Ondutiss, under-roof screens, vapor barrier and rain barrier

The under-roof screen protects all the elements located under the cover against bad weather, climatic variations and temperature changes. It prevents the infiltration of snow and rain and avoids the lifting of the tiles if the wind blows too hard. The under-roof screen also limits the deposit of dust as well as the risk of fire. In addition, it prevents the invasion of pests such as insects or birds and thus avoids rapid degradation of insulating materials, the frame and the interior facing. The installation of this equipment is recommended regardless of the type of cover chosen to prevent leaks that may occur over the years due to climatic conditions or the formation of moss.

ONDUTISS® AIR HDV RESIST underlay screen

Onduline's ONDUTISS® AIR HDV RESIST under-roof screens consist of a polypropylene sheet, between two non-woven polypropylene sheets. QB certified by the CSTB (R2/150 gr/m2 and R3/190 gr/m2), they are highly permeable to water vapor (HPV) and offer continuous breathing of the roof, for permanent protection against humidity, wind and condensation. They can be installed in new buildings as well as in renovation: roofs of houses, buildings, public buildings...

ONDUTISS® AIR REFLEX R3 and R3 TT underlay screen

Highly reflective (up to 60% of the heat transmitted by infrared rays), the ONDUTISS® AIR REFLEX Onduline screens consist of an upper layer of aluminum to lower the temperature in the attic and improve summer comfort. Manufactured by thermal bonding, this four-layer breathable membrane has high mechanical resistance and is very tear-resistant.

ONDUTISS®AIR SOLAR TT underlay screen

With its resistance to high temperatures of up to 120°C, ONDUTISS®AIR SOLAR TT is ideal for application under photovoltaic panels and adapts to extreme climatic conditions. This breathable three-layer membrane (200 g/m2) has a highly water-permeable TPU film and a double adhesive strip.

Vapor barrier ONDUTISS® VAP CONTROL 100 Sd 18

The vapor barrier is an insulating layer that limits the penetration of water vapor into the thermal insulation, thus preventing the accumulation of humidity. It protects the interior of the roof against the penetration of water vapor which could condense in the thermal insulation and the wooden structure of a roof.

The breathable 3-layer ONDUTISS® VAP CONTROL 100 Sd 18 membrane regulates humidity and limits the transmission of water vapor through the wall (walls and ceilings). Installed indoors for airtightness on the underside of the thermal insulation, it prevents damage linked to condensation and improves the energy efficiency of the building.

ONDUTISS® FACADE OPEN UV3B rain barrier

The rainscreen limits the risk of moisture and fungus in the thermal insulation and protects the wooden structure of the house. The water vapor that penetrates the wall "slides" along the rainscreen into the partition without infiltrating it.

Watertight, the ONDUTISS® FACADE OPEN UV3B Onduline rain barrier protects the facade of the slatted cladding from exterior humidity by evacuating it from the interior to the exterior of the building. Very resistant to UV, it protects the structure and the thermal insulation of the walls against water, snow and drafts inside the building.