Ridge - The top of the roof and the junction of the sloping sides It is the Apex where the rafters meet, Purlin - This is a beam that supports the mid span of the rafters and is at 90 degrees to the rafters., Firings - These are best described as long wedges and are placed on top of rafters to create a slope , Roofing Batten - These are thin pieces of wood 38x50 or 45x50 which support sheet roofing or tiles., Wall plate - This is a timber plate usually 100x50 or 100x75 fixed to the top of the brick wall It provides a fixing for rafters and joists.It is fixed with screws and plugs and also straps down the wall., Roof tiles - Can be made from clay, concrete, slate ,plastic, steel or timber fixed in overlapping rows and nailed to the battens , Fascia - Horizontal member that trims the end of the rafters and supports the guttering .Timber or Plastic, Wind bracing - Traditional Hand cut roofing or Trusses frames made in a factory they must be braced ., Roofing Felt - You can buy Heavy duty hot torch applied felt in 3 layers for waterproofing a flat roof Or you can buy breathable felt to cover over rafters., Flashings - Where there is a joint/abutment or angle on a roof where there is a chimney or a roof meets a wall. Normally lead but there are modern equivalents ., Rafter - Main structural component of a pitched roof They rest on supporting walls and are set at an angle., Apex - This is the highest point on the roof or ridge line, Soffit - The soffit is the flat overhang at the gutter line or eaves., Eaves - The name given to the area at the foot of the rafter and includes Fascia and soffit etc, Barge board - The board that dresses the last rafter overhanging a gable end .,

Components of a Roof - match the definitions

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