Research on roof cladding

RESEARCH 10/05/2011

1. 4 D’s for cladding , What /Why

2. Type of exterior claddings, 3 types + how to fix them?

3. Building Paper , What for / Why

4. Cavity system, Why ,How, Where

Roof Cladding-Building and house should have a roof that can keep the water out from rains, keep heats out from sun, and keep winds out from windy conditions. There are many roofing systems such as metal and tiles, rely on overlapping cladding components to keep the water out. If there is too much water, or in very windy conditions, water may enter through the gaps. Design and materials are very important to prevent problems like water enter through the roof to the inside of the house, that could damage the walls or rains can be drops on the floor etc.

If you want to use water from the roof for household, there are few system is compatible with water collection from my research.

The roof covering can be made of:

· Profiled metal roofing (e.g. corrugated *metal with curve*) - Metal is very strong and light, and can be constructed very quickly maybe cheaper to purchases compare to another materials.

· Pressed steel tiles

· Clay or concrete tiles- are heavy and need additional framing, and tiles overlap each other to keep the water out. Tiles may need to be sprayed from time to prevent moss and lichen growth.

· Synthetic butyl rubber sheet –is use for roofing of commercial buildings and sometimes in domestic situations. It is usually laid on a plywood base. It is flexible, UV –resistant and long lasting. It can be used on roofs of different shapes, including flat roofs.

· Shingles-can is made of materials such as asphalt, concrete, clay, metal butyl rubber or timber. Shingles overlap to keep the water out, so the roof pitch must to keep water out and not be too flat.

· Bitumen membrane- Bitumen impregnated cellulose fibre is a pre-finished sheet product use in both wall and roof claddings. It generally comes in a corrugated profile and is lapped and fixed in a similar way to traditional metal roofing. The bitumen impregnated cellulose fibre may need to repaint after long period.