Rafter

Rafters are the traditional method of constructing a sloping roof frame, predating the widespread adoption of pre-fabricated trusses. In a rafter roof (also called a stick-framed or cut roof), individual timber members are cut on site to the required length and angle, then fixed at the top to a ridge board and at the bottom to the wall plate. Ceiling joists span horizontally between the wall plates to tie the base of the rafters together and prevent the walls from being pushed outward by the roof load. Rafter construction is still used where the roof geometry is complex, where cathedral (open) ceilings are desired, or on renovation and extension work where matching the existing roof structure is necessary. Common rafter sizes in Australian residential construction range from 90x45mm to 190x45mm, depending on the span, spacing, and load requirements. Rafters are typically spaced at 450mm or 600mm centres. In Gippsland, rafter-framed roofs are found on many older homes and heritage buildings. During roof replacement work, Town & Country Roofing inspects all rafters for signs of rot, termite damage, splitting, or sagging. Any compromised rafters are sistered (reinforced with a new timber member bolted alongside) or replaced to ensure the roof structure is sound before the new covering is installed.