PERFORMANCE 

PRINCIPLES OF A VENTILATED RAINSCREEN SYSTEM

THREE RAINSCREEN PRINCIPLES:

•  First Line of Defence

    -  Reduces the moisture load on cladding

    -  Minimise rainwater passage into the wall

•  Second Line of Defence

    -  Intercept water

    -  flashed, drained, vented air cavity + water-resistant membrane

•  Air Barrier System – Ventilation Effect

- Reduces the static air-pressure difference across the  cladding, creating a “chimney effect.” 

Only horizontal joints open

Vertical & horizontal joints open

THERMAL PROTECTION: THE STACK EFFECT

CLADDING

CAVITY

INSULATION

INNER WALL

SUMMER

•  80% heating flux reduction from sun radiation

•  Promotes the thermal exchange of air​

•  Offers performance that is equivalent to a facade protected by shadows

Summertime heat transfer

CLADDING

CAVITY

INSULATION

INNER WALL

WINTER

•  Allows for the ventilation of any moisture created by condensation and or precipitation.

•  3 - 36% energy savings*

Wintertime heat transfer

Wintertime heat transfer

 

ADVANTAGES OF USING PORCELAIN PANELS

PHYSICAL PROPERTIES

•  Compact
•  No water absorption, impermeable: no efflorescences
•  Flexi resistant
•  Low thermal coefficient - refractory
•  Resistant to freeze-thaw cycles
•  Thermal shock resistant
•  Crack resistant
•  Scratching and abrasion resistant

CHEMICAL PROPERTIES

•  Resistant to chemical corrosion (acid/alkaline)
•  Resistant to stains
•  Resistant to graffiti (anti-graffiti)
•  Resistant to cleaners and pollution

GREEN MATERIAL

•  Natural product - no volatile compounds
•  Up to 100% recyclable

AESTHETICS

•  Wide range of formats, colors, finishes, textures

PRACTICABILITY

•  Easy replacement of panel & identical finish

•  No maintenance

•  Self cleaning with heavy rainfall

WEIGHT COMPARISON

HEAVY (15 lb/sqft)  

•  Concrete

•  Natural stone

SEMI-HEAVY (6-15 lb/sqft)  

•  Stone

•  Concrete

•  Ceramic 

•  Brick

LIGHTWEIGHT (6 lb/sqft)  

•  Porcelain panel 

•  Plastic

•  Wood 

•  Fibre-cement  Board

•  Glass 

•  Composites

•  Laminates 

345 Horner Avenue, Suite 200 Toronto, Ontario, Canada,  M8W 1Z6     T/ 416 252 6165 Ext 126     E/ info(at)bildtec.ca