Moisture traps in roof systems should be avoided. Where a double membrane system is to be provided this can be accomplished by designing a vented system. Breather vents can relieve vapour pressure and provide for drying of small quantities of moisture over a relatively long period of time. They...
In the transverse direction along - and venting, flat roof - element for the production of fertighaeusern in a timber.WISSLER GEORG ANTON, DE