From the category archives:

Green Programs

Passive House Ventilation Design

January 20, 2010

We thought it would be a good idea to review our new ventilation strategy and design implemented in the recent Passive Project. The ventilation strategy in the 100K House was different than most typical houses and the Passive Project took things a step further. We’ll start with the outline:

Use a very efficient mechanical ventilation system [...]

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Building Gaskets and Air Sealing Tape

October 30, 2009

Yesterday we looked at some lessons learned from our aggressive air sealing goals on the Passive Project. In doing so we mentioned that we will be utilizing building gaskets and air sealing tape to help obtain the very difficult building air tightness goal of 0.6 ACH @ 50Pa that is required by the Passive House [...]

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Passive House Air Sealing – Lessons Learned

October 28, 2009

It’s been a while since we posted on any technical aspects of the Passive House we are trying to build in the Passive Project. We recently tested our air sealing with a blower door test prior to drywall at the homes and I figured it would be a good time to bring up some thoughts [...]

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Super Efficient Windows for the Passive Project

September 11, 2009

In addition to insulation levels and air sealing details, the windows and external window shading in the Passive Project is upgraded from the 100K House Project.
There is a lot more to windows than insulation levels, but in order to keep things simple we will focus on this aspect and cover energy efficient windows in more [...]

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Net Zero Water

August 27, 2009

You’ve probably heard the term Net Zero Energy before, but have you ever heard the term Net Zero Water?  This up-and-coming concept is considered one of the most stringent goals laid out in the Living Building Challenge (LBC).  Sure, the LBC requires a building to abide by Net Zero Energy rules, follow a strict materials [...]

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The Net-Zero Postgreen Home Is On The Way

August 19, 2009

Before we go into detail about our home, there is some argument about how exactly to define Net-Zero Energy homes. For the sake of clarity, we go by the simplest of definitions. Net-Zero Energy basically means that the home produces as much or more energy than it consumes. This means that the home doesn’t buy [...]

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New Passive Project Page

July 15, 2009

The goal of the 100K House blog is to facilitate learning about sensible, green building on the interweb. So many times when we find a good project out there, little details are provided on the construction especially in one concise format. That’s where we are trying to fill the void with the 100K blog.
To that [...]

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Passive Project Foundation and Slab Insulation

June 11, 2009

Many have been waiting for us to start posting on specifics of our Passive Project which contains two homes – one of which is seeking the stringent Passive House certification for extreme energy efficiency. We have been waiting to post until we have completed each section of the build. This ensures that we post once [...]

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LEED Landscaping Requirements

February 14, 2009

As we near the completion of the 100K House project, we need to start thinking about our landscape design. As always we have to consider LEED reqs and points, modern design and budget. We are talking to a few local landscape designers in the area interested in the project. Due to budget and time constraints, [...]

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The Philadelphia Passive Project – 100k and the Passive House Standard

January 30, 2009

We just realized that we have been uncharacteristically quiet about our next project. We are due to break ground in just a couple of weeks, and we have barely written a word about it. This is very unlike us, and I will begin to remedy the situation right now.
Our next project is similar in scale [...]

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