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1.
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Additional
shaped pieces of mesh are bedded around all wall openings. |
2.
|
Extra
mechanical fixings are used around all wall openings at 300mm centres
max. |
3.
|
The
chimney may be treated to match the finish on the main walls. |
4.
|
102m
polyester coated aluminium verge accessory with jointing collars at
2.5m centres. Range of sizes exist to suit varying insulation slab
thickness. |
5.
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Undercill
or overcill extenders can be supplied in 1.2 - 3.0mm thick polyester
coated aluminium with matching push fit end caps for site fabrication.
Cill extenders may also be site measured by Thermaloc technical personnel
and factory fabricated with one piece welded end caps. Cill details
are also available in moulded GRP or extruded GRC sections. |
6.
|
Insulation
slabs overlap alternate courses and are mechanically fixed 150mm in
from arris and every 300mm vertically. |
7.
|
At
party wall positions, the EWI system may be terminted using a full
depth stop bead or an external angle bead. The render finish is returned
for teh full depth of the system.
N.B. Where the adjoining property is also being treated, allow for
fitting Thermaloc expansion joint/movement joint bead. |
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|
8.
|
Where
possible, a reduced thickness of insulation slab may be returned at
opening reveals and heads dependent on window or door frame thickness.
External angles are reinforced with polyester coated galvanised steel
or stainless steel angle beads.
Where frames are too small, mesh and render alone may be used. A contrasting
colour may be used at reveals. |
9.
|
1200mm
x 600mm x thickness insulation slabs are fixed using selected fixings.
N.B. all fixings are chosen subject to site pull out testing. |
10.
|
Mesh
reinforcing fabric bedded into adhesive render coat and allowed to
dry for a minimum of 12 hours, but not exceeding 24 hours, before
render finishing coat is applied. |
11.
|
All
external building corners are reinforced with polyester coated galvanised
steel or stainless steel angle beads to give maximum impact resistance. |
12.
|
Trowel
applied Wetherbuild dashing mortar is through coloured and can be
dashed with a wide range of mineral aggregates, or finished with a
special finish (see special coatings). |
13.
|
The
base of the system is reinforced by the use of a full depth bellcast
bead in polyester coated galvanised steel or stainless steel and finished
with a plastic nosing available in a limited range of colours. Line
of base level is usually set at DPC level. |
14.
|
Plinth below DPC level of the existing wall may be painted with Wetherbuild
masonry paint. |
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