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 →

Explore: Systems to check before closing the work

Systems to check before closing the work

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

Renovation dependenciesShower waterproofingRoof penetrations and flashingCode versions

Explore: Advanced diagnostics to cross-check

Advanced diagnostics to cross-check

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

Roof snow and iceJobsite safety and silicaCuring, drying and acclimation

Explore: Specialized systems to cross-check

Specialized systems to cross-check

This section completes gas, soil, water, fire, climate and structural interfaces.

Wildfire and embers

Explore: Specialized diagnostics to verify

Specialized diagnostics to verify

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

Low-slope roofRoof deck over living space

Explore: Edge systems to integrate into the project

Edge systems to integrate into the project

This section covers interfaces that become important when multiple home systems interact.

Skylight/tubular daylightingGreen roof

Explore: Often-overlooked service interfaces

Often-overlooked service interfaces

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

Electrical service, mast and meter

Explore: Project risks and overlooked interfaces

Project risks and overlooked interfaces

This section 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

Explore: Shared, access and specialized interfaces

Shared, access and specialized interfaces

This section connects projects where multiple systems, owners or rules meet.

Solar PV: roof attachment, structure and flashing

Explore: Post-disaster and legacy systems

Post-disaster and legacy systems

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

Hail: roof and envelope impact assessment

Explore: V47 interfaces not to miss

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