Finishes for hempcrete - The Hempcrete Topic: Designing and Building with Hemp-lime - page 418

the shape of the hempcrete wall (see Figure 13(b) ). If using this approach, care must be
taken not to knock the hempcrete too hard with the window when fitting, as this can result
in damage (just where you don't want it).
Weismann and Bryce describe how to make burnt sand mastic in Using Natural Finishes.
Drip details
A range of beads made from stainless steel or glass-fibre mesh and PVC are available in
varying widths to create a drip (to shed water away from the wall) above windows or at the
bottom of the rendered face of the wall above the plinth.
Natural alternatives include a hardwood timber drip to the window head, and a drip detail
created from slates or tiles bedded on lime mortar over the plinth (see Figure 14(b) ). Note
that if using slate or tile drip details at the top of the plinth, these need to be fixed in place
before the hempcrete is placed.