Installation



Profiles:




 

Like any other wood product, Evoca undergoes some degree of linear expansion and contraction with the changes of weather and season. To compensate for these effects the following installation standard must be adhered to:

 
Recommended Spacing

• 4mm between boards
• 6mm gap between the deck board and any solid structure such as a wall or post.
• 2mm gap between board ends

This spacing will allow for air circulation and expansion as the boards season.
 

Handling

Your Evoca bamboo decking should be allowed to acclimatise in your area for a few days prior to installation.


Cutting

Premium carbide tipped saw blades are recommended for cutting boards.
 

Laying

We recommend the Sharkstooth hidden nailing system www.sharkstooth.co.nz . If fixing using traditional nail or screws we recommend you use stainless steel fixings and predrilling is essential. Evoca can be laid reeded or smooth face up.
 

Finishing

Evoca engineered bamboo decking comes either uncoated or precoated with Cutek CD50.

In order to be covered by the warranty Evoca should be maintained with regular applications of Cutek CD50 Liquid Art with colourtones added.  Evoca that has been supplied in its precoated form should have a second coat applied within a month of installation. Evoca supplied not precoated should be coated on all sides prior to installation, and again within a month of installation.

CD50 is easy to apply but care should be taken to apply it sparingly and according to the instructions on the label. Recoat as necessary to maintain original appearance. Depending on the location and climate the re-application frequency required is approximately once a year.

The warranty offered on the performance of Evoca does not cover natural aging, 'silvering' or 'greying off'.  We strongly advise against the use of any other stain or coating on Evoca decking. Coatings that form a surface film-build can cause premature staining and failure resulting in an unsightly mould-like appearance.

For further technical infomation regarding CD50 please visit www.chemisys.com.au or email peter@chemisys.com.au or ph 0438 923  248 for list of stockists.
 

Fastners

Stainless steel screws are recommended. Drive 50mm countersunk screws with a slow speed drill into a 3mm pilot hole. Use 2 fasteners to attach decking to each joist. Fasteners should always be driven in at a 90 degree angle to decking surface. We recommend the Sharkstooth hidden nailing system www.sharkstooth.co.nz .
 

Span

The following is intended as a guide only. Local building codes and regulations should be followed.
Generally 90 x19 can be installed with 450mm joist centres.


Under Side Ventilation

Build your deck so that the surface is at least 300mm above the ground. It is sound advice to provide adequate air circulation underneath any deck. In wet areas or over water, additional clearance is recommended. In close to ground applications, a vapor barrier may be necessary to prevent moisture absorption.