The Commercial Timber Guidebook

DURABILITY RISK MITIGATIONS FOR EXAMPLE BUILDING 4

Intervention

Reason for inclusion

To satisfy Principle 3 - Risk identification; Principle 5 - Keep timber dry; Principle 8 - Remove critical vulnerabilities To satisfy Principle 3 - Risk identification; Principle 5 - Keep timber dry; Principle 8 - Remove critical vulnerabilities To satisfy Principle 3 - Risk identification; Principle 5 - Keep timber dry; Principle 8 - Remove critical vulnerabilities To satisfy Principle 1 - Understand material properties; Principle 2 - Specify appropriate materials; Principle 3 - Risk identification; Principle 5 - Keep timber dry; Principle 8 - Remove critical vulnerabilities

Roof to minimum 1:40 falls

End grain sealant applied post machining of panels

Taped joints

GF timber min. 150mm from FFL to external walls. Above FFL to internal walls

Construction phase moisture management strategy

To satisfy Principle 7 - Moisture management in assembly

Install membrane to top face of CLT floors System leak detection (water mains pressure) Localised moisture detectors near timber structure in high risk areas.

To satisfy Principle 7 - Moisture management in assembly

To satisfy Principle 6 - Early intervention

Timber not located close to moisture sources or high risk areas.

Localised moisture detectors in timber

Timber not located close to moisture sources..

To satisfy Principle 1 - Understand material properties; Principle 2 - Specify appropriate materials; Principle 3 - Risk identification; Principle 5 - Keep timber dry; Principle 8 - Remove critical vulnerabilities

Ground level concrete/steel podium

Change to lightweight timber frame in high risk areas

Not required as high risk areas in concrete structure

To satisfy Principle 1 - Understand material properties; Principle 2 - Specify appropriate materials; Principle 3 - Risk identification; Principle 5 - Keep timber dry; Principle 8 - Remove critical vulnerabilities

External down pipes or down pipes in concrete structure

Services in higher durability zones

Service risers and high-risk serviced zones within concrete core.

To satisfy Principle 1 - Understand material properties; Principle 2 - Specify appropriate materials; Principle 3 - Risk identification; Principle 5 - Keep timber dry; Principle 8 - Remove critical vulnerabilities

Alternative material to roof slabs

KEY

Intervention required

Example Buildings

97

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