There are several factors that are used to determine this figure.
Snow load awnings.
When we started promoting solara in northern europe more than 20 years ago we needed to come up with a solution for heavy snow loads and still allow large spans.
Rigid awnings and canopy shutters shall be designed to resist the loads set forth in chapter 16 of this code except that structures or parts thereof which are intended to be removed or repositioned during periods of high wind velocity shall be designed in their open or extended position to design pressures based on a basic wind speed of minimum 115 mph 3 second wind gust with applicable shape factors and to resist not less than 10 psf 478 pa roof live load.
Roof snow and wind loads are based on the historical records for a given location however the local building authority should always be consulted to determine the correct roof snow and wind load to use for a given site and application.
Great for gathering and outdoor storage.
Aluminum framework with polycarbonate sheet.
Heavy duty steel frames.
Resist sunlight wind and rain.
Aluminum awnings are rated with a lbs per foot snow load.
The weight of snow varies greatly.
The tributary distance is the space between points of attachment such as the hanger and an i beam and the beam to the gutter.
Attached you can find one of our aluminum sunlight shade awning project cases.
These aluminum awnings are perfect for anyone desiring awnings and living in a northern climate that prefers not to take the awnings down in the winter.
The hercules line of canopies are durable and easy to assemble featuring a 2 in.
Also offering a good decoration effect.
Only the aluminum awnings are designed to handle snow loads as heavy snow loads could easily tear and stretch out a fabric window awning or door canopy.
Light fluffy snow may only weigh about seven pounds per cubic foot.
While snow load is primarily an issue dealt with by the awning frame and design it was also suggested that the type of fabric that you use can also make a difference.
With the heavy duty extruded louvered system you can be sure you have a high quality adjustable patio cover in any weather.
If you live in the us our snow load calculator compares the total weight on your roof with the permissible load calculated according to the standards issued by the american society of civil engineers regarding the minimum design loads for buildings and other structures asce7 16.
They are built into a self supporting attached or free standing framework and the canopy is made of retractable waterproof vinyl retractable louvers or rotating louvers.
Alunotec patio awning is as one of our hot selling products well received by clients.
Hercules snow load canopy.
Several retractable awnings better known as retractable pergolas retractable louvered roofs or rotating louvered roofs are rated for snow loads up to 80 psf.
A fabric with a slick surface such as a vinyl material is difficult for snow to adhere to and it often slides right off.
Most importantly are the gauge of the awning panel and the tributary distance.
