Here are the seven simple and easy steps for installing aluminum alloy windows in a sunroom:
In sunroom construction, many homeowners choose to use aluminum alloy windows. Below is a standard installation process for aluminum alloy windows in a sunroom. The general installation process includes: marking and positioning → installation of drip cap → anti-corrosion treatment → positioning and installation of aluminum alloy windows → fixing the aluminum alloy windows → treating the gap between the window frame and the wall → installing the window sashes and glass → installing the hardware fittings.
1. Marking and Positioning
Based on the design drawings, mark the window installation location, dimensions, and height. Measure the window edge lines from the center line. For multi-story or high-rise buildings, use the top floor window edge line as a reference, and transfer the lines down using a plumb line or theodolite, marking each floor’s window location. Any uneven edges should be chiseled and corrected. The horizontal position should be measured from the interior +50 cm horizontal line upwards to determine the bottom height of the window, marking a straight line.
2. Installation of the Drip Cap
The drip cap is a profile installed on the upper part of the window sash to prevent rainwater from seeping inside. According to the construction drawings, securely fix the drip cap onto the aluminum alloy window, ensuring the correct position and firm installation.
3. Anti-corrosion Treatment
If there are design requirements for anti-corrosion treatment on the exterior surface around the window frame, follow those guidelines. If no design is specified, apply anti-corrosion paint or stick plastic film to protect the aluminum alloy window from direct contact with cement mortar. This helps prevent electrochemical reactions that could corrode the aluminum frame. When installing aluminum alloy windows, it is recommended to use stainless steel fasteners. Otherwise, anti-corrosion treatment is necessary to prevent electrochemical corrosion.
4. Positioning and Installing Aluminum Alloy Windows
Install the aluminum alloy window frame according to the marked positioning lines. Adjust the window frame’s level, verticality, and diagonal lengths to meet quality standards, then temporarily fix it in place using wooden wedges.
5. Fixing the Aluminum Alloy Windows
If the wall has embedded metal parts, the metal legs of the aluminum alloy window can be directly welded to the embedded metal parts on the wall, and rust-proof treatment should be done at the welded joints. If no metal parts are embedded in the wall, metal expansion bolts or plastic expansion bolts can be used to secure the window’s metal legs to the wall.
6. Treating the Gap Between the Window Frame and the Wall
After the aluminum alloy window is installed and fixed, a concealed project inspection should be conducted. Once it passes inspection, treat the gap between the window frame and the wall according to design requirements. If no design is specified, elastic insulation materials or glass wool strips can be layered to fill the gap. A 5-8mm deep groove should be left on the exterior surface to be filled with caulking compound or sealant.
7. Installing the Window Sashes and Glass
The window sashes and glass should be installed after the surface decoration of the wall opening is completed and inspected. For sliding windows, after the window frame is installed and fixed, place the window sash with the fitted glass into the sliding track, and adjust the gaps between the sash and frame accordingly