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Industry Standard
Arrangements
The following illustrations show some of the
industry standard arrangements. The whole of the supporting timber
framing is not shown because this will depend on the materials of
construction and individual building design.
1. Vertical Cut Junction
 Fig28
shows a Bullnose fascia and bargeboard with a box end made
from a larger depth of the same basic profile and cut at the top
edge to follow the pitch of the roof. This condition also applies
to Square profiles. The return
to the box end is cut from the same profile, retaining the bottom
groove, thus providing support for all outer edges of the soffits
and presenting a neat, uniform appearance. The return
should be cut a little higher than the bare dimension, so that
there is no gap at its junction with the bargeboard soffit. Junctions
between fascia, box end and bargeboard are finished with matching
corners and joints.
2. Splay Cut Junction
Fig29
shows a detail giving the same configuration of outline, but with
the box end splay cut at its junction with the bargeboard.
3. Add-on Sections
Fig30
shows the bargeboard extending to meet the fascia. A triangular
fillet cut from a suitable piece of Swish board is applied above
the bargeboard and fixed with Trimtop nails to the tilt fillet on
the gable rafter. Below, another fillet, retaining the return leg,
is similarly fixed to timber framing supported off the gable
ladder. The
triangular offcuts may be closely butt jointed and finished with
Swish low modulus silicone to the top and bottom edges of the
bargeboard, or vertical link channel (C054) may be used if
preferred. The
return to the box end is cut from a matching board, retaining the
bottom leg, and should be supported by suitable softwood
battens. Junctions
between fascia, bargeboard and box end return are made with
standard matching corners and joints.
4. Uniform Edge
Fig31
shows a method of dealing with Ogee profiles at box ends in order
to obtain uniformity of profile and neat detailing. |
