polyiso

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

Posted on April 19,2015 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 April 19,2015 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 April 19,2015 by user-756436 in EPS

UPDATED on March 18, 2015 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 — so it’s time to provide a primer on the topic.

Green Basics Insulation Overview
Green Basics Insulation Choices
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