What is SuperStrand?
Viking SuperStrand is an H3.1 treated strand board; designed by Juken New Zealand specifically as a substrate for asphalt shingles.
As SuperStrand is more rigid and spans further than plywood, it reduces the visibility of sheet joins and any unevenness in the structure creating a flatter and sharper looking roof.
Why is it H3.1 treated?
A treated substrate, H3.1, provides the home owner with peace of mind. The New Zealand Building Code sets the minimum standard. It does not require a treated substrate, for asphalt shingles, unless the building has a skillion roof.
SuperStrand follows best practice by providing a treated substrate, at no extra costs.
Viking Roofspec's pitched roofing systems installed over SuperStrand Sarking with a total weight of up to 25kg/m2 may be considered 'light-weight' for design purposes in accordance with NZS3604.
Viking SuperStrand has been BRANZ appraised, when used in conjunction with our asphalt shingles.
What does this mean? Well, it has been independently tested in New Zealand, by BRANZ, to ensure it can handle New Zealand's harsh conditions and complies with the New Zealand Building Code.
What about installation?
Viking SuperStrand is installed as part of our roofing system for asphalt shingles or EcoStar roof tiles. To ensure a professional, quality finish our products can only be installed by Viking Approved Applicators.
This is all about taking care of the detail and working with our team of professional, trained applicators to ensure that a watertight, professional finish is achieved. There are no cowboys here.
To find an Approved Applicator near you click on the link below.Read More
Working with Viking SuperStrand
Viking Approved Applicators who have worked with Viking SuperStrand have found that it is:
Faster and easier to install as there is no tongue and groove requirements
Easy to handle, carry and pass up through the trussed and onto the roof due to the narrower sheet width, at 800mm
With every strand of the board exposed to the preservative treatment, cut edges do not require further treatment on site
Provides less wastage as SuperStrand has no face grain so it can be laid in any direction, with a maximum span of 900mm
The azoles and permethrins used to protect the board against fungal decay and insect attack respectively are water-based treatments, so no solvents are used. The preservatives used are organic biodegrade compounds.
The manufacturing process ensures that every strand is treated to H3.1 before the board is made. This ensures that the treatment is distributed throughout the full thickness of the board (unlike mainstream treatment processes). Any cut edges or penetrations do not require further sealing in order to maintain full protection.