The Crannog

The Crannog

Location:    The Crannog, Mallaig

Architects:    Nigel Johnston

Wood Supplier:    Gilmour & Aitken

Contractor:     Knoydart Construction

Wood Species:       Greenheart, Larch, Cedar

With the high international demand for European Oak, the knowledge and connections of TTF Member Gilmour & Aitken to source and process the required quality of material is an asset on any design or restoration project.

 

A TTF Responsible Purchaser, Gilmour & Aitken undertake rigorous due diligence on all their supplies, including their own additional, stringent checks on the all sustainable, legally-harvested hardwoods they import, from Oak to Greenheart and beyond.

Project Information

Location:    The Crannog, Mallaig

Architects:    Nigel Johnston

Wood Supplier:    Gilmour & Aitken

Contractor:     Knoydart Construction

Wood Species:       Greenheart, Larch, Cedar

TTF Member

With the high international demand for European Oak, the knowledge and connections of TTF Member Gilmour & Aitken to source and process the required quality of material is an asset on any design or restoration project.

 

A TTF Responsible Purchaser, Gilmour & Aitken undertake rigorous due diligence on all their supplies, including their own additional, stringent checks on the all sustainable, legally-harvested hardwoods they import, from Oak to Greenheart and beyond.

Location

Durability at the edge of the Sea

Updating the historic Scottish crannog form of building, architects Nigel Johnston of Arisaig created a special relationship between the building and its surroundings, respecting and reflecting Scotland’s ties to the sea.

 

The rustic aesthetic of timber was desired, alongside a high degree of durability to cope with the sea-edge location, and to cope with the high use expected of a community facility which also serves the increasing visitor numbers in Mallaig.

 

Main contractor Knoydart Construction had experience with Guyanese Greenheart, using TTF Member Gilmour & Aitken to obtain the required sections. Steel beams and fixings were rejected in favour of traditional timber jointing. Post & beam techniques were combined with boat-building methods, including steaming Greenheart on-site into crannog curves. Steam lamination facilitated building the Greenheart ringbeam roof without centre supports. Balau was used for the trusses.

 

Greenheart is exceptionally strong and very durable and can be worked with the right tools. One cubic metre of Greenheart shipped from Guyana to Gilmour & Aitken in Scotland stores 1.16 tonnes of CO2 which is kept within the timber for the anticipated long life of the building.

 

The contractor reduced the Greenheart down to sections for laminating. No treatment was needed for the Greenheart or Balau and both timbers have settled in, with no shakes or movement. Home-grown Larch and Cedar cladding complemented the hardwoods.

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