attic

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

Add Attic Insulation

Older buildings were designed at a time when energy was inexpensive, and it may not have been economical to provide (what is now considered) an effective amount of insulation. A good portion of the envelope […]
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 […]