Overview
Thermasheet may be used as a lightweight substrate in selected external applications including soffits, bulkheads, facade features, columns and other architectural forms, subject to the project design, building classification, wind loading and finish system.
Key points
- Use corrosion-resistant support and fixings
- Seal joints and exposed edges
- Fully encapsulate with an approved exterior finish
- Provide movement joints, flashings and drainage detailing
Installation steps
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1
SUPPORT
Provide a structurally adequate, corrosion-resistant support system.
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2
FIXINGS
Use fasteners and washers suitable for the exposure category and substrate.
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3
SEAL
Seal all board joints, penetrations and exposed cut edges with Thermasheet MSP Sealant as detailed.
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4
ENCAPSULATE
Fully encapsulate the exposed board face with a compatible reinforced render, microcement or approved exterior coating or tile system.
Exterior clad in Thermasheet ready for render -
5
REINFORCE RENDER
For rendered facades, use full-surface reinforcement mesh where required by the render-system manufacturer, with additional diagonal reinforcement at openings and stress points.
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6
MOVEMENT JOINTS
Maintain required control and movement joints through the board and finish system.
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7
SHED WATER
Detail flashings, heads, sills and penetrations so water is shed from the building envelope rather than relying on sealant alone.
