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Building Matters
Call for Building Pros to Try New Energy Modeling Software

Ekotrope seeks residential construction professionals to test its HERS-specific energy modeling rating system in a free trial
Green Building News
Free Online Calculators for R-Values and Costs

A Massachusetts software company offers part of its application for free, allowing builders to compare different roof, wall, and floor assemblies

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Call for Building Pros to Try New Energy Modeling Software