net zero energy home





4/20/2016
If you were to rank sustainable homes primarily based on their energy efficiency, Zero Net Energy homes would rank extremely high. They’re pretty cool — and complicated. Top U.S. home builder PulteGroup moves into the eco-friendly homes market by providing Zero Net Energy homes to the masses.
9/28/2015
Net-zero homes are very popular. What are they and how do you get one? Here are some tips.
4/29/2013
I decided to build double 2-by-4 walls to achieve 14-inch thick super-insulated walls. This is just one way of achieving the high R-values for net zero energy homes.
4/25/2013
To me, the most important features of a sustainable building are not its technological wonders but its simple design features: common-sense strategies that should be incorporated whether the building becomes LEED certified, Energy Star certified, or is just trying to be environmentally friendly.
3/28/2013
Dan Chiras’ superefficient net zero energy home, floor joists, efficient floor design, band beam and rim joist
2/25/2013
The basement of Dan Chiras' net zero energy home is outfitted with PVC pipes, insulation and concrete.
2/10/2013
The devil is in the details in a net zero energy home. Every single step in the design and construction of a home requires efforts to ensure airtightness. The top of the foundation is one detail that deserves special attention.
1/20/2013
To ensure an airtight design, be sure to level and finish the top of the concrete wall and use sill seal below your bottom plates.
1/20/2013
Once the ICFs are in place and the walls are very well reinforced, it is time to pour concrete. This blog illustrates the process in words and photos.
1/19/2013
This blog describes some of the details involved in building with insulating concrete forms, notably window and door buck details that you need to take into account
11/19/2012
Additional reinforcement is required around the garage door opening.
11/19/2012
Scaffolding is required to access the walls to pour the concrete. Scaffolding also helps support the walls.
11/19/2012
ICF walls must be carefully braced to prevent blowout.
11/11/2012
ICFs are not the most environmentally friendly green building product, but result in super energy efficient home, and offer many other benefits, that offset their origin from petrochemicals.
11/11/2012
Insulating concrete forms are an excellent choice for foundations for passive solar, net zero energy homes. They create a highly insulated, air-tight foundation, so essential for extremely high energy performance.
11/3/2012
Don't forget to budget in the cost of deeper excavation and add $1000 to $2000 as a budget contingecy in case you run into bedrock.
10/28/2012
Be sure to install under-the-footing conduit to run electrical and water pipes, including sewer. I like to run pipes and wire under the foot to prevent penetrating the band joist or the foundation to create a more airtight, water tight home.
10/28/2012
Insulation under the slab -- and lots of it -- is vital for the performance of a net zero energy home. So is the footprint. You can make the most of passive solar by creating a longer, narrower house in which each room is heated by the sun.
10/1/2012
Creating a net zero energy home requires that we eliminate all thermal bridging loss -- heat movement into and out of a building. All this starts in the basement.
10/1/2012
To build a net zero energy home, you'll need to design for passive gain. That requires a shallower footprint to ensure that the low-angled winter sun can enter and heat each room.
8/5/2012
In this blog, I describe two of the first and most important design considerations -- the length and depth of the home and the layout of rooms for optimum passive solar gain.
6/21/2012
This blog contains a detailed list of most of my initial design priorities for my net zero energy home so others may benefit from my thinking and experience on creating a passive solar, net zero energy, green home.
6/14/2012
In this blog, I highlight the earliest decisions I had to make to create a net zero energy home: how I was going to build the foundation and walls. Thermal bridging, air tightness, insulation, cost, and greeness are all key deciders.
6/5/2012
In this blog, my architect James Plagmann and I begin to tell the story of the construction of Dan's new net zero energy homes. Dan begins by laying the ground, defining a few terms and describing his experience in this field.
5/13/2010
Three-day workshop announcement on net zero energy homes by leading authority on energy efficiency and renewable energy, Dan Chiras. Learn how to reduce your utility bill through conservation, effriciency, & clean, affordable, renewable energy.




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