THEME SITES

Description
Suggested thicknesses
CAD drawings

Technical Specifications

Positioning of the edge stop beam
Fixing of the gutter
Torch down a vapour barrier to the roof top made of bitumen membrane of at least 3mm thick
Again using a hot torch, immediately lay down STIFERITE’s Class B panels on the top surface of the previous membrane
(alternative: STIFERITE’s Class S – STIFERITE's GT3 – GT4 – GT5)
Torch down of bitumen membrane with slate chips finish of 4,5 kg/m2 to the top surface of Class B panel
Followed by the installation of the first rows, or as many as necessary (depending on the amount of pitch and wind conditions), of tiles using polyurethane foam

Instructions and Guidelines
The waterproofing membranes protects the roof prior to the installation of the tiles and in case of accidental brakes, it assures the necessary waterproofing.
The use of the vapour barrier is indispensable for the correct functionality of the system.

Also see: the installation procedure

The tables indicate the suggested thickness of Stiferite’s panels based on

Climate Zones
Current legislative set limits of thermal transmittance
And the following composition of the structure:

Suggested thickness STIFERITE Class B - STIFERITE Class S
Climate Zone	DLgs 311/06	TAX deduction MD 65% DM 26/10/2010
A	60 mm	80 mm
B	60 mm	80 mm
C	60 mm	80 mm
D	80 mm	90 mm
E	80 mm	100 mm
F	80 mm	100 mm

Suggested thickness STIFERITE GT3 - GT4 - GT5
Climate Zone	DLgs 311/06	TAX deduction MD 65% DM 26/10/2010
A	50 mm	60 mm
B	50 mm	60 mm
C	50 mm	60 mm
D	60 mm	80 mm
E	70 mm	90 mm
F	70 mm	90 mm

Note: For different composition of structures or material, we suggest using the calculation program available online (see: Thermal transmittance and verifications of condensation with Glaser method)