Pitched Internally Fitted
The system complies with the most stringent of standards – from baseline building regulations through to Passivhaus.
The system is suitable for most internal finishing options, including lime plaster, clay plaster or plaster board finish. All components for the system are available from Unity Lime.
CROSS SECTION OF SYSTEM
- Existing tiles/slates
- Existing non-breathable felt
- New treated timber battens (min. 45mm height), fixed to existing rafters to create ventilation area
- System glue (to seal battens to rafters and woodfibre boards to battens
- ISOLAIR. Option A: fixed to the battens. Option B: fixed to the rafter.
- PAVAFLEX or PAVATEXTIL-P between battens. Option A: DB 3.5 airtightness membrane can be installed after this layer
- ISOLAIR
- a) Lime-based plaster system. b) DB 3.5 airtightness membrane; service void and plasterboard
SYSTEM PERFORMANCE
u-values
0.30 – 0.10
y-values
0.05 – 0.02
Airtightness
5 – 0.6 @50pa
COMPONENTS AND ACCESSORIES FOR PITCHED INTERNALLY FITTED
-
ISOLAIR MULTI Wood Fibre Insulation Boards -
PAVAFLEX Wood Fibre Insulation -
PAVATEXTIL P Thermo-Acoustic Insulation -
HECO TOPIX – Timber Fixings -
STRH Timber Fixings + Washers – Box of 100 -
RK70 – BAUMIT -
BAUMIT KLIMA GLATT W -
ADB Breatheable Sarking Membrane -
DB3.5 Internal Airtightness Membrane -
BAUMIT STARTEX -
PAVAFIX Airtightness Tape (60, 20/40, 150) -
PAVATAPE (75, 150) – External Weathertightness Tape -
PAVATAPE 12 – Membrane Tape -
PAVACOLL Adhesive Sealant -
PAVAPRIM Primer – 1L