The PIMA Quality Mark cm Program establishes a third-party certification procedure for Long Term Thermal Resistance (LTTR) R-values of permeable faced polyiso roof insulation.
Although green roofs have only existed in the United States for about a decade and expertise with green roof applications is sometimes hard to find, one thing remains understood: waterproofing is the most important and critical element of the system.
This article shares the results and analysis a survey on contractor-consultant relationships, as well as some points you might consider to strengthen your business and to benefit the industry.