(Chris Clark | MLive.com) GRAND RAPIDS, MI – For Erik Cronk, installing a “green roof” on top of Rockford Construction Co ... through hot summer days and cold winter nights.

“Everyone studies how green roofs ... in Construction, to offer the first conclusive data that winter green roofs can help reduce heat loss and energy consumption during cold months.

She understands that doors, roofs, wood, etc. expand and contract with extreme cold and extreme heat ... is president of Baltimore-based Boswell Building Surveys Inc. Uhler is a member of the ...

This study of cold-formed steel roof trusses was part of a project funded by the National ... this research provides designers with more accurate performance-based data for conducting whole building ...