Green Homes

Building for the future, today – combining the best of historical wisdom and modern technology.

Add to My MSN

Building My Net Zero Energy Home: Floor Joists

3/28/2013 11:32:00 AM

Tags: net zero energy home, Dan Chiras, The Evergreen Institute

floor joists 

In this photo, one of my workers, Joy Coyle, is helping install the band joist from which we will hang the floor joists.  Because the band joist an area where a lot of energy moves in and out of a home by infiltration and exfiltration as well as conduction, we attached it directly to the inner surface of the ICF foundation wall.

the steel beams 

With the foundation walls poured my two workers and I installed the steel beam and floor joists. Joists were attached to the steel center beam by hangers (shown in the center of the photo). The other ends of the floor joists were attached to the band joist. We suspended the joists by hangers. This design eliminated all bridging loss through the band joist, and, thanks to this choice and other design features, all air movement as well. 

subflooring 

Once the floor joists were installed, we began to install the subflooring, in this case ¾-inch OSB. I sealed all the joints with silicon to create an airtight seal and also to prevent water movement from the concrete and earthen floors we poured later during the project. I sealed the floors where earthen floors were installed with water-soluble, no-VOC, polyurethane knowing that it would take these floors much longer to dry that it would take the concrete to set up. 


Contributing editor Dan Chiras is a renewable energy and green homes expert who has spent a lifetime learning life’s lessons, which he shares in his popular blog, Dan Chiras on Loving Life . He’s the founder and director of The Evergreen Institute and president of Sustainable Systems Design. Contact him by visiting his website or finding him on .



Related Content

What Types of Flooring Work for a Small Workshop?

What type of flooring makes sense for a small woodworking shop? Check out these expert suggestions.

Rooting for Working Americans

Most of us would love to live in energy-efficient homes that are good for the environment and have l...

Framing Double 2-by-4 Walls

I decided to build double 2-by-4 walls to achieve 14-inch thick super-insulated walls. This is just ...

The Greenest Band in the Land

The Giving Tree Band has done it again with their latest folk album, "Great Possessions." Read how t...

Content Tools




Post a comment below.

 







Subscribe Today - Pay Now & Save 66% Off the Cover Price

First Name: *
Last Name: *
Address: *
City: *
State/Province: *
Zip/Postal Code:*
Country:
Email:*
(* indicates a required item)
Canadian subs: 1 year, (includes postage & GST). Foreign subs: 1 year, . U.S. funds.
Canadian Subscribers - Click Here
Non US and Canadian Subscribers - Click Here

Lighten the Strain on the Earth and Your Budget

MOTHER EARTH NEWS is the guide to living — as one reader stated — “with little money and abundant happiness.” Every issue is an invaluable guide to leading a more sustainable life, covering ideas from fighting rising energy costs and protecting the environment to avoiding unnecessary spending on processed food. You’ll find tips for slashing heating bills; growing fresh, natural produce at home; and more. MOTHER EARTH NEWS helps you cut costs without sacrificing modern luxuries.

At MOTHER EARTH NEWS, we are dedicated to conserving our planet’s natural resources while helping you conserve your financial resources. That’s why we want you to save money and trees by subscribing through our earth-friendly automatic renewal savings plan. By paying with a credit card, you save an additional $5 and get 6 issues of MOTHER EARTH NEWS for only $12.00 (USA only).

You may also use the Bill Me option and pay $17.00 for 6 issues.