Category: Energy Efficiency

Finished Attics: A Lower-Carbon and Lower-Cost Retrofit Approach

By Brendan Kavanagh When Boston area homeowners need more space, often the first place they look is up. The problem is that many attic conversions, even those done relatively recently, have little to no air sealing, poorly installed insulation, and ineffective roof venting. The result is finished space that can be hard to heat, cool,… Read more »

Energy Efficiency and Home Health: What’s the Connection?

protocols for home energy upgrades by Rachel White It may seem counterintuitive, but energy efficiency and home health are intimately connected. Let's start with some basic building science: a house (or any building) is a system. What this means is that each subsystem in your house-from ductwork to windows, from foundations to bath fans-exists in a complex and dynamic interrelationship... Read more »

Operating At Net Zero Energy

net zero by Paul Eldrenkamp and Rachel White A few months ago we completed a deep energy retrofit of a house that we hope will be net-zero energy—in other words, that we hope will produce as much energy as it consumes on an annual basis. If we succeed this will be our first net zero project. There... Read more »

Sustainability, Scandinavian Style

Scandinavian apartment building

by Paul Eldrenkamp This past October I was in Sweden and Denmark with four colleagues from the Northeast Sustainable Energy Association (NESEA). We were on a study tour of sustainable design and green building practices in Scandinavia, a trip inspired by a similar tour we did of Upper Austria and Saxony four years ago. My traveling… Read more »

Preparing a Historic Home for the Next 100 Years

historic home

by Paul Eldrenkamp We’re passionate about fixing older homes. Most if not all of our projects could be summed up as follows: we adapted a dated, inefficient, and dysfunctional, but otherwise solidly-built home to meet the needs of its 21st century occupants. But what does it mean to prepare a house for the 21st century?… Read more »