One of the most common questions about retractable awnings is “Can it take the rain?” And, depending on the customer’s weather, the rain question is quickly followed by questions about whether retractable awnings can handle snow, high winds, sleet and other atmospheric conditions.
The most accurate answer is it depends. It mainly depends on the type and severity of the weather. The good news is that retractable awnings have options to respond to almost any weather condition.
Why the weather affects retractable awnings
Anything outdoors is subject to some type of weather exposure; When considering retractable awning options, part of the decision lies in determining what the options are to respond to the weather.
Fixed awnings, canopies and gazebos are fixed in place. The fabric is stretched taut along the frame and supported by struts. This stiffness is what makes them vulnerable: the sun wears down the fabric, the frames wear down and weaken. Poles and frames offer limited support against the wind, though they leave the fabric more vulnerable to the weight of snow and rain.
Retractable awnings lock into place at the base only; its support is of tension springs in the arms of the retractable awning. The high-quality frames are made of lightweight aluminum, which is strong and durable. However, because they have no external support, anything that puts a lot of pressure on the frame, such as a heavy weight or sudden movements, can cause damage.
However, retractable awnings have a significant advantage. Fixed canopies simply wear down after exposure to the elements; retractable awnings can be retracted into a canopy and protected.
The impact of rain and snow
The biggest danger from both rain and snow is weight. Very light precipitation (drizzle, fog, a very light layer of snow) does not have enough weight to damage a high quality retractable awning when it is extended. But constant rain or snow can cause problems.
Rain has the biggest impact on the fabric. Rainwater collects on the fabric and over time causes the fabric to stretch, sag and possibly tear. There are two ways to prevent rain damage:
o Adjust the tilt of the arms so that the angle of the retractable awning can be made steep enough for water to run off.
o Use a rain sensor that, when the retractable awning has a motor, will automatically retract the retractable awning when it starts to rain.
Snow impacts retractable awnings differently than rain. Snow and ice tend to accumulate, layer upon layer. In addition to putting pressure on the fabric, snow and ice can put enough weight on the retractable awning frame to bend and damage the side arms and mounting (torsion/square) bar.
There is no “snow sensor” but having a motor with an interior switch or radio remote control makes it easy and convenient to retract the awning even in cold weather.
The impact of wind and movement
Good quality retractable awnings are designed and tested to withstand winds up to 35 mph, so almost any day is safe. The general rule of thumb is this: if it’s too windy to sit outside, it’s too windy to extend the retractable awning. However, gusty winds can be a hidden danger. Sudden and sharp wind shears can cause immediate damage to retractable awnings, twisting and twisting the frame.
There are sensors for both types of wind. A standard wind sensor measures the current wind speed and retracts the retractable awning when it exceeds a certain user-defined point. A motion sensor can detect sudden movements, something common when a storm rises. Both sensors recheck wind conditions, so the retractable awning can automatically extend as soon as it’s safe.
Design makes the difference
The shape of the retractable awning makes a difference in how well it handles the elements. Traditional awning styles are flatter, with a taut stretch of fabric between the arms (called a sidearm). However, retractable dome awnings are steep, rounded, and closer to the building (due to shorter projections), providing good runoff and protection from precipitation, as well as making them more resistant to winds. Retractable dome awnings are ideal for windows, doors, and walkways.
The key part is to assess your climate. Do you have heavy rain? Does the snow stay or melt? Is there a lot of wind or storms? With a motor and the right sensors, retractable awnings can be safe in any weather.