Three categories of UPVC Profiles

1. UPVC Profiles are divided into: fixed windows, top-hung windows, middle-hung windows, bottom-hung windows, vertical swing windows, side-hung doors and windows, pulley side-hung windows, pulley windows, side-hung windows and doors, sliding doors and windows, according to the opening method. Sliding casement windows, folding doors, floor spring doors, lifting sliding doors, sliding folding doors, inverted side sliding doors.

2. UPVC Profiles are classified according to their performance: ordinary doors and windows, sound insulation doors and windows, and thermal insulation doors and windows.

3. UPVC Profiles can be divided into internal doors and windows and external doors and windows according to application parts.

Casement window

The advantages are large opening area, good ventilation, good airtightness, sound insulation, heat preservation and impermeability. The inward-opening type is convenient for cleaning windows; the outward-opening type does not take up space when it is opened. The disadvantage is that the window width is small and the field of view is not wide. Opening windows outside the wall takes up a space outside the wall and is easily damaged when strong winds blow; and windows opening inside takes up part of the indoor space. It is inconvenient to use screens, and it is inconvenient to use screens and curtains when opening windows. , If the quality is not good enough, it may seep rain.

Sliding window

The advantages of sliding windows are simple, beautiful, large window width, large glass block, wide field of vision, high daylighting rate, convenient glass cleaning, flexible use, safe and reliable, long service life, open in a plane, occupy less space, and easy to install screen windows Wait. Sliding windows are the most used. The disadvantage is that the two windows cannot be opened at the same time, at most they can only be opened halfway, and the ventilation is relatively poor; sometimes the airtightness is also slightly poor.

Sliding window: divided into two types: left and right, up and down sliding. Sliding windows have the advantages of not occupying indoor space, beautiful appearance, economical price, and good airtightness. It adopts high-grade slide rails, which can be opened flexibly with a light push. With large pieces of glass, it not only increases indoor lighting, but also improves the overall appearance of the building. The window sash has a good stress state and is not easy to be damaged, but the ventilation area is limited.

Down suspension

The lower-hung window is a kind of aluminum alloy and plastic steel window that only appeared later. It is a new form developed on the basis of casement windows. It has two opening methods, which can be opened horizontally or pushed away from the top. When the casement window is closed, pull the upper part of the window inward to open a gap of about ten centimeters. That is to say, the window can be opened from the top down a little, and the opened part is suspended in the air and fixed with the window frame by hinges. , So it is called downward suspension. Its advantage is: it can be ventilated, but also can ensure safety. Because of the hinges, the windows can only be opened with a seam of ten centimeters, which cannot be reached from the outside. It is especially suitable for use when there is no one at home. Sliding windows can also be opened downwardly.