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Welcome to the secret world of Construction Project Management. In these pages we tell you what building services components we use to make your building.

Pitched Roofs

A pitched roof has two or more sides that slope in opposite directions. This is the most common type of roof construction in the UK.

 

Main features of pitched roof structure

 

Pitched roofs are constructed using a system of rafters, purlins and trusses constructed from timber. The roof is commonly built into a triangular shape which is covered with roofing tiles of varying materials. The tiles feed the water into gutters that surround the roof and channel rainwater down into the drainage system.

Advantages of pitched roofs

 

  • Provide a large volume of loft space

  • Provide improved drainage when compared with flat roofs

  • Long lifespan

  • Wide variety of materials can be used to achieve various architectural styles

 

Disadvantages of pitched roofs

 

  • High cost

  • High maintenance

  • Challenging installation

 

Key Words

 

  • Rafters: timber beams that connect to the exterior walls and frame the shape of the roof

  • Purlins: horizontal structural member that supports the roof covering

  • Trusses: engineered, structural framework of triangulated timbers that provides support for the roof

  • Gutters: open top circular drainage channels installed along the edge of the roof to catch rainwater flowing off the roof and directing it into the downpipes

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