Getting Started
Discover straightforward fixes to use less oil and gas
Ask a Cooperator
“Everyone’s sick of hearing about heat pumps from me!”
A Q&A with Kathryn DeFehr, Brooklyn architect and co-op resident, on how to sway a co-op board
Case Study
A facelift into an energy efficient future
An Upper East Side co-op replaces white-brick façade with porcelain tile, fixing leaks and improving insulation
Efficiency
Betting on a better Building Management System
An automated program to monitor building systems helps Manhattan co-op inch toward LL97 compliance
Profile
How Stefan Unger got “married to the project”
This co-op member became an expert in rainscreen cladding by leading his building’s renovation project
Clean Energy
Out of the china cabinet and onto the façade
Cutting-edge porcelain tiles offer durability and low maintenance for Manhattan co-op

Manhattan