StrandSarking
What is Strandsarking?
Viking StrandSarking is an H3.1 treated strand board; designed by Juken New Zealand, as a substrate for pitched and low-slope membrane roofs.
As StrandSarking is more rigid and spans further than plywood, it reduces the visibility of sheet joins under asphalt shingles and forgives unevenness in the structure creating a flatter and sharper looking roof.
Unlike plywood, the extra length spans an extra truss; resulting in a stronger substrate and less double-nailing at sheet edges.
The manufacture process involves the soaking of individual woodchip strands in the treatment before they are pressed into StrandSarking sheets. This ensures every sheet is fully treated throughout its entire thickness, as opposed to the conventional methods of treating wood, where untreated sheets are merely sprayed post-manufacture with the assumption that the treatment will pentrate to the board's centre. The treatment used for StrandSarking is solvent-free.
StrandSarking has no face grain so it can be laid in any direction (minimising wastage) and can span up to 900mm.
Product Features
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Solvent-free treated substrate
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Every strand is individually treated
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Manufactured in New Zealand
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Designed for climatic weather extremes
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More rigid substrate
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Board dimensions: 3600mm x 800mm
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Square-edged profile
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Installed only by a Viking Approved Applicator
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15-year product warranty
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BRANZ Appraised (Appraisal No. 713)(both pitched and low-slope membrane roofs)
For a list of Viking StrandSarking accessories click here.
For all Viking StrandSarking specification documents, CAD details, product technical statements, and BRANZ certificates click here.
