Roofs (Roof types, Roof members, Roofing materials etc.)

1. ROOFS
Madujith Sagara Chandra
Civil & Structural Engineer
MEng (UWE, Bristol, 1st class)

2. 2
Roof Classification
• Flat Roof ( the pitch < 10deg.)
• Pitched or Sloped Roof (10 deg.< pitch< 70 deg)
(Pitch over 70 deg is considered as walls).

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Pitched Roofs
• Lean-to-roof
• Gable roof
• Hip roof
• Gambrel roof
• Mansard roof
• Deck roof

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Other than that ????????

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Butterfly Roof

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Conoid Roof

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Hyperbolic Paraboloid Roof

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Waved Roof

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Pleated Roof

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Radial Pleated Roof

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Shed Roof

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Skylight Roof

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Shell Roof

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Vaulted Roof

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Roof Members
• Beams - 75x125, 100x100, 100x125, 100x150, 100x175, 100x200
• Purlins - 75x125, 75x150, 50x100,50x125
• Wall Plate - 75x100, 75x125
• Ridge Plate - 50x150, 50x175
• Hip Rafter - 50x150
• Valley Rafter - 50x150
• Rafters - 50x100, 50x125
• Battens - 50x50
• Reapers - 50x25

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Structure of a Hip Roof

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Structure of a Hip + Gable Roof
Jack rafters
Valley rafters
Ladder frames
Common rafters
Ridge
Purlins
Hip rafters
Wall plate Gable wall

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Structure of a Gable Roof

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Roof covering materials

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Thatch covering

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Wood Shingles

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Plain Tiles

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Curved or Pan Tiles

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SpanishTiles

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Italian or Allahabad Tiles

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Inter-Locking Tiles

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Asbestos Cement Sheets

40. THANK YOU
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