Wood fibre insulation specialists

Why wood fibre for Scottish buildings

A huge share of Scotland's homes are solid stone or old brick: tenements, cottages, crofts, villas and farmhouses. Those walls were built to get wet and dry out again. Line them with foil-backed boards and plastic, and the moisture that used to escape gets trapped against the stone, which is how damp, mould and rotten timbers start behind new insulation.

Wood fibre works with the building instead. It's vapour-open, it buffers moisture, and it adds real thermal mass, so rooms stay warmer in winter and cooler on hot days. It's also made from timber by-products, so it stores carbon rather than using fossil fuel to make.

Where we fit it

• Internal wall insulation on stone and solid brick
• Room-in-roof and sloping ceilings, between and under rafters
• Lofts and suspended timber floors, as flexible batts
• Listed buildings and conservation areas, where only the inside can change

As joiners, we do the whole job: framing, membranes, boards, service battens, plasterboard, and refitting skirtings, architraves and reveals. See a stone croft on Skye we insulated in wood fibre, stage by stage.

How we use wood fibre

Wood fibre is made from timber offcuts pressed into boards and flexible batts. It's vapour-open, so moisture can pass through it and dry out, and it can take up and release moisture without losing much of its insulating value. That's exactly what solid stone and older brick walls need.

• Internal walls: boards on a framed or battened wall with a breathable membrane, then plasterboard or lime plaster.
• Rooms in the roof: between and under the rafters, where its weight also keeps attic rooms cooler in summer.
• Lofts and floors: flexible batts between joists where a natural option is wanted.

It costs more than foil-backed PIR, and it's thicker for the same result. On stone, it's worth it. See a Skye croft house we did in wood fibre.