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Get a 1-S Solution for all timbers with Fireshield

When you need an intumescent coating for timber, Fireshield has clear and pigmented systems to suit your project. Choose from Fireshield 1FR (clear) or Fireshield 2FR (pigmented) system, both best spray applied in a single coat. Fireshield 1FR must be topcoated with 1FR TOPcoat to protect it from moisture and wear, while Fireshield 2FR may be topcoated with Resene SpaceCote in your choice of Resene colours.

Fireshield was first imported into New Zealand for South Island projects where a clear finish was required on an accommodation project designed using prefabricated building systems to shorten the build and reduce construction costs.

The Papanui Club building utilises Fireshield a timber intumescent coating

The goal was a steel-less, plaster-less timber building that performed well. This needed resolution of many issues surrounding fire resistance ratings of Cross Laminated Timber (CLT) from XLam in Nelson and compliant collars for penetrations in solid timber etc. A straight charring rate couldn’t be relied on, as eventually the outer laminate of timber would fail, exposing fresh uncharred timber to a now ferocious fire. Full scale testing was undertaken to clarify the performance of CLT as a fire separation, and testing of fire collars for timber was expedited.

The final hurdle was surface finish. The passion to expose the timber structure was threatened by the cost of coating it to achieve a group 1-S rating. Estimates where coming in at a similar m2 rate to CLT panel itself! The fire engineer working on the project had helped develop a timber intumescent product back in Sweden some twenty years ago. Suddenly with the new MBIE guidance, they had a compliant, cost effective product that would work. Pallets of Fireshield were flown in and used to coat almost every surface in the lodge to achieve a sustainable ‘prefab’ 60 minute, group 1-S construction system.

The Fireshield coated solution was next used on The Papanui, a 3000 square metre glulam club with timber veneered acoustic ceiling panels throughout, saving both labour and product costs. The Fireshield-coated solution was 30% cheaper than the next best option and avoided fire rated MDF’s and the high VOC’s that come with it.

As interest grew in the product, Fireshield was born. Fireshield products are now available exclusively through Resene providing a nationwide network of technical support to assist with projects throughout the country where a premium timber intumescent finish is required.

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