roof

Going Green

Rooftoop Sprinkler

Virtually all commercial air conditioning systems operate via the principle of evaporative cooling:  forced airflow through a cooling tower evaporates water, which extracts the heat of vaporization from the chilled water pipes.  Freon-based refrigeration systems […]
Going Green

Roof Color

The roof is the element of the building envelope with the most direct and long-lasting exposure to sunlight. The color and reflectivity of the roof can have a significant effect on the thermal characteristics of […]
Going Green

Rooftop Sprinkler System

A typical installation is a metal-skinned warehouse-type structure, with a metal roof and no air conditioning. Repair, manufacturing, and many other functions have this kind of building—with many people working inside, in sometimes intolerable conditions […]
Going Green

Attic Ventilation Fan

The attic can reach 150 F on a hot summer afternoon – double the ambient temperature!  That puts a huge load on the air conditioning.  You can add insulation to the attic floor (which also […]
Going Green

The Building Envelope

The building envelope consists of the walls, windows, doors, roof, floor, and foundation. This exoskeleton does much more than merely contain the conditioned air for the comfort of the occupants. It is also a significant […]