i) E – rafter F- Struct
G- Eaves H- Wall plate
ii) E (Rafter) – To provide support for the roofing materials
F (Strut) – To support the rafter/ holding the weight of the roof
G (Eaves) – Prevent rain from falling on the wall
H- (wall plate)- To support the roof
iii) Chemicals for treating timber
- Tar
- Sodium dichromate
- Copper sulphate
- Arsenic pentoxide
- Old engine oil
- Pentachlorophenox
- Tributyl tin oxide
- Creosote
- Paint
Kavungya answered the question on March 8, 2019 at 07:27
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