The angle at which the sun strikes the window at midday depends on the season of the year and the latitude at which the house is located.
Calculating window awning drop and projection.
Our most common projection for a patio awning is 2 5m but it all depends on how much shading you want to provide.
For example a window that measures 60 in height would have an awning that has a 30 projection.
Determine width c that awnings should be.
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Now you know how to measure for an awning.
Custom awnings don t hesitate to call us if you think you want an awning wider than 20 feet or with a different projection.
A four inch sleeve for the head rod is assumed and automatically added to the calculated projection.
Be sure the window projection does not protrude int the path of foot traffic and should be 6 8 above the ground.
How do you calculate the projection factor of a gable end roof overhang.
Measure the height of the window from the edge of the trim on each end.
B height awning height measured on structure.
You can choose either projection this will change the height of the.
A hem allowance of 1 2 inch 12 7 mm is added to each side of this width.
1 select your desired width and projection x height from the drop down menus.
The projection is how far the awning will project from the building.
Give us a call at 1 800 44 awning.
In that instance you need to ensure the window when cranked out does not hit the awning.
Determine height a that awning should be from bottom to top.
How to measure projection of awning.
A well placed awning will block the hot sun in the summer when the sun is higher in the sky at noon but will allow the sun to shine into the house in the winter when it is lower in the sky at noon.
We can create custom awnings that range from 8 feet to 35 feet and custom projections that range from 5 feet to 13 feet.
Be sure to allow for clearance of window or door.
Contact us to order custom sizes.
The projection of the awning is usually determined by the height of window or point drop unless a crank out window.
The default awning height is the same as the awning projection.
With window awnings projection is replaced by vertical height.
For maximum strength the rule of thumb is to have 3 inches of drop for every foot of projection that the awning can extend.
Measure from side to side at the top of the awning.
Determine projection b of awning.
A standard practice is to add 6 to outside width of door or window.
Call for exact sizes in this instance.
The idea behind the pf is that if your windows are in shade then you can have an increased solar heat gain coefficient in the glass because you are not expecting as much direct heat sunlight to be entering the.
The angle of retractable awnings affects their maximum strength or their wind load.
The projection will be calculated from both the height and depth measurements.
A standard projection b would be approximately half the height of your window.
