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Cladding should be securely nailed to a sound timber framework that has been suitably treated with preservative. |
Certification
Building Regulations |
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Design Considerations
 Ventilation
is recommended for all installations in order to disperse moisture
and excess heat, and is essential where insulation or coloured
cladding is used.The
designer should aim to achieve an unrestricted vertical cavity of
at least 25mm between the rear face of the cladding and the
front face of the insulation or membrane. Angle vents
(C061 & C065) are available to close off the base of
the cavity visually, but still allow the passage of air for
ventilation purposes.If a
starter batten is used it should be drilled (10mm) at regular
intervals (max 1m) to allow a vertical flow of air.If
insulation is required it should be fitted between
appropriately spaced horizontal battens, covered with a damp proof
membrane, and vertical counter battens installed.Vertically
mounted cladding will require the initial installation of
vertical counter battening to maintain adequate ventilation. |
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Important Installation
Notes
Battens
should be of good quality softwood of minimum cross section 19 x 38
mm. However, 25 x 38 mm battens are recommended.For
horizontal cladding, main battens are fixed vertically.Intermediate battens to be at maximum
600mm centres.
Additional
battens are required at the base and the head as well as at
reveals, openings and changes of direction.(Fig3)All battens
should be well secured with fixings appropriate to the type of
substrate at not exceeding 600mm centres.Irregularities
in the substrate will be adversely reproduced in the cladding
installation. Packing pieces should therefore be placed behind the
battens where needed.Any starter
batten should be drilled for vertical ventilation, fixed at or
above DPC level and checked for level (Fig1). At junctions with
flat or lean-to roofs, consideration should be given to the
installation of the necessary flashing. |
View Images
CAD Library DXF & DWG drawings of Individual profiles and typical installed conditions
Important Information *Fixings, Fixing Centres, Coverages
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| Installation
Sequence
Perimeter frame battens (Fig2)
Battens round openings (Fig3)Intermediate vertical battens (Fig3) |
Other Guides
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Framing Out for Cladding |
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