Ramtech's permanent modular construction (PMC) approach can incorporate a number of sustainable features into a commercial modular building's design, manufacturing, installation, site development and finish-out. Our PMC construction method is recognized for substantially reducing materials waste and improving air quality by utilizing a factory controlled manufacturing environment that segregates the building materials from any exposure to inclement weather. The use of a simultaneous offsite and on-site construction process also minimizes disturbances to the environment by reducing the amount of vehicles and equipment that are required at the construction site. Other sustainable features that are typically incorporated into a permanent modular building's design include white reflective TPO roofs to reduce the heat island effect, water use reduction strategies for restrooms, and optimized energy performance that stems from the 2009 International Energy Conservation Code. Ramtech has constructed numerous LEED Silver Certified single and multi-story permanent modular buildings ranging in size from 14,000 to over 120,000 square feet.