Roof drains are provided along the rain water channel to drain rain
water away. A doom grating is provided to prevent rubbish from going into
the drain which will block the drain.
Legend :
- 15mm thick ( 25mm thick for deck ) cement sand screed
- 25mm thick ( 50mm thick for deck ) insulation
- Roof and deck sheating felt
- 20mm thick mastic asphalt
- Wire mesh
- 35mm thick precast concrete tiles roof finish
- 75x75mm cement sand fillet
- Joint sealant
- Lead caulking
- Roof slab
- Gasket
- Rainwater down pipe
- Roof and deck drain with dome grating
- Caulking fillet
- Roof wall finish
- 45x145mm unglazed extruded facing tile finish
