Sonya Awning April 25th, 2018 - 08:48:42
There are dozens of styles of retractable awnings, determined mainly by the frame shape: Lateral arm awning - the most common, and oldest, retractable awning style, consisting simply of two or more arms, the front bar, mounting bar and the fabric. This is the most popular style for homes and commercial buildings; this is also the most scalable style, extending (projecting) as far as 17 feet without external supports. Dome - an awning with curved ribs, which forms a rounded shape when fully extended; these tend to have a significantly shorter extension (projection) than lateral arm awnings, extending only about five feet out maximum from the mount point. An elongated dome can have a longer projection than a standard dome style, almost double. Dome awnings are common for commercial properties and for window and door awnings. Drop screen - a kind of retractable awning which is mounted vertically so it extends downward. This style of awning has the mounting bar and fabric, but no arms since it simply "drops" down. This is mainly used to screen patios, gazebos, and other outdoor areas from glare, heat, rain, UV rays, direct sun, mosquitoes, and pollen.
PVC - a hard polymer also used to make plumbing pipes; this tends to be brittle. Kevlar® - the polymer used to make bulletproof vests; Kevlar® straps in the arms instead of cables are extremely strong and durable and cant rust. Cables - braided metal strands which are used in the arms; these are usually steel, which rusts, leading the cables to discolor the fabric and eventually break. Cables cannot be replaced because they are internal to the arm and inaccessible. Terms: Installation Understanding a few terms about the positioning and installation of the awning can help determine the appropriate size and installation location for your awning: o Mount - what way or location the awning is affixed to the home or building, such as a wall mount, eave mount, soffit, or roof mount. Pitch - the angle that the awning comes down from the mount point to the front bar. Some lateral arm retractable awnings have an adjustable pitch. Projection - how far out from the wall the awning can extend. Load - the stress put on the awning, from wind, snow, even the weight of the awning itself (dead load). Good quality retractable awnings can sustain wind speeds up to approximately 35mph Pooling - water buildup on the canopy which can cause the fabric to sag and stretch.
How easy an awning is to maintain depends a lot on how it is made, and there are differences between retractable awnings. The fabric on low-quality awnings, particularly cheaper fabrics like canvas and vinyl, is the component most vulnerable to damage: rotting or mildew from rain and humidity, sun exposure, frayed seams, cracking, and fading. Quality retractable awning companies use solution-dyed acrylic, a chemical fiber with the color embedded into it. Solution-dyed acrylic is a woven fabric, so it dries quickly, avoiding mold or mildew. Since is a synthetic fiber, it doesnt rot. And, since the color is part of the fiber itself, it lasts as long as 15 years before being replaced.
Following paragraphs discuss the desired qualities of both types of awnings so that you find it easy to buy awnings, whether residential or commercial. Residential Awnings: There was a time when almost all residential building had awnings. When artificial air conditioning system was not invented, awnings were popular for keeping indoor environment cool. It was the most natural way to make rooms comfortable during summer. With increased energy cost, people have again started to shift towards awnings. Retractable awnings are quite popular nowadays. The qualities people look in a residential awning are as follows: Adequate element protection: Protection from sun, rain and snow is the prime reason for installing awning at home. While purchasing, make sure the materials used in your awning can protect you from heat and rain.