Sonya Awning April 21st, 2018 - 11:34:54
One important note for drop screens: not every manufacturer has a do-it-yourself style, so make sure you dont need a contractor before ordering the screen. A retractable awning installation is slightly more complicated than a screen installation, so follow the manufacturers instructions:1. Locate the bricks, rafters, studs, or joists to which to mount the awning.2. Install a pressure-treated board at the install location if mounting onto siding. It is extremely important that the awning be mounted on a flat, level surface, which isnt always possible with siding, shingles, and brick. 3. Install the mounting brackets, with the end brackets about three inches inside the edge of the awning and the other brackets evenly spaced between them. The number of mounting brackets depends on the width and projection of the specific retractable awning. 4. Install and attach the optional hood about 1 inch above awning location. 5. Lift the retractable awning, and insert it in the mounting brackets.6. Tighten the retaining bolts.
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.
Consider whether the additional cost for a high end retractable awning is worth the additional quality. The functional distinctions between high and low quality retractable awnings are significant: - Commercial (high quality) awnings have non-prorated frame warranties of 25 years and fabric lifetimes as long as 12-15 years, while residential (budget) lines have frame warranties and fabric lifetimes of five years or less. - Commercial grade retractable awnings come in custom sizes, down to an inch measurement, while many residential lines have only a few standard sizes. - Commercial retractable awnings have hundreds of fabrics available, while budget lines usually have much fewer color and pattern options. Additionally, high quality awnings use a woven fabric called solution-dyed acrylic which resists fading, mildew, and rot, while budget awnings use cheap materials such as canvas (which fades quickly) or vinyl (which absorbs the heat and does not breathe).