How Windows Make (or Break) Wall Performance

The thermal performance of your building’s walls is only as strong as the weakest link, and windows are too often that weak link. Even if you’ve gone to great lengths to build a super-insulated high performance wall, if you poke that wall full of holes, then plug those walls with mediocre windows, you will get a poorly-performing wall. Bad windows will ruin the best wall assemblies. Conversely, good windows can…



Window Specs and Submission Processes

Frontloaded: Dealing with specs, u-values, little-e acoustic, and the NYC DOB submission process. With a switchover to an automated DOB project system, New York City now requires a more rigorous up front paperwork filing process. When it comes to windows and doors, understanding the specification and testing thresholds being requested by the DOB versus what's being requested by the passive house community adds another layer of complexity. In this talk…


NAPHN Passive House Windows Workshop Series

The Windows of Change are Blowing When the first Passive House was built in Darmstadt, Germany, there was not a single window on the market that met the stringent Passive House performance requirements. Fast forward to today, and the situation is vastly different: a robust European market with over 200 certified Passive House window products. In Canada and the US, the Passive House market is heating up. With countless low,…