Roof Overhang Passive Solar Design

24 dec 2012 02 45 pm.

Roof overhang passive solar design. 18 24 is a good rule of thumb i use 24 w a energy heel. I also urge you to read this article. Roof overhangs passive solar. User 757117 jul 16 2012 05 54pm 3.

Because the sun travels different paths across the sky in the winter low and summer high time an overhang can be constructed to utilize and manipulate the heat energy. Jonr senior member posts 5341. We design them primarily to shed water away from the foundation wall depending on wind direction orientation etc. This is a new overhang analysis tool providing visual feedback of the overhang shade at the selected date time as well as an annual performance chart.

You can use the free software sketchup to draw the house and it will draw sun shadows for any date time at your location. Here s a link to a free web based tool to help you size roof overhangs on a passive solar building. An overhang or some sort of solar control or solar shading is a crucial element in passive solar design because it blocks the sun s heat energy when it is not desired. Cost effective passive solar design.

Borst engineering construction llc competence integrity and professionalism are integral to all that we do. Of course we don t want to solar shade either unless intentionally. Ben we don t design overhangs primarily for passive solar these days old design rules no longer apply. Borst passive solar roof overhang design calculator.