Wonderbuilds SA 600 Vapour Control Layer 40m x 1m

Wonderbuilds SA VB 600 is a self-adhesive vapour control layer for specified warm roof systems. The current Shopify record identifies this product as Wonderbuilds SA VB 600, even though the website URL includes an older Technoelast name. Its reinforced SBS-modified bitumen construction, aluminium-faced top surface and peel-off release film are intended to provide a bonded layer beneath a compatible roofing build-up.

Self-adhesive vapour control layer for warm roof construction

• Roll size: 40m x 1m, as shown in the live product title
• Self-adhesive application with peel-off siliconised film
• Reinforced SBS-modified bitumen with an aluminium-faced surface
• Existing details identify profiled metal decking and plywood among potential approved substrates
• Existing supplier guidance specifies Wonderbuilds SA Primer

Choosing and using Wonderbuilds SA VB 600

Confirm that the entire warm roof build-up, substrate preparation, overlaps, upstands and detailing are approved for this VCL before ordering. The product's stated cold-flexibility performance should not be treated as permission to install in all weather; application temperature and substrate conditions must follow the current datasheet. Use the specified primer and compatible roofing components.

Explore vapour control layers and related roofing membranes.

How the vapour control layer fits into a warm roof

A vapour control layer is one part of a complete roofing system. It is typically positioned on the warmer side of the thermal insulation to help manage moisture vapour moving into the roof build-up. Incorrectly detailed laps, unsealed penetrations or breaks at edges can undermine that function, so the continuity of the layer matters as much as the membrane selected.

For this Wonderbuilds SA VB 600 roll, plan the number of 40 x 1m rolls using the full roof geometry, allowing for designed overlaps, upstands and details around outlets. Check the approved deck types, primer, substrate dryness and application limits in the current installation guidance. Reflective aluminium facing should not be interpreted as a stand-alone insulation value for the complete roof.

Can the stated 40m² roll area be used as net roof coverage?

Not without adjustment. The nominal roll area is 40m², but effective coverage is reduced by laps, upstands, trimming and other details. Calculate against the specified laying method.

Related products and useful resources

You can browse flat roofing systems while planning the work. You can also compare roofing accessories while planning the work.

Frequently asked questions

Is Wonderbuilds SA VB 600 torch-applied?

No. The existing product details describe a self-adhesive membrane with a removable release film. Follow the manufacturer's fitting instructions.

Do I need to prime the deck first?

The existing product information states that Wonderbuilds SA Primer is required. Confirm substrate suitability and primer application rates from the supplier's instructions.

What roll size is supplied?

The current listing is for a 40m x 1m roll. Allow for laps, upstands and cutting waste when working out coverage.

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Roof Tiles & Fittings:

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Multiple Products from the Same Supplier

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