In this case the most reflective roofing material ivory ir selective metal tile is 23 4 f cooler than attic covered with dark shingles.
Cooler attic systems.
It uses a fraction of the energy compared to a traditional air conditioner or traditional whole house fan also known as an attic fan or whole house attic fan and it is significantly quieter too.
A highly efficient whole house fan system matches the ventilation in the attic to the airflow from the fan.
It s best for use as a supplemental ventilation system in homes with air conditioning already installed and in mild to moderate climates.
Portable air conditioners do need to be vented to pump the hot air outside.
It uses precision balanced blades and bracing for quiet and efficient ventilation.
It s a standalone unit that s about two feet tall and 18 inches wide and has wheels for mobility.
A portable air conditioner is the easiest solution for cooling your attic.
In of net free air sfnf ventilation for every 750 cfm of air moved by the fan.
The third graph shows attic temperatures from the middle of the attic for several different types of roofing as well as a sealed attic.
A comfort cool whole house fan is an affordable alternative to expensive air conditioning.
This process of cooling your attic allows your home to stay cooler longer because it is no longer working against your attic which can get up to 160 ºf.
Our fan manufacturers recommend a minimum of 1 square foot 144 sq.