RoofConstruction-Terminology

Here are 14 no common  roof shapes  in the  construction of the roof . Also, we will discuss  roof terminology  and roof structure terms  briefly. Fig: 1.1 Duo pitched roof. This is the most common roof shape with equal pitches on either side, i.e. angle A equals angle B. Fig: 1.2 Asymmetric roofs; angle C is not equal to angle D. Fig: 1.3 Mono pitched roof; angle E equals 90°. Fig: 1.4 Truncated duo pitched roof; angle F equals angle G. This truss form is often introduced into domestic housing in conjunction with the conventional duo pitched roof to form an interesting roofline. Fig: 1.5 Fink truss shape. This is the most common trussed rafter form used on spans of up to 8 to 9 m. Fig: 1.6 Fan truss shape. This is used on larger spans and is a common trussed rafter form. Fig: 1.7 Double ‘W’ shape. This is used on spans above 14 m and is not often used on housing. Fig: 1.8 Howe four-bay truss. This is often used in trussed rafters ...