Roof Covering
Awnings
An awning is a type of roof covering, typically composed a vinyl or canvas type material stretched over a light metal or other sturdy frame. Canvas covers can be composed of polyester, cotton, or acrylic yarn, while vinyl is laminated onto polyester fabrics. This structural configuration is intended as a planar frame, space frame, or truss. Awnings are commonly designed around a aluminum understructure along with aluminum sheeting, especially when a fabric awning is neither practical nor affordable.
Awnings may be placed above a walkway, door, or window. When used cooperatively with columns the awning is transformed into a canopy, extending further from the building, such as at the entrance of a hotel or fine restaurant. Restaurants also commonly use large scale awnings to cover a substantial outdoor area for receptions, parties, outdoor dining, or front driveway cover. Awnings at commercial buildings are often printed with information such as the business type, name, address, or phone number, thereby serving as a billboard or sign while also providing protection from weather elements. Awnings protect from snow, rain, steep winds, and excessive sun exposure. When used in locations where wintry weather is anticipated, awnings can remain in use or can be retracted against the wall or window all winter long.
In North America, awnings began to gain popularity in the 1850's, consisting of cast iron or timber posts linked by front cross bars. These awnings were set along the edge of sidewalks for the convenience of visitors to large businesses or posh establishments. Larger awning structures were further supported by angled rafters which linked the front cross bars to building facades. Canvases were connected with hooks, grommets, and nails, or by lacing canvases to head rods, which were in turn bolted down to the facade. The projecting edge of the awnings were laced to or draped over a front bar, forming a valance.
Awnings allow home and business owners to protect themselves and their property from the elements of the weather. When the sun beats down, showers threaten, or winter looms overhead, the awnings provide near-instant shade and protection. Thermometers placed underneath an average awning on a hot summer day will show the temperature to be at least 20 degrees cooler than elsewhere. Awnings also prevent sunlight from coming through sliding glass doors and windows, thereby keeping indoor temperatures cooler, helping home owners to save on their air-conditioning costs. Awnings also help to prevent furniture and carpet fading as a result of sunlight. Finally, awnings provide sheltered places for pets and children to play.
Antennas
Set-top antennas are of a higher end technology and prove to be less of a hassle than rooftop antennas. The design of set-tops are also much more modern than the ever famous rabbit ears that people used to use for their televisions. Manufacturers build antennas so that there is less of a need to get up out of your chair to move them around so that you can find the quality you need. The problem with set-top antennas is that they also prove to be more expensive ranging anywhere close to $100 whereas rooftop antennas may cost you significantly less.