VERT / GREEN
Compare roof age/condition and PV system horizon before signing.
Solar panels and roof lifecycle sequencing
Avoid installing new PV on a roof that will soon need replacement and document structure, attachments, membrane and future access.
JAUNE / YELLOW
Future removal/reinstallation cost can change project economics; attachments must transfer loads correctly.
ROUGE / RED
End-of-life roof, unknown structure, leakage or attachment changes: coordinate roofer/structure/electrical before PV.
Interactive triage
This triage helps choose the next step; it does not replace design, permitting or professional diagnosis.
Useful tools and data
- Roof age/warranty
- Structural plan
- PV/attachment plan
What the professional checks
- Verify roof loading
- Coordinate roofer/PV installer
- Plan future removal
Official sources
Checked 2026-08-22.
Related path
Continue with the right tools
These links connect this page to the next useful checks and decisions without repeating the full content.
Track energy consumptionTrack kWh, costs, billing periods and consumption intensity over time.Open →Prepare home electrificationDocument panel, service, major loads and future projects before electrical assessment.Open →Estimate solar potentialTurn an official municipal yield into production, savings and simple payback.Open →Compare repair versus replacementCompare two strategies over the same horizon with recurring costs and residual value.Open →Check financial assistanceReview relevant Canadian and provincial programs before committing to work.Open →
Tools related to this issue
V14
Systems to check before closing the work
V14 connects envelope, air, fire, structure, water and code instead of treating each project in isolation.
V15
Remaining system checks not to miss
V15 covers issues that can block a project, cause a loss or become expensive once concealed.
V16
Advanced diagnostics to cross-check
V16 connects water, soil, climate, safety, materials and seasonal use to existing projects.
V17
Specialized systems to cross-check
V17 completes gas, soil, water, fire, climate and structural interfaces.
V18
Specialized diagnostics to verify
V18 connects systems that become costly or regulated when a primary project triggers them.
V19
Edge systems to integrate into the project
V19 covers interfaces that become important when multiple home systems interact.
V26
Often-overlooked service interfaces
V26 connects systems that cross utility, plumbing, HVAC, envelope and metering boundaries.
V27
Project risks and overlooked interfaces
V27 connects payment, water, envelope, ventilation and jobsite details that often create costly surprises.
V28
Finish and service details to verify
V28 connects small details that become costly once finishes are closed.
V30
Shared, access and specialized interfaces
V30 connects projects where multiple systems, owners or rules meet.
V31
Commissioning and everyday safety
V31 helps verify systems after work and document the values that make a home safer to operate.
V32
Post-disaster and legacy systems
V32 connects contamination, storm damage, legacy materials and recommissioning before rebuilding.
V33
Invisible constraints before work
V33 checks electrical, legal, environmental and climate constraints that can block a project before demolition starts.
V34
Use, excavation and construction constraints
V34 connects use permits, soil, excavation, neighbouring structures and public-space logistics before hard-to-reverse work.
V47
V47 interfaces not to miss
These details are small on a drawing but can control water, structure or durability.