Flat Roof Insulation System
The flat roof insulation system complies with the most stringent of standards – from baseline building regulations through to Passivhaus.
The system is suitable for most external finishing options including sedum, metal, timber or similar decking. All components for the system are available from Unity Lime.
CROSS SECTION OF SYSTEM
- Finish covering (such as green roof or gravel)
- EPDM & WBP Plywood Deck
- 100mm ventilation zone
- Breather Membrane (Flat Roof)
- ISOLAIR
- Rafters (Filled)
- PAVAFLEX
- PAVATEXTIL-P
- OSB/DB 3.5 Airtightness Membrane
- Service void (25mm)
- 10. 11. Plastering System
COMPONENTS AND ACCESSORIES FOR ROOF FLAT
-
PAVAFLEX Wood Fibre Insulation -
PAVATEXTIL P Thermo-Acoustic Insulation -
STRH Timber Fixings + Washers – Box of 100 -
TOPIX-THERM – HECO -
DB3.5 Internal Airtightness Membrane -
PAVAFIX SN Band – Screw Sealing Tape -
PAVATAPE (75, 150) – External Weathertightness Tape -
PAVATAPE FLEX – Penetration Tape -
PAVACOLL Adhesive Sealant -
PAVAPRIM Primer – 1L -
PAVATEX Insulation Knife – 330mm
SYSTEM PERFORMANCE
u-values
0.26 – 0.10
y-values
0.05 – 0.02
Airtightness
5 – 0.6 @50pa