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= Eco friendly building =
 * Links [[Building/Borer]]
== Design ideas / principles ==
 * Eave overhang: A general rule of thumb for the depth of your eave is 45% of the height of your window (this is the measurement from the bottom of your window to the underside of the eave).  From: [[http://greenhomesnz.co.nz|Green Homes Nz]]

 * Thermal mass as energy stabiliser - Water has the highest VHC of these and the table tells us that it takes '''4186KJ''' to raise the temperature of one cubic meter of '''water''' by one degree, whereas it only takes '''2060KJ''' to raise the temperature of an equal volume of '''concrete''' by the same amount.

 * Windows - double glazing with Low-e reflective coating to reflect infrared heat back.
   * Insulated frames, especially aluminium frames need a thermal break

 * Wall insulation
   * https://www.energywise.govt.nz/at-home/insulation/wall-insulation/
   * https://www.building.govt.nz/assets/Uploads/building-code-compliance/e-moisture/e2-external-moisture/constructing-cavities.pdf

 * Roof water harvesting and storage
   * Storage - on the cool side of house
     * In Wall
     * Under Slab
     * Under ground yard tanks
     
 * Roof designed for solar
   * http://www.roofer.co.nz/case-studies/a-unique-power-generating-roof/

 * Build for solar in future
   * [[attachment:2014-Build-pv_solar_ready.pdf]]

== Adhoc items for the home ==
 * Electric gates http://www.gatemaster.co.nz
 * In concrete slab water storage - https://www.aquacomb.co.nz/
 * 2017 - !LiteForm - ICF Blocks and concrete.
   *  http://liteform.com/wp-content/uploads/2017/05/FB_install_print2017.pdf

*  Green Homes New Zealand: 2018:[[attachment:GHNZeBook2016-Web181116.pdf]]

* http://www.greenbuildingadvisor.com/blogs/dept/musings/green-building-beginners
 [[http://www.stepin.org/casestudy.php?id=edenproject&page=9|Eden]] in Cornwell England. Geodesic domes.
 * Designing underfloor water heating. [[attachment:ITS-SOLAR-underfloor-heatingAfripex.pdf]]
 * Twisted fishingline muscles
    * http://io9.com/scientists-just-created-some-of-the-most-powerful-muscl-1526957560
= Heat mass =

 * [[http://en.wikipedia.org/wiki/Trombe_wall|.]]A simplistic rule of thumb that is often used when designing dense masonry walls, is that heat will be absorbed and lost at around an inch per 2 hours. i.e a 4inch (100mm) thick masonry wall will absorb and shed its heat load in around 8 hours and a 8inch (200mm) thick wall in around 16 hours.


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CategoryEcoFriendly