Personal Residence

Energy Hog – Attic Air Sealing

The first of our home improvements projects to cut the energy usage in the home was air sealing in the attic. Now I have to admit that when I started doing the work in 2005, I did not fully understand the importance. Now that I inspect homes or follow up on insulation contractors’ work, I see firsthand how important air sealing work really is.

A simple explanation of what air sealing is, it is the work performed on the home to reduce the amount of air infiltration into the home by sealing small and sometimes large gaps and crevices. I utilized the DO–IT–YOURSELF Guide to Sealing & Insulating with ENERGY STAR to perform the air sealing in the attic before installing insulation. These holes in the home can waste approximately 25% of the typical homes heating and cooling cost and is almost always the most cost effective improvement that can be done to most homes to reduce the utility bills and increase the indoor air quality (IAQ).

Air sealing not only helps reduce your heating and cooling costs, but sometimes more importantly, air sealing helps to improve the indoor air quality and durability of the home. Tighter homes typically have less dust because not as much gets pulled in through these cracks; they are typically more durable because excessive air and moisture does not enter the walls or attic that could cause mold and rot.

The goal of air sealing your attic is to make the ceiling as air tight as possible to stop any air movement. Now most home owners don’t think of their attic being full of holes. However it is full of them, plumbing stack penetrations, wires, can lights and other ceiling fixtures. If you hold your hand over these holes, you can feel the hot or cold air from inside your home making its way into the attic, costing you money. Because as this conditioned air leaves your home, unconditioned air is being pulled into your home through other gaps or crevices in your home, typically in the basement (more on sealing the basement in a future post). When your home has low levels of insulation, it is easy to find these holes. However if you have good levels of insulation, you can find these holes by looking for discolored insulation, as most insulation types are air filters and the discoloration is a sign of air movement. So review the air sealing guide, buy a few tubes of caulk and cans of Great Stuff and seal up those holes and start saving.

Here is a video series on the Fine Homebuilding magazine website on air sealing your attic that is worth watching, or check out other attic air sealing videos on YouTube.

Energy Hog – Improving the Indoor Air Quality (IAQ)

Some of the very first projects that we did to the home even before we moved in had a great impact on our home, transforming it into a “green” machine. Now they had no impact on the energy efficiency of the home, however they have made a great impact on the Indoor Air Quality (IAQ), which is a very important issue as you tighten up the home and improve its overall performance.

Loading carpet to be recylced.

The first project we tackled was removing about 75% of the wall to wall carpeting in the home. This ended up being the main living areas, hallways, as well as our expected child’s room. We did feel somewhat guilty for removing the brand new carpet that the previous home owner installed to sell the house. Especially since we removed it in July, and according to the label, it was manufactured in May of the same year. So as you can imagine, it was in excellent shape. So the larger pieces went to the Habitat for Humanity ReStore to be reused in someone else home. The remainder of the carpeting found its way into a trailer on its way to get recycled thanks to a local carpet installer.

Dirt found under some of the carpet that was removed.

Our primary reason removing the carpet was to expose the hard wood flooring that runs throughout the majority of the house and was hidden by the carpet. We had the floor refinished using Bona waterborne finish that has very low levels of Volatile Organic Compounds (VOC), and is very durable. Another reason for removing the carpet was we did not want our newborn child crawling on the carpet. So the carpet was replaced with an all natural handmade wool area rug in our living room. The reason being is an area rug can be thoroughly cleaned where wall to wall carpet will hold onto dirt, dander, dust mites and pollutants that people track in from the outdoors, such as oil and pesticides and can never be fully removed. A question posted after we removed our carpet here on the United States Green Building Council (USGBC) Green Home Guide website stated that the average carpet removed from a home is seven times heavier than when it was installed. This being contributed to the fact that carpets cannot be cleaned thoroughly like an area rug can.

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Kill’n a hog….an Energy Hog

Our home as it was purchased in 2005

Back in 2005 my wife and I purchased this ranch with a walk out basement. It is/was your typical 1960′s stick built home. Very low levels of insulation, single pane aluminum windows, with an unfinished basement and a huge backyard for the area, with lots of old growth trees. The view out of the dinning room window was the selling point. Some other nice amenities is that it is in a developed neighborhood with schools that are within walking distance, grocery within a mile. The town also has a very active year round farmers market. Plus the home was the mid point between both of our jobs at that time and is relatively close to a bus route.

The back of our home as it was purchased in 2005

However during the home inspection we found some troubling things. There was little to no insulation in the attic, the basement walls were uninsulated. And what makes that even worse is the fact that half of the house foundation is above ground. Not to mention the aging heating and cooling equipment. So we looked at this house as a blank slate, giving us the opportunity to not only renovate the home to fit our needs, but to do everything in an environmentally friendly way and to do it within our limited budget.

So this is where “Symbiotic Home” originally began. A website to help educate others on what can be done to green their existing home. Now with a good portion of the projects done, I will be developing this new series of posts that will backtrack and document each of the projects that we have tackled, and will even discuss future projects that we would like to accomplish. Giving you a glimpse of what we have been doing, how we have been doing it, and why as we green this energy pig.

So follow my home renovations as I walk the walk and show that green/sustainable construction can happen on the typical working families budget and I look forward to the discussions that this may create.

-Josh