Proper use of house wrap
Clean up the dust and oil on the corner code before construction to ensure that the corner code is clean to ensure the bonding effect between the corner code and the house wrap. Corner through the house wrap should try to ensure the integrity of the house wrap, house wrap curve flooding will corner a week with house wrap completely sealed. The sealing point is not less than 2cm with the corner code.
House wrap has no obvious flame retardant effect. Welding should be avoided as far as possible in curtain wall engineering connectors. The open fire operation (including welding) procedure should be arranged before the house wrap construction. In roofing construction, the house wrap should be laid along the water direction of the roof, the overlap length is 10cm. When the roof high-strength aluminum alloy bracket passes through the house wrap, the aluminum alloy bracket and the house wrap joint, with butyl rubber band around a ring for sealing. Besides, the house wrap should not be exposed to ultraviolet radiation for a long time. The outer finishing works should be completed as soon as possible.
When laying house wrap, according to the actual situation, choose the laying method, the house wrap and insulation cotton with rock wool nail fixed, fixed rock wool nail with butyl tape sealing, sealing area to butyl tape will be completely covered with the nail head as the standard.
The house wrap is lapped with window frame and door frame, and the house wrap is applied to the linear flooding seal, and the house wrap curve flooding seal is applied to the corner. The bonding width of the sealing point and the window frame and door frame is not less than 2cm, and the width of the bond at the corner is not less than 10cm. Installation sequence is: lower part of the window frame lower corner of the window frame side frame of the window frame upper corner of the window frame upper part of the window frame sealing.