Twin Wall

In the Ventilated Roof Penetration Component the inner bore of the system is insulated from the external environment by double insulation interposed with an air chamber, which give the product an insulation of 75 mm all round the circumference.

First level of insulation:
Inner Wall: stainless steel 316 BA (EN 1.4404 - L50) 0.5 mm thick.
Outer Wall: stainless steel 304 BA (EN 1.4301 - L20) 0.6 mm thick.
Insulation: Rock wool, thickness 25 mm density 90 kg / cubic meter.

Intermediate Air Chamber:
Inner Wall: stainless steel 304 BA (EN 1.4301 - L20) 0.6 mm thick.
Outer Wall: stainless steel 304 BA (EN 1.4301 - L20) 0.6 mm thick.
Insulation: air.

Second level of insulation:
Inner Wall: stainless steel 316 BA (EN 1.4404 - L50) 0.6 mm thick.
Outer Wall: stainless steel 304 BA (EN 1.4301 - L20) thickness 0.5 mm or 0.6 mm thick copper.
Insulation: Rock wool, thickness 25 mm density 90 kg / cubic meter.

Welding: longitudinal TIG process for the  fusion of adjoining pieces without filler.  

Belling: cold moulding, done with a mould and counter mould hydraulic expansion system ensuring calibrated joints with a tolerance of +/- 2mm.

Accessories: triple lip silicone gasket to ensure the joint is sealed; locking band to secure the joint and ensure the continuity of the system. The product is provided, as standard, with support and regulation flanges, which serve to fix the product on a suitable support and adjust the verticality of the Chimney System, based on the pitch of the roof; with a cone to be fixed to the outer diameter of the system, whose function is to prevent the entry of rainwater.

Insulation of Chimney Systems or Flues that penetrate the roof or walls built with materials that have a high degree of flammability like wood.

For the designation of the chimney system according to UNI EN 1856-1 the following is allowed:

operation:
- Dry (D)
- Wet (W)

pressures:
- Positive (P1 = 200 Pa)
- Negative (N1 = 40 Pa).

Operating temperatures:
- ≤ 200 ° C with silicone gasket and P1 = 200 Pa
- ≤ 600 ° C without silicone gasket and N1 = 40 Pa

The technical data on the website are subject to change without notice.