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TECNOVAP is a vapour resistant felt, consisting of a single nonwoven polypropylene spunbonded felt, combined with a micro porous breathable and waterproofing layer.
When it is necessary to use a vapor check, to avoid the mold and condensation formations, in presence of an upper insulation system.
  •  Protects your roof from rainwater infiltration, snow, wind and dust.
  • It settle the vapor transmigration
  • Easy and light to install
  • No maintenance required
  • Fully recyclable
Apply the TECNOVAP rolls at the wooden support extrados, under the insulation boards transversally to the ground slope, starting the installation from the eaves line, providing 20cm overlaps. The mechanical fixing can be effected by the use of large-headed nails or metal staples. On the top of the sheets must overhang on the opposite pitch to allow the overlaps. TECNOVAP can be used combined with TECOAIR to optimize the thermal performances of an insulated roof

TECNOVAP should be stocked horizontal, on a clean and flat surface away from direct sunlight.
Aspect rolls
Areic Mass g/m² 135
Thickness mm 0,42
Max tensile force (longitudinal) N/5cm 230
Max tensile force (transversal) N/5cm 220
Resistance to tearing (longitudinal) N 105
Resistance to tearing (transversal) N 95
Water penetration resistance cm »200
Permeabilità al Vapore g/m2.d 1.700
Value Sd m 3 - 5
Reaction to fire ( DIN 4102 ) Classe B2 – B3
Disponibilità In stock
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November 7, 1940 - Collapse of the Tacoma Narrows Bridge. The cause is the  hight stress caused by the wind force  to the bridge structure.
Viapol '63
This year Vetroasfalto celebrates the 56 years of life of its flagship product: the VIAPOL brand.
We would like to thank all our customers for the cofidence shown so far in our main product.

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