general budgeting categories:
SBS Go-Over / Overlay
$5,000 – $10,000
Complete SBS Tear-Off
$10,000 – $20,000
Complex / Assembly Reconstruction
$20,000 – $40,000+
These are estimated price ranges for planning purposes only. The final cost can only be determined after a professional inspection of your property.
KEY FACTORS
What Affects the Cost?
Go-Over vs. Complete Tear-Off Requirements
Installing over a dry, sound assembly reduces demolition and disposal costs. However, trapped moisture, saturated insulation, rotten decking, or multiple existing layers demand a complete tear-off to the deck.
Total Roof Area & Small Roof Mobilization
Overall square footage establishes baseline material volume. Small flat roofs often have a higher effective cost per square because mobilization, safety setup, propane safety, and edge detailing are required regardless of size.
Insulation & Tapered Drainage Corrections
Flat roofs require positive water flow. Replacing wet insulation, adding rigid thermal boards, or constructing tapered insulation crickets to eliminate ponding water adds critical material and labour to the project.
Parapet Walls & Perimeter Terminations
Flat roofs terminating at parapet walls require base flashing, vertical membrane upstands, counter flashing, and metal cap flashing. Extensive parapet walls add substantial labour compared to open edges.
Rooftop Equipment, Curbs & Skylights
HVAC units, exhaust fans, plumbing vents, gas lines, roof hatches, and flat roof skylights require individual curb detailing and waterproof tie-ins into the SBS membrane assembly.
What's Included in a Professional SBS Torch-On Project?
- Thorough Roof Condition Assessment & Moisture Inspection
- Thorough Roof Condition Assessment & Moisture Inspection
- Complete Tear-Off or Approved Substrate Preparation
- Roof Deck Repair & Tapered Insulation Detailing
- Multi-Ply Base Sheet & Torched Cap Sheet Application
- Custom Flashing, Parapet Upstands & Drain Outlets
Why Choose In Awe Roofing?
We’re committed to quality, safety and long-lasting results.
Experienced & Certified Team
Experienced professionals focused on quality roofing workmanship.
Premium Materials
Quality roofing materials selected for reliable performance.
Manufacturer Qualifications
Qualified to work with leading roofing manufacturers and systems.
Fully Insured & Bonded
Professional roofing services backed by appropriate insurance and protection.
Local & Trusted in the Community
Reliable roofing solutions from an experienced local roofing team.
