Indicative detailing - The Hempcrete Topic: Designing and Building with Hemp-lime - page 551

Bolt-on rafter ends will not be suitable for every building design, but in our opinion they
bring so many advantages that they should be incorporated wherever possible.
Another situation in which airtightness at the eaves can be difficult to achieve occurs when
a lightweight quilt insulation is used in the roof (also shown in Figure 28). The answer
to this is to use an insulating wood-fibre sarking board to compress the quilt insulation
against the top of the hempcrete wall, as described on the following pages.
Figure 28. Prefabricated bolt-on eaves rafter ends. (a) Rafter ends are attached to the fixing timber
before fitting to the wall. (b) Rafter ends in the finished wall.