Sash weights are an essential component of older style windows, and are used to counterbalance the sash, or the window frame, when it is opened. Without the use of sash weights, the window would be too heavy to open and close. So, how heavy should sash weights be?
The answer to this question depends on the size and weight of the sash itself. Generally, the heavier the sash, the heavier the sash weights need to be. The sash weight should be about one-third of the total weight of the sash. So, if the sash weighs 30 pounds, the sash weights should weigh approximately 10 pounds each.
When selecting sash weights, it’s important to choose weights that are appropriate for the size and weight of the sash. If the weights are too light, they won’t be able to counterbalance the sash and the window won’t open and close properly. On the other hand, if the weights are too heavy, it can be difficult to lift the sash and the window may be harder to open and close.
In addition to the size and weight of the sash, the type of window also affects the weight of the sash weights. For example, double-hung windows require heavier sash weights than single-hung windows. This is because double-hung windows have two sashes that need to be balanced, whereas single-hung windows only have one.
It’s also important to consider the type of material used for the sash weights. Cast iron sash weights are the most common type, but they can be heavy and difficult to install. Lead sash weights are lighter and easier to install, but they are more expensive. Steel sash weights are also available, but they are not as durable as lead or cast iron.
Finally, the environment in which the window is located should be taken into account when selecting sash weights. If the window is located in an area with strong winds, the sash weights should be heavier to prevent the window from being blown open. Similarly, if the window is located in a humid environment, the sash weights should be heavier to prevent the window from sticking in the frame.
In summary, the weight of sash weights depends on the size and weight of the sash, as well as the type of window and the environment in which it is located. Generally, the sash weight should be about one-third of the total weight of the sash, but this can vary depending on the specific situation. When in doubt, it’s best to consult a professional to ensure the sash weights are the correct weight for the window.