As construction technology advanced in the 1800s and lumber mills capable of the mass production of wood members appeared, massive overhead beams were gradually replaced by the smaller dimensional lumber used to frame rafters (the sloped members) and joists (the horizontal ceiling members) in home ...
More than 50 years ago I constructed a cathedral ceiling insulated with foam cut to fit between rafters but with an air gap between the foam and the underside of the roof deck, as shown in my sketch at the start of this Q&A. Because I knew the edges of the foam could leak air and ...
The angle posts may be half the length of the ridge ties which are half the length of the rafters. Joists (3) span between the post mounted beam (2) and wall plates (4), to support the loft floor (11). The truss is assembled on the floor, and is then raised and fixed to the ...
The angle posts may be half the length of the ridge ties which are half the length of the rafters. Joists (3) span between the post mounted beam (2) and wall plates (4), to support the loft floor (11). The truss is assembled on the floor, and is then raised and fixed to the ...