Building Envelope
All major building assemblies that act as a barrier between external and
internal space.
Eg. Roofs, Exterior Walls, Ground Floors, Basement Enclosure
Functions:
- Shelter
- Security
- Maintain internal environment
o Damp & moisture protection within building spaces/assemblies
o Thermal protection
o Comfortable internal temperature/humidity
Building Envelope Failures:
Leaks
o Water ingress
o Air leakage – causing heat loss
Damp
o Environment (humidity)
o Building fabric (moisture saturation within assemblies/components)
Heat Loss/Excessive Heat Gain
o Poor thermal resistance
Penetrating Damp:
Water penetrates the wall assembly by
o Wind-driven rain
o Snow
o Ice
All major building assemblies that act as a barrier between external and
internal space.
Eg. Roofs, Exterior Walls, Ground Floors, Basement Enclosure
Functions:
- Shelter
- Security
- Maintain internal environment
o Damp & moisture protection within building spaces/assemblies
o Thermal protection
o Comfortable internal temperature/humidity
Building Envelope Failures:
Leaks
o Water ingress
o Air leakage – causing heat loss
Damp
o Environment (humidity)
o Building fabric (moisture saturation within assemblies/components)
Heat Loss/Excessive Heat Gain
o Poor thermal resistance
Penetrating Damp:
Water penetrates the wall assembly by
o Wind-driven rain
o Snow
o Ice
