> Passive Solar Eaves Calculator
This calculator will help you work out the required Eave depth for ideal Passive Solar benefit for a North facing (Southern hemisphere) or South facing (Northern hemisphere) window.
Remember, the values calculated here should be taken as a rough guide, it does not take into account other effects (like trees, other buildings etc).
Reset & do another calculation.
Related Articles and Links..
- Keeping cool in Summer and warm in Winter for free!
- Books about Passive Solar
- What is Passive Solar?
- What is convection and how it effects your heating costs
- What is a Trombe Wall and how can you use one?
( out of 5) from 51 ratings. Rate Now!Related News
- The Nugget Plus camper van has all the amenities you need for life on the road, including a toilet 9 hours agoCompact camper vans have come a long, long way since the '50s and '60s, when the only amenity was a mattress tossed on a cold steel floor. RVs have upped the ante with stoves, sinks, and makeshift showers and toilets, but...
- Photovoltaic glass clads a sustainably minded residential tower in Melbourne Sat, 18 Aug 18, 5:00amMelbourne-based architecture firm C. Kairouz Architects recently completed The General, an eight-story building that’s said to be Australia’s first-ever large-scale residential structure to use photovoltaic glass on its...
- Singapore, the City in a Garden, sets an example for a green planet Thu, 16 Aug 18, 5:00amSingapore has transformed itself from a hub of pollution to an environmental dream-city in the past 50 years. From afar, the country's landscape looks like any other modern city with abounding skyscrapers etched into its...
- Energy-efficient Guitar House embraces indoor-outdoor living in Calgary Thu, 16 Aug 18, 1:00amNear downtown Calgary, the Guitar House is a compact modern home that celebrates music, family and the natural environment. Designed by local architecture practice Alloy Homes, the family residence emphasizes indoor-outdoor...
- Treehaus combines contemporary design and passive energy in the Utah forest Wed, 15 Aug 18, 3:00amIf you were lucky enough to have a treehouse as a child, you understand the thrill of having the wonders of nature at your fingertips instead of admiring them from afar...
Related Tags..
energy efficiency, sustainable development, passive solar, insulation, buildings
Comments left
- Bill said:
Does altitude affect this calculation? For example I'm in Denver with an altitude of 5280 ft. My latitude is about 39.66. My current home has lots of south facing glass and no roof returns, eaves or other shading devices over its windows. It can overheat in early March all the way through Thanksgiving in late November. On the home I'm going to build should I reduce the "winter shade" value to less than the 21% recommended for 39 degrees latitude. If so how much?
ON Mon, 16 Apr 12, 12:07am probably from United States Reply to this comment
- Eco Guy said:
Altitude won't effect it, the angle is relative to the Sun...
ON Tue, 17 Apr 12, 5:04am probably from Australia Reply to this comment
- Eco Guy said:
- Marg said:
Very suprised by the result. The normal recommended eaves in Victoria are approx 400mm, but we wanted to tweet ours a little to be sure to get optimal passive heating, but shade from November through to end March. Thought we might extend the eaves to 600mm, but calcul;ator tells us over a metre. Seems way to long!
ON Thu, 20 Sep 12, 1:52am probably from Australia Reply to this comment
- Rob said:
As stated above: "the eave depth will be deeper than other calculators which only provide part shade during Summer"
ON Thu, 28 Nov 13, 1:49am probably from Australia Reply to this comment
- Rob said:
- David Warner said:
Obviously the southern facing windows would have greater impact of solar radiation.
ON Wed, 7 Nov 12, 11:31am probably from India Reply to this comment
- Caveman said:
When you refer to 'summer' in the eave calculator do you mean the astronomically defined summer, i.e. midpoint at the summer solstice? or summer in the sense of the way we think of seasons i.e. June - September in the NH. thank you
ON Mon, 21 Jan 13, 9:14pm probably from France Reply to this comment
- Shalyn said:
Does the pitch of the eave change the calculation?
ON Wed, 26 Jun 13, 7:11am probably from Australia Reply to this comment
- Peta said:
Im a little confused with this calculator, the height from the ground seems minimal, my wall heights is going to be 2.9. When i put in the height from bottom of window to eaves, surely there needs to be a box for total wall height?
ON Sun, 25 Jan 15, 4:15am probably from Australia Reply to this comment
- David Timms said:
Hi, i am designing an alucobond fascia/eave set up. The house is north facing and has full height window below. Will reducing the eave by 100mm make a big difference to the overall energy rating. I am in south Australia.
ON Sun, 3 Jul 16, 1:17am probably from Australia Reply to this comment
- Sharon Buydens said:
Gosh, after looking at tons of passive solar home design books (and writing one--I was wanting to give an easy online tool to people for their use) and searching online forever, I finally found your EASY tool here. THANKS! So glad to see something so simple to use compared to other sites.
ON Sun, 7 Jan 18, 11:19pm probably from Canada Reply to this comment
Got a question or comment about this?
Find what you were looking for?.. Not quite what you expected?.. Got a question to ask people?Share your thoughts and use the form below to post a public comment right on this page.