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RAIN CONTROL (Deflection (1) Site:
Low design
Natural barrier around,…
RAIN CONTROL
Deflection
1) Site:
- Low design
- Natural barrier around
2) Roof:
- Pinched
- Overhang (=§ Rain damage)
-
Drainage
Storage/Mass wall:
- Storage mass
- Moisture tolerance
- Evaporation through mortar
(can shrink!)
:red_cross: Waterproof barrier
Exclusion (perfect barrier):
- Metal-Glass curtain wall
- Joints-perfect barrier too
-
Dry
Processes:
- Evaporation
- Vapour transport/Diffusion
- Ventilation
- Drainage (by gravity)
Vapour
direction:
- Colder: Usually outwards
- Hotter: inwards
- Solar exposure: inwards
:check: Cold > aluminum foil / polyethylene
Hot-humid > Latex paint on drywall
(No low permeance material)
Ventilation
- Clean gap
- Vent holes
above/below window/wall
-
FLASHING
- Outwards slope
- Drip clear of wall/window