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.
Finishing
Evoca will weather to a natural silver-grey if left uncoated. To maintain or enhance the original colour, a high quality penetrating oil finish with UV inhibitors should be used. Before application of sealers, brush and wash the surface to remove any dust, dirt and sticker residue. Avoid products containing linseed oil as these can encourage mould growth. Periodic cleaning with simple soap and water will enhance the appearance of your deck. Evoca can be installed with either the groove or plain finish upward. Evoca comes in uniform long lengths, eliminating the short length issue experienced with traditional tropical hardwood decking. Less unsightly joins and less wastage.
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.
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.