Internal Wall Insulation - Design – Celenit Wood Wool Boards & Thermafleece Sheeps Wool

500mm Solid Wall (appropriate external protection from driving rain is essential when undertaking internal wall insulation – please contact us for advice)

Approx 15mm hydraulic lime plaster

Option 3 (Sheep's wool & wood wool)

125mm of insulation chosen from below

Tŷ-Mawr Thermafleece Cosywool/Ultrawool/NatraHemp

Moisture variable vapour check

Celenit 15mm Wood Wool board fixed with plastic washers and screws at 8 per m2

2 x 6mm Fine Hemp Plaster with mesh* which can be finished with 1 x 3mm Superfine Plaster for a finer finish

or

1 x 10mm Base Coat SecilTek Isovit (meshed) & 1 x 3mm Top Coat SecilTek Cal AC

*preferred option

Vapour permeable Paint Finish - Maxil, Tŷ-Mawr Limewash, Clay Paint, Ecosphere

Table shows typical thicknesses suitable for internal wall insulation, but please contact us for a specific u-value calculation, condensation risk analysis and quotation for your project.