Sonya Awning April 29th, 2018 - 12:11:37
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.
Why is the awning being used? Figure out clearly why that area needs protection and what element you want to control. The requirements for the awning are different for rain protection and sun protection. For example, to use the awning in wet areas, have at least a 3 inch slope, or pitch, to the awning per foot of extension. If an awning extends 12 feet, the pitch should be 36 inches, meaning that the awning must be mounted 3 feet higher than the height at the end of the awning fully extended. Awnings in sunny locations with little can be nearly flat. For other situations, awnings may not be ideal; high, sustained winds can seriously damage awnings, as can the weight from snow, ice, and hail. Accessories like wind or motion sensors can also be used to protect the retractable awning in less than ideal conditions.
Differences in Style The different reasons for retractable awning use in Europe and the US have produced different emphases on style. Because awnings had a stylistic influence in European history which transitioned to efficiency uses, European awning fabrics and designs tend to be more dramatic and flamboyant. For example, European fabric lines average about 400 fabric designs, while American lines average 200. Color choices in Europe tend to be lighter and brighter. American homeowners, approaching retractable awnings as a functional addition to a house, without the stylistic background, tend to be conservative, choosing fabrics in blacks and grays in sedate stripes and staying with more traditional frame styles.
Longevity. Fixed awnings have a fabric lifetime of five years or less because of constant exposure to the sun, snow, rain, and wind, all of which can fade or tear the fabric. Retractable awnings have a huge advantage in being able to retract - the fabric can be protected in adverse weather conditions. Combined with options like a motor and sensors (for light, wind, rain, and motion), the awning can be closed automatically in conditions which would normally damage the fabric or frame. Retracting the awning when its not in use, like on shady or cold days, cuts down on sun damage to the fabric from UV exposure. With a retractable awning, the average lifetime for the fabric is 15 years - three times better than a fixed awning. Since retractable awning frames have warranties of up to 25 years and motors have warranties up to 5 years, motorized retractable awnings offer a really excellent cost investment.