Warm Roof - Design – Example Build Ups of whole system

Option 1

Above Rafters

35mm Insulating Woodfibre Sarking Board

Fully Fill Between Rafters

200mm of Insulation chosen from below:

Tŷ-Mawr Thermafleece® Cosywool/Ultrawool, NatraHemp

Below Rafters

Intello Plus fully taped (if air tightness required)

Celenit 25mm Wood Wool board and approved washer fixings at 8 per m2

Insulating Woodfibre 60mm T&G boards and approved washer fixings 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

Vapour permeable Paint Finish - Internal Silicate Paint, Tŷ-Mawr Limewash, Clay Paint, Ecosphere

Option 2

Above Rafters

60mm Insulating Woodfibre Sarking Board

Fully Fill Between Rafters

200mm of Insulation chosen from below:

Tŷ-Mawr Thermafleece® Cosywool/Ultrawool, NatraHemp

Below Rafters

Intello Plus fully taped (if air tightness required)

Celenit 25mm Wood Wool board and approved washer fixings at 8 per m2

Insulating Woodfibre 60mm T&G boards and approved washer fixings 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

Vapour permeable Paint Finish - Internal Silicate Paint, Tŷ-Mawr Limewash, Clay Paint, Ecosphere

Option 3

Above Rafters

Proclima Solitex plus fully taped windtight membrane

Fully Fill Between Rafters

200mm of Insulation chosen from below:

Tŷ-Mawr Thermafleece® Cosywool/Ultrawool, NatraHemp

Below Rafters

Intello Plus fully taped (if air tightness required)

Celenit 25mm Wood Wool board and approved washer fixings at 8 per m2

Insulating Woodfibre 60mm T&G boards and approved washer fixings 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