Category: green materials

We are excited to begin construction on this Net Zero, Deep Energy Retrofit of a 1900’s bungalow set on an amazingly gorgeous, perfectly oriented site on the Severn River in Annapolis.  We are fortunate to have a client dedicated to efficiency, beauty and quality.  The result will be an extraordinary retrofit of a completely inefficient, moldy, run-down house into a foam-free, healthy, zero-energy home.  We are wrapping the existing exterior framing – wall and roof – in 5″ of mineral wool,  replacing and relocating windows with high-performance, triple-glazed windows and completely air sealing to create a Passive House level shell.  We are employing fixed and operable shading devices to provide necessary shading. Materials and design inside and out are natural, durable and environmentally friendly.  This project is another in collaboration with Michael Hindle of Passive to Positive.

4. Swap old counter tops with eco-friendly ones
If you plan to install an island or replace the old counter tops, try and go green. Green materials not only reduce the carbon footprint, they also give a distinct look to the kitchen. Recycled paper (refer picture), recycled steel, concrete, engineered stone etc. are interesting and distinct materials you could consider. 

Our Net Zero, Passive House, Foam-Free home in New Jersey is taking shape!  The 2×6 framing has been completed and the plywood air barrier installed and taped.  Taping and air sealing the various overhangs and angles has been a challenge, but thanks to the diligence of the owner and Michael Hindle of Passive to Positive, the initial blower door test is set up to be a success!

We are thrilled at the success and completion of our first Foam-Free, (near) Net Zero, Passive House in Western Maryland.  The home is currently in the final stages of testing, certification and interior finishing. Most of the progress can be followed on their website, it’s nicely detailed and as such might offer good inspiration to those DIY types. It has been an educational process with material usage, system selection and install, air sealing and insulation, window install and team collaboration.

The views and placement of the house are extraordinary and achieve the homeowner’s goal of a comfortable, accessible, high performance home designed to view the meadow, marsh and forest.

For more photos of the final walk-thru, visit the project page.

We are helping to realize a sculptor’s design of the Honeycomb House.  The project is designed to meet Passive House Standards, be Net Zero Ready and will be completely FOAM-FREE. It is a pleasure and a challenge to be part of this creative venture with Michael Hindle of Passive to Positive and Daniel Gantebein, sculptor!
We are thrilled that this project is now under construction.  The owner is serving as general contractor and has overseen the successful initial pour of the basement wall!

As well as the install of our foam-free foundation using perlite under the slab.

The StegoWrap vapor barrier was used and the slab was poured.

Given that this was our foundation plan, I’d say so far, so good!

 

Carri and Michael’s home renovation is being featured as a Guest Blog on Green Building Advisor!

like beautiful garage doors by Clopay to compliment the cedar porch…

and clean, straight plumbing and condensation lines set against a backdrop of taped SIGA Majpell.…

 

Upon the arrival of the Roxul mineral wool insulation for sub slab, the contractor relaid the Stego vapor barrier (taped to edges at perimeter).  This delay actually may have been a good thing, as the mineral wool was protected from the elements and heavy foot traffic and slab was able to be immediately poured. 
The framing of the second floor and roof are nearing completion.  We are using 2×6 structural walls with 3/4″ plywood sheathing, all edges and corners taped and sealed.  The headers above each opening are two TJIs with Roxul mineral wool sandwiched between them – we have insulated headers!  The lead carpenter did not find it to be time consuming or of any issue, but rather thought it was pretty cool and a no-brainer.
The fireplace is a Rumford fireplace, the most efficient design in providing warmth to a space.

The construction for the addition and renovation to our Gunpowder project is moving along quickly. Because the under slab Roxul mineral wool was a little difficult to source and had a longer lead time, our contractor got creative and “pre-installed” the StegoWrap vapor barrier to wrap under the sill plate.  We will go back and cut out the barrier to install slab insulation, tape back in the vapor barrier and pour the slab.

Framing is 2×6 walls with 3/4″ plywood sheathing, fully taped to provide our primary air barrier.  We are then installing 1-1/2″ of Roxul mineral wool, Tyvek and then furring strips.  This has been a terrific learning experience as we work with the contractor and project lead to find economical, smart ways to create a foam-free, well-sealed healthy envelope.