Ideal for both internal and external wall insulation (IWI/EWI) applications, the Stone Wool based board features the same ‘honeycomb’ surface structure as Multiboard, to create an A1 non-combustible certified render-backer which is weatherproof. This means they simply will not degrade, whatever the weather throws at them.
The Fireboards are available in thicknesses of 20mm, 50mm and 100 mm, in a standard size of 600 x 1200mm, while the polymer modified mortar coating is applied to both faces. Fireboard can also be specified for internal use on walls or ceilings to take a plaster finish. The 20mm Fibreboard, though, is especially suited for lining window and door reveals, to tackle cold-bridging and improve overall U-values. Then while the thermal conductivity of 0.037 W/mK delivers very good thermal insulation thanks to the tiny air pockets within the micro-fibre structure of the Stone Wool, this structure also serves to interrupt the pathway for sound transmission through solid materials such as stonework or other masonry.
The boards have a nominal density of 150 kg/m3, while their core material offers a compressive strength of 90 tonnes/m2. The Marketing Manager for Marmox, Grant Terry, commented: “The introduction of Fireboard into our range significantly enhances our offer to the construction industry, meaning we have an A1 non-combustible backer board for internal or external use, which can safely be installed across timber or steel framing systems as well as masonry. Also contributing significant thermal and acoustic performance, we expect Fireboard to find applications in new-build and refurbishment work within the residential, commercial and other sectors. We are already seeing strong interest from specifiers and specialist fire protection contractors as we make the industry aware of Fireboard’s multiple benefits, through our sales team, the trade press, industry events and our social media.”
So sure is Marmox of Fireboard, its website states: “So, what sets it apart? A1 fire protection, sound absorption and thermal insulation all in a thin, lightweight yet rigid board, which is weather resistant and will not degrade - however wet it gets! To top it off, no pre-treatment is needed - you can render or plaster directly onto it. Sound too good to be true?”
Marmox Fireboard has been tested to prove compliance with BS EN 1182, EN 1716 and EN13823 (Resistance to fire test) conducted by UKTC, along with other testing completed by the BRE. Technical details can be found in Marmox’s technical brochure, which can also be downloaded here.
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