Overhang Recommendations
For south-facing windows in temperate climates

This page has suggested overhang dimensions for south-facing windows for temperate climates (latitudes 24 to 48 degrees north or south; non-extreme climates). Please read the important instructions and FAQs before using this information, paying special attention to the various climate types.

Select Window Height

Enter the window height in any units: [recalculate]
Recommended Overhang Dimensions

Window Height: 5 units
    CLIMATE TYPE
    Warm Mixed Cool
L
A
T
I
T
U
D
E		 24° depth: 1.5
height: 0.5		 depth: 1.5
height: 2.5		 N/A
28° depth: 2.0
height: 0.5		 depth: 1.5
height: 2.5		 N/A
32° depth: 2.5
height: 0.5		 depth: 2.0
height: 2.0		 N/A
36° depth: 3.0
height: 0.5		 depth: 2.5
height: 1.8		 depth: 1.5
height: 1.5
40° depth: 3.5
height: 0.5		 depth: 3.0
height: 1.5		 depth: 2.0
height: 1.5
44° N/A depth: 3.5
height: 1.5		 depth: 2.5
height: 1.5
48° N/A depth: 4.0
height: 1.2		 depth: 3.0
height: 1.5


How overhang height and depth
are measured for horizontal and
pitched overhangs


Example

To calculate the recommended overhang for an 8-foot-tall, south-facing window in a building located in a mixed climate at 36° latitude, enter "8" for the window height and click "recalculate". The page wil reload with a new data table with values for an 8-foot-tall window. Cross-index the 36° row and the Mixed climate column, and the recommended values are an overhang depth of 4.0' and a height above the window of 2.8'.

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