Products
MicroPro® treated timber offers many benefits over other preservative technologies including significantly improved corrosion performance.
MicroPro treated timber exhibits corrosion rates when in contact with metal fasteners and connectors similar to CCA treated timber and untreated timber.
Steel fixings and fastenings in contact with MicroPro treated wood shall be a minimum of hot dipped galvanised or, where specific exposure or microclimate conditions create a more severe corrosion risk, type 304 stainless steel should be used.
See NZS 3604 tables 4.1, 4.2 and 4.3 for specific details.
Aluminium building products may be placed in direct contact with MicroPro treated timber products used for interior and above ground exterior applications such as:
Examples of aluminium products include roofing, gutters, door and window trim, flashing, nails, fasteners and other hardware connectors.
However, MicroPro treated timber in direct contact with aluminium products should only be used in code compliant construction applications that provide proper water drainage and do not allow the timber to be exposed to standing water or water immersion.
We recommend you contact the aluminium building product manufacturer for their recommendations regarding their aluminium products in contact with MicroPro treated timber used in ground contact applications or when MicroPro treated timber is exposed to:
Also check with the aluminium product manufacturer regarding compatibility with other chemicals and cleaning agents.
Download the MicroPro® Fastener & Hardware Information Sheet.