SOLITEX FRONTA HUMIDA

The SOLITEX FRONTA HUMIDA breather membrane (WRB) consists of two polypropylene protective fleeces that cover a slightly diffusion-inhibiting monolithic functional film. The membrane offers exceptionally high resistance to driving rain (water column > 10,000 mm) to provide protection during the construction phase.
The external black protective fleece facilitates an outdoor exposure period of three months during construction.

During this period, the membranes must be covered by a closed, back-ventilated pre-wall shell (e.g. faced masonry). When system connection and sealing solutions are used, building components remain dry if installation is carried out professionally and structures are properly designed with regard to diffusion.

Double-sided moisture protection

Wooden structures behind pre-wall shells are exposed to a range of moisture influences. In the case of airtight installation, these influences include moisture diffusion on the interior and the driving rain load from the exterior during the construction phase.

After a driving rain event, heating up from the outside (due to the sun) can result in a microclimate with increased relative air humidities behind a pre-wall shell when construction is complete. If the external breather membrane (WRB) is very open to diffusion, moisture can penetrate into the insulation layer – of a wooden-frame wall, for example – and lead to condensation formation that causes material damage.

SOLITEX FRONTA HUMIDA provides reliable protection for building structures in various situations thanks to its balanced s_d value = 0.50 m, and it thus fulfils the requirements of the current version of DIN 68800-2.