System Logic
Roof and Wall Membrane Applications
Define the layer position first, then separate rainwater drainage, air leakage and vapour diffusion paths.
Exterior breathable weather barrier
Confirm material function, continuity, interfaces and inspection evidence at this layer before it is concealed.
Insulation and structural substrate
Confirm material function, continuity, interfaces and inspection evidence at this layer before it is concealed.
Interior air and vapour control layer
Confirm material function, continuity, interfaces and inspection evidence at this layer before it is concealed.
Ventilated drainage cavity and cladding
Confirm material function, continuity, interfaces and inspection evidence at this layer before it is concealed.
Design and installation checks
- Mark each membrane on the section drawing
- Trace rainwater and vapour paths separately
- Coordinate field, opening, penetration and termination details
- Link product batches to installed areas