Map drains, thresholds, guards, penetrations and leak history.
V18 — specialized system
Roof deck over living space
Coordinate membrane, slope, drains, thresholds, guards, loads, penetrations and traffic surface when a roof becomes a deck.
Checked: 2026-08-22
Traffic surface must not block drainage or blindly penetrate the membrane.
Leak over living space, unknown structure or new guard anchorage: professional design before work.
Useful tools / data
- Drain/threshold plan
- Membrane assembly
- Loads and guards
What the professional checks
- Design membrane/drainage
- Verify loads/anchors
- Coordinate traffic surface
Sources and limits
Triage prepares decisions and quotes; it does not replace permits, calculations, inspections or regulated trades.
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
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.
Explore: Remaining system checks not to miss
Remaining system checks not to miss
This section covers issues that can block a project, cause a loss or become expensive once concealed.
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.
Explore: Specialized systems to cross-check
Specialized systems to cross-check
This section completes gas, soil, water, fire, climate and structural interfaces.
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.
Explore: Often-overlooked service interfaces
Often-overlooked service interfaces
This section connects systems that cross utility, plumbing, HVAC, envelope and metering boundaries.
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.
Explore: Finish and service details to verify
Finish and service details to verify
This section connects small details that become costly once finishes are closed.
Explore: Household safety and compliance details
Household safety and compliance details
This section connects smaller risks that often fall between finishes, appliances, plumbing and local code.
Explore: Shared, access and specialized interfaces
Shared, access and specialized interfaces
This section connects projects where multiple systems, owners or rules meet.
Explore: Post-disaster and legacy systems
Post-disaster and legacy systems
This section connects contamination, storm damage, legacy materials and recommissioning before rebuilding.
Explore: Detail interfaces
Detail interfaces
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.