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Maximum roof vent.
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In the early 1980 s ventilation maximum designed and developed a new line of static ventilators for attics.
What does the code require.
According to the national roofing contractors association nrca a power vent with an airflow rate of 1 0 cubic foot per minute per square foot of attic space measured at the attic floor is generally considered to be equivalent to a 1 150 ventilation ratio.
Roof air intakes data bg p right center class rev slidebg data no retina roof air intake vents.
They could be adapted to all types and shapes of roofs as much for residential and commercial as for industrial and institutional use.
Unlike the turbine the 301 static ventilators does not require to rotate to prevent water or snow infiltrations.
Allows ventilation up to 450 sq.
Used in residential commercial and industrial applications ventilation maximum s products are design for all roof types.