How does the finished ventilator manufacturer waterproof?
do not play any silicone and tape, to avoid the silicone tape aging caused by leakage hazards. Can be done once and for all.
In the latest country set JJCJ33 clearly stipulates that the structure to be waterproof, refers to the internal ventilation of all nodes and ventilators and roof all the nodes,
Rooftop natural ventilator waterproofing measures are mainly two kinds, one is the traditional silicone, adhesive tape waterproof, the other is the structure of water, the national standard Atlas 11CJ33 "ventilation and light skylight" recommended the use of structural waterproof technology.
