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How to Repair and Save Old Metal Windows

Metal windows are beautiful, and they are an important part of many historic buildings. But too often, these windows are replaced prematurely, a problem that SPAB is aiming to remedy. Fortunately, it is possible to repair and save old metal windows. In this article, we will explore the different problems that older metal windows can have, as well as the different methods for restoring these old windows.

Restoring old metal windows

When you want to re-use old metal windows, you’ll want to use the correct materials for the job. Putty is a traditional material for this kind of restoration, and you can use mastics and butyls if you want to preserve the original look. Silicone is not an appropriate sealant for this purpose. If your window is fitted to masonry, you should use mortar to adhere it to the masonry. This¬† type of mortar typically contains sand and lime. Make sure to match the type of mortar to the original one and to avoid Portland cement.

The procedure for renovating old metal windows varies, depending on the condition of the windows. You can decide to restore the metal sashes on site, or hire a professional to do it for you. Some metal windows require shot-blasting, while others may require zinc spraying or galvanisation. You should also be sure to label the different parts of the metal window, because you’ll need to reuse certain parts of it later on.

Restoring corroded metal windows

Corrosion of metal windows is a common problem, resulting in warped, jammed, and sometimes cracked windows. It occurs when metal expands due to oxidation. Copper and bronze, for example, expand about six times their original volume. This expansion leads to a series of subsequent problems, such as raised finish and pitting. Heavy corrosion can also result in bowing of the frame.

Luckily, there are a number of ways to remove flaking paint and restore corroded metal windows. You can remove light corrosion using a solvent, but more severe corrosion may require a shot blasting or acid pickling process. The technique you choose will depend on the type of corroded metal and your budget. To protect the original finish, you can apply zinc-based paint as a primer. Zinc-based paints are ideal because they provide a protective barrier to the bare metal. Remember to test any paint on a small area, before applying the rest of the paint.

Cleaning corroded metal windows

If your home has windows made of metal, cleaning them is an important step in restoring their appearance. The process of cleaning corroded metal windows involves using a cleaning solution to remove oxidation and rust. White vinegar is a good solution for this, because it breaks down mineral deposits and leaves behind no residue. Apply the solution to the corroded area and scrub the window frame. If you can’t do it yourself, call a professional aluminum window cleaning company. When cleaning oxidized windows, it is also important to wash the window tracks to remove dirt and gravel. You can use a nozzle attachment to remove big debris, or a hard bristle brush to remove finer dirt.

If the rust is light, you can try to remove it by hand, but if the corroded area is deeply entrenched, you may need a professional. You can also prevent rusting by oiling the moving parts of metal windows. If you use a thin layer of oil, you can use a wire brush to clean them. Using this oil will also prevent them from fusing shut. Iron and steel windows can also benefit from this.

Finding replacement metal sections

When metal window sections bend, you will need to find replacements. This may require cutting out the damaged section and straightening it in a workshop. In some cases, it may be possible to re-align the sections without removing them. However, it can be difficult to locate rolled metal sections. Your best bet is to purchase salvaged windows from the same building as the ones you are replacing.

There are many factors that must be taken into consideration when evaluating your window’s condition. The presence of corrosion, paint deterioration, and the condition of the metal sections should all be taken into account. Another important consideration is the condition of the glass and glazing compound. You should also assess the condition of the concrete or masonry surrounds. You will also need to consider whether the sills need to be reset or need to be re-caulked.

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