In the uk a concrete tiled roof would normally have rafters at 600 mm 24 in centers roof battens at 300 mm 12 in centers and ceiling joists at 400 mm 16 in centers.
Roof members names.
Joist in a flat roof a horizontal structural member over which sheathing is attached.
A member that joins the top and bottom chords of a truss to form a triangular pattern.
It is a type of resistant moulding that prevents water flowing near roof openings from infiltrating the roof.
Made of fibreglass and asphalt shingles protect the roof from rain and lend a house character.
One of a series of diagonal members of the truss that meet at the apex in order to support the roof deck and its loads.
Webs may carry tensile or compressive forces depending on their position in the truss.
Roof trusses sundry timbers connected to trusses roof trusses terminology general.
A waterproofing layer that protects the roof valleys from leaking.
The united states still uses imperial units of measurement and framing members are typically spaced sixteen or twenty four inches apart.
Pitch slope the number of inches of vertical rise in a roof per 12 inches of horizontal distance.