polyiso

In Cold Climates, R-5 Foam Beats R-6

Posted on March 04,2015 by user-756436 in EPS

Researchers have known for years that most types of insulation — including fiberglass batts, extruded polystyrene (XPS), and expanded polystyrene (EPS) — perform better at low temperatures than high temperatures. The phenomenon was described by Chris Schumacher, an engineer and researcher at Building Science Corporation, at a conference in 2011: “If you measure the R-value of an R-13 fiberglass batt, you’ll get different results at different outdoor temperatures. If the outdoor temperature rises, the R-value goes down.

Exterior Insulation Is Like A Sweater For Your House

Posted on March 04,2015 by user-1048334 in EPS

There are many construction and insulation approaches which allow a builder to create walls and ceilings with high R-values and low levels of air leakage, creating a much better envelope than is achieved with standard framing methods. Structural insulated panels (SIPs), insulated concrete forms (ICFs), double-stud walls, and advanced framing can all produce more energy-efficient buildings than the ol' stick-built number. The one thing they can’t do is to improve the efficiency of an existing house.

How to Install Rigid Foam Sheathing

Posted on March 04,2015 by user-756436 in EPS

What’s the best way to install foam insulation on the outside of a wall? Although GBA has published many articles and videos on the topic, we continue to receive frequent questions from readers asking how to install rigid foam sheathing on exterior walls. My conclusion: it’s time to provide a primer on the topic.

Green Basics Insulation Overview
Green Basics Insulation Choices
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