Slate or clay tile roofing

Preserve durable heavy roofing by diagnosing fasteners, flashing, deck, underlay and structure before wholesale replacement.

VERT / GREEN = documenter/entretenir · JAUNE / YELLOW = vérifier avant travaux · ROUGE / RED = arrêter le DIY et faire valider.

A few broken units
Consider compatible repair/replacement before full reroofing. Sagging or questionable structure
Verify structure before adding/reinstalling heavy roofing. Deteriorated flashings
Address leak cause without unnecessary removal of sound units. Material/source documented
Keep size, colour and source for future repairs.

What the professional checks

Assess deck, fasteners and loads
Plan compatible repairs and flashing

Official sources

Parcs Canada — Standards et lignes directrices

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.

Connect symptoms to the enclosureStart from condensation, staining, odours or movement before choosing a repair.Open →Adapt the enclosure to climateConnect heat, cold, water, wind and wildfire to building priorities.Open →Assess overall resilienceReview water, climate, safety, autonomy and records with a local score.Open →Screen hazardous materialsIdentify situations where work should stop and testing is needed before disturbance.Open →Open climate guidanceReview climate constraints relevant to assemblies and materials.Open →

Tools related to this issue

Whole-home action plan

Open →

Seasonal maintenance

Open →

V14

Systems to check before closing the work

V14 connects envelope, air, fire, structure, water and code instead of treating each project in isolation.

Renovation dependenciesShower waterproofingRoof penetrations and flashingCode versions

V16

Advanced diagnostics to cross-check

V16 connects water, soil, climate, safety, materials and seasonal use to existing projects.

Roof snow and iceJobsite safety and silicaCuring, drying and acclimation

V17

Specialized systems to cross-check

V17 completes gas, soil, water, fire, climate and structural interfaces.

Wildfire and embers

V18

Specialized diagnostics to verify

V18 connects systems that become costly or regulated when a primary project triggers them.

Low-slope roofRoof deck over living space

V19

Edge systems to integrate into the project

V19 covers interfaces that become important when multiple home systems interact.

Skylight/tubular daylightingGreen roof

V26

Often-overlooked service interfaces

V26 connects systems that cross utility, plumbing, HVAC, envelope and metering boundaries.

Electrical service, mast and meter

V27

Project risks and overlooked interfaces

V27 connects payment, water, envelope, ventilation and jobsite details that often create costly surprises.

Gutters, downspouts and roof drainageTile, stone and substrate deflectionTemporary weather protection during renovation

V30

Shared, access and specialized interfaces

V30 connects projects where multiple systems, owners or rules meet.

Solar PV: roof attachment, structure and flashing

V32

Post-disaster and legacy systems

V32 connects contamination, storm damage, legacy materials and recommissioning before rebuilding.

Hail: roof and envelope impact assessment

V47

V47 interfaces not to miss

These details are small on a drawing but can control water, structure or durability.

Tile movement jointsRoof-wall kickoutRoof-edge drip