Brimstone Ash Cladding

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Brimstone ash is a new breed of thermally modified wood for external timber cladding and decking installations.

Drawn exclusively from woodlands across England and Wales, Brimstone is the first and only thermally modified wood produced from locally grown trees.

Brimstone ash is produced by heating British grown ash to 210 degrees in a controlled atmosphere. The extreme heat alters the cell structure of the wood, removing moisture, extractives and cellulose. This natural, toxin-free method results in natural wood that is very durable, stable and consistent.

The appearance of Brimstone ash is dark brown with relatively few knots and a distinct wood grain. If left uncoated Brimstone ash will weather naturally to a grey patina or alternatively it is possible to coat the product with an oil based UV resistant coating to maintain a brown colour.

Brimstone ash is classed as very durable (Class 1 EN 350-2), making it a high quality and locally grown alternative to imported Canadian cedar cladding and tropical hardwoods such as Iroko.

Available as vertical timber cladding, horizontally timber cladding, profiled cladding and sawn cladding. Profiles available include shiplap, halflap, tongue and groove, matchboard and square edge. Cladding profiles can be both face fixed or secret nailed. Bespoke cladding profiles are available.

All Brimstone products are derived from well-managed British woodland. GIB certified.

Platform Compatible Version Certified to
IFC IFC - 1 2.0
Revit Revit 2017 + 1 2.0

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Properties and values

IFC
IfcExportAs
IfcCoveringType
IfcExportType
CLADDING
COBie
BOS_General
NBS_Data
CladdingOptions
Brimstone wood, brimstone cladding, cladding, weatherboard, timber cladding, exterior cladding, modified timber cladding, hardwood cladding, thermally modified wood
FireRetardantTreatment
Untested
HowToFix
Stainless steel (SS) nails, face fix with 1 x 50 mm SS ringshank nail per batten or secret fix with 1 x 40 mm SS ringshank nail per batten (selected profiles) or second fix nail gun 2 x 50 mm SS brad nails per batten into face at opposing angles
InsectResistance
Thermally modified wood is resistant to insect attack when used above ground contact
Lengths
Random 1500 - 3000 mm +
MoistureContentInformation
2ȓ4% (moisture content is stable in exterior conditions)
MovementClass
Very small
NaturalDurability
Class 1 (EN350-2)
Profile
n/a
ProfileOptions
Halflap (VHL1, VHK2, VHL3, VHL4, VHL5, VHL6, VHL7), Tongue and Groove with v-joing (VTG1, VTG2, VTG3, VTG4, VTG5, VTG5A, VTG6), Shiplap (VSL1, VSL2, VSL3), Splayed (VSP1)
QualityOfTimber
EN942:2007 - J20, clean with occasional small sound knots
ReactionToFireClassification
Euroclass F (untested)
ReactionToFormaldehyde
E1
ResistanceToFixings
High
ResistanceToImpact
Medium to high
SuppliedBy
Vastern Timber
TreatabilityClass
Resistant
Weathering
More consistent than natural wood due to lack of extractives
WhenToFix
Year round
Pset_CoveringCommon

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