Introducing Brimstone: British-grown, thermally-modified timber cladding

Brimstone timber cladding is made of locally grown ash, poplar and sycamore, which is thermally modified to produce a highly durable and stable cladding. Tom Barnes, managing director of Vastern Timber, introduces this innovative product, and explains why it's an ideal choice for external cladding.
Brimstone is produced from Timber certified Grown In Britain. It's relatively knot free and highly stable and durable. Tom explains the benefits of choosing locally grown timber, particularly sycamore, poplar and ash

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I wish these people every success. I’m not expert enough to tell the difference between Brimstone and, say, Accoya but my understanding is that both are thermally modified. I’ve just clad (5 years) barn with Marley Cedral - about 450 square metres. I chose Cedral because we wanted a low or no maintenance cladding that would last 30 plus years. I found out the downsides to Cedral and, truthfully, if I had known about Brimstone at that time, I would have been very keen to learn more about it. I don’t know price or widths or lengths (which amount to %wastage) but I would prefer the natural aspects of Brimstone as compared to Cedral if all other factors such as cost and maintenance were the same. The local PA gave formal approval for the use of Cedral on our building. A couple of years later, the same Council said that it was inappropriate and wanted us to replace it. Of course, they said nothing about the cost of removal, new material and fixing (it’s a Council - don’t expect logic, common sense or respect). Those costs would have been something we would have had to bear. Perhaps not surprisingly, we declined to oblige the Council.