Sonya Awning April 28th, 2018 - 12:12:01
retractable and fixed awnings: Visibility. Many fixed awnings use stanchions or posts which can block the view; retractable awnings are suspended, either by springloaded arms or with guidewires, depending on the syste. Since they dont require external support, they allow uninterrupted views. Easy installation. Retractable awnings are very simply mounted onto the structure at points like a wall or beam without heavy labor or construction. Variety of use. Retractable awnings can go in small or special areas, such as over windows, where fixed canopies would not be appropriate. Changeability. Retractable awnings can move according to different weather conditions, such as changing the slope of the awning during rain, closing during storms, or using a series of awnings across a long outdoor area that follows the sunlight.
How much shade coverage is required. What the width of the awning should be, based on the shade area. Add at least 12 inches to maximize coverage for sun and rain protection. How far out the awning extends (the projection), based on the shade area. There is a natural slope to an awning, so the actual shade is several inches shorter than the full projection. How high to mount the awning. Because of the awnings slope, the front of the awning is lower than the mounting position; this difference is the drop. The recommended drop is 3 inches per foot of projection. So, if the awning has a 12-foot projection, the drop is about 36 inches. To get a 7-foot clearance under the front bar, the awning has to be mounted at least 10 feet high. Scout out a mounting place that is free of obstructions (no lights, gutters, wiring, or ornamentation) and has adequate clearance around any doors or windows. For screens, make sure that any doors swing away from the screen. For retractable awnings, make sure the awning can extend its full projection without running into a tree, patio, roofline, or fence.
A drop screen usually enhances an existing structural feature, such as a door or window, or as panels to enclose a porch, lanai, or gazebo. A drop screen requires a sturdy beam to mount to and possibly a door frame or post to fix the side guides to. After finding the location, simply measure the width of the area from side to side on the interior of the frame (for an inside mount) and add for the width of the side guides if mounted outside the window frame. Then measure the height of the screen, going from the inside (or bottom) of the top frame to the bottom of the threshold for the height; for an outside mount, add the size of the headerbox and bottom rail to the height measurement. Finding an ideal retractable awning location has a few other factors to consider.
There are also dozens of different accessories for retractable awnings which make them easier to operate. A couple of common ones: Anemometer - a device which monitors wind speed; this is used with wind sensors. Sensors - devices which monitor different atmospheric conditions and trigger the motor to retract or extend the awning accordingly; there are four major kinds of sensors, including sun (light) sensors, wind sensors, rain sensors, and motion sensors (which monitor movements, such as wind gusts) Motor - a device which automatically moves the awning; motors are enclosed in the roller tube.Terms: Materials The retractable awning materials are the true indicator of quality - because the kind of materials used translates into quality, not the expense of the materials. For the fabric, there are two major categories of fabrics: