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Sizing Lunos e2 through-wall ventilation units Installed in pairs, the Lunos e2 provides a unique high-performance ventilation solution for retrofits and new homes. A Lunos system provides between 9 and 22 cfm, depending on the controller setting - a small amount by any standard. For larger spaces, installing multiple systems can ach … read more

How To Prepare For High Performance Windows Windows might make you nervous. They're often big and heavy, yet fragile. And in a high performance building, windows are the most expensive components. But that investment in great windows has a big payoff as well. High performance windows deliver on interior comfort and building efficie … read more

Installing High Performance BEWISO Windows A Historic Brooklyn Home Gets A 21st Century Upgrade The solution for comfort, efficiency, and silence in a historic Brooklyn brownstone building Ben Leer, former 475 Daylighting Specialist and current friend of 475, demonstrates the details of a high-performance install. Austrian-made B … read more

Installation Instructions For Using INTELLO Plus In Wood Frame Buildings With Blow In Insulation This video covers how to properly install INTELLO Plus membrane with blow-in insulation, such as cellulose, loose fiberglass, or Havelock sheep wool insulation. In these situations, INTELLO Plus serves as interior enclosure airtightness, … read more

Installing INTELLO PLUS In Wood Frame Buildings With Batt Insulation This video covers how to properly install INTELLO Plus membrane over rigid or batt insulation in a wood frame assembly. In order to achieve a completely airtight barrier, it is important that the installation is done in a way that minimizes the potential for airle … read more

Install GUTEX Boards + Battens In One Shot Quick Tip Here’s a quick tip for installing GUTEX woodfiber boards with battens for high performance smart wall assemblies. We have a 2x4 wall with INTELLO Plus already installed on the inboard side as the air barrier system. We begin by pre-cutting battens which are positioned in line wi … read more