Roof Flat

The 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 NBT.

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System Image

Cross Section of System

  1. Finish covering (such as green roof or gravel)
  2. EPDM
  3. WBP Plywood
  4. Battens for ventilation (100mm)
  5. Breathable roofing membrane
  6. NBT ISOLAIR / PAVATHERM-PLUS
  7. Rafters/NBT PAVAFLEX
  8. Airtightness membrane (taped)
  9. Service void (25mm)
  10. Plasterboard 12.5mm

Product Downloads

Flat Roof Technical Manual
2 MB
picture_as_pdfpdf
Flat Roof System Sheet
1 MB
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System Performance

u-values
0.26 - 0.10
y-values
0.05 - 0.02
Airtightness
5 - 0.6 @50pa

Components and Accessories for Roof Flat

1

Pavatherm-Combi

2

Pavaflex

3

HECO-TOPIX Countersunk

4

Breathable Membrane: ADB

5

Pavatape: 75/150

6

Pavabase

7

Pavafix SN Band Tape