Installation of airvent sprcial for waterproofing:
This instrument is applicable to make a connection between under waterproofing and outside.with this instrument the humidity of under waterproofing come outside which this instrument is highly recommanded in humid areas and the instrument should install in some places which the humidity concentration is max like bath/wc/kitchen/...
 
Notice:
In installation it should be noticed that lower part of airvent should be upper than layer at least 1 mm in order to weather circulation.for evaluating the no. of required airvent please refer to below data :
Dry area: 1 for each 120m2
Semi humid area: 1 for each 80 m2
Humid area: 1 for each 50 m2

Offered waterproofing: T400, P400, T300,T250, L400, LS300