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used? Will the protective treatments work properly if and when they are needed?
Meeting industry standards
Independent and species specific Classification Reports from treatment suppliers should be relevant to the timbers you are using and where and how they will be used. They should cover four particular requirements: the timber species; the thick- ness of the timber; whether there will be an air gap behind the timber; and the nature of any backing materials. All are equally important to achieve an assured and effec- tive fire protection.
The new Euroclasses B and C of EN 13501-1 replace the traditional Class 0 and Class 1 fire performance of National Standards and are certainly more robust, measuring a wider scope of fire critical factors. The fire performance typically required for wall and ceiling linings is Euroclass C, whilst higher risk areas, such as escape routes and staircases, requires the Euroclass B standard.
Robin House Children’s Hospice features Dricon fire treated internal claddings
While the CE marking of fire retardant treated timber is not an actual quality approval it does demonstrate that the
production processes for the timbers or board products has been fully independ- ently audited and declares that the product complies with all applicable European Directives and Regulations.
In terms of quality assurance it is prudent to also look for third party accreditation and independent body approvals such as ISO 9001 and 14001, BBA, NHBC, and the WPA. These independent approvals provide the specifier or timber supplier with the reassurance that the fire retardant treatment application process is consistent, controlled and robust.
All-round protection
When specifying you need to be assured that the fire retardant performance of the treated timber is durable in either an inte- rior or exterior end use. Well researched and specified fire retardant timbers will provide permanent fire protection within the timber, and are developed to not require further protection or maintenance during the service life of the building.
Mike Smith is a fire retardants manager at Lonza Wood Protection
Envirograf
®
FIRE PROTECTION COATINGS PROTECT YOUR TIMBERS
FIRE RESISTANCE COATINGS
30 & 60 minutes protection for timber substrates
FLAME RETARDANTS
SBI: B/s1/d0
Call: 01304 842 555
Email:
sales@envirograf.com
WWW.ARCHITECTSDATAFILE.CO.UK
ADF OCTOBER 2016
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