What are the installation of the box method?
Sub-box installation is another way to install plastic doors and windows. It is in the hole to install a sub-box, sub-box in the foot directly into the cement mortar wall, sub-box installation must ensure that the horizontal and vertical, so that the installation of the window can be achieved to achieve horizontal and vertical. With this installation method, the doors and windows frame and the wall completely out, and can be completed in the cement mortar after all, so it will not cause pollution. In addition, due to the use of the sub-box, so that the installation quality of doors and windows easier to get control, but also reduce the plastic doors and windows due to thermal expansion and contraction caused by the expansion and contraction.
The contractor shall, in accordance with the size of the aluminum window, first process a sub-frame (size 4cmx2cmx2mm) of 5 to 8mm thick inside the aluminum window, and the contractor shall be responsible for installing the sub-frame. The contractor should be based on the size of doors and windows, the first processing of an inner side than the aluminum window 5 to 8mm galvanized steel pipe sub-box [size 4cmx2cmx2mm], and by the contractor is responsible for the installation of sub-box. The process is: sub-box installation fixed → waterproof mortar packing → indoor to the sub-frame with fine stone concrete pouring and plastering side → outdoor brush waterproof layer → outdoor cement mortar + inorganic insulation + brick
A method of installing plastic doors and windows. So that the door frame and the wall completely out of doors and windows of the installation quality is easy to get control, reduce the plastic doors and windows due to thermal expansion and contraction caused by the expansion and contraction.
