Building Science Archives - Decumanus Green
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Building Science

Modular Homes are Hip! Coming this fall, we will be breaking ground on another NZE home and once again we are choosing a modular form of construction.  This is our second modular home, and we were so pleased with collaborative relationship we built with the designers...

For those who are interested in creating energy efficient homes and additions, there is something incredibly seductive about spray polyurethane foam (SPF), commonly called spray foam insulation.  In its closed-cell form it offers both unparalleled r-value performance as well as a permeability rating that keeps wall...

Design with intelligence. That is the first principle of our design process. As important as aesthetic character may be, if a house is not designed with intelligence, with a proper understanding of how a house will function and age, it can lead to headache upon...

In his A Short History of Nearly Everything, the travel writer Bill Bryson calls water a “murderous substance.” Insurance companies have institutionalized their hatred of water, as it is by far the largest cause of insurance loses to homes. They often cancel homeowner policies after...

One of the things I love about the sustainable building community is that it shuns dogmatism. We have innovators and leaders within our community who are eager to follow the line of best practices, wherever it may lead. There is very little axe grinding and...

We are currently doing weatherization work in a late 19th Century house in the Town of Lenox. This house presents all the usual problems of large, older homes, homes built with absolutely no regard for the cost of energy. The clients came to us complaining...

The exterior of the shell of the Greenberg residence is just about finished. We have made it as airtight as we could get it. We won’t know how successful we were until we run a blower door test in a month or so. We now...