Civil Engineering Reference
In-Depth Information
Diagonal stainless-steel strapping used as a brace.
Image: Peter King
Roof
The main considerations when detailing any modern roof, apart from waterproofing, ob-
viously, are the requirements for airtightness and insulation. The use of cast hempcrete
as roof insulation, as described in
Chapter 17
, has the advantage of introducing increased
thermal mass into the roof structure.
Eaves
The main function provided by good detailing at the eaves is the first defence against pre-
cipitation by means of a good roof overhang. The other important consideration with this
detail in hempcrete buildings is how to form a robust junction between the wall hempcrete
and the roof insulation that is also straightforward to construct and airtight - which can be
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