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Gable Vent

ptlycldy
Specializing in Whole House Fans & Attic Ventilation
Visit our online store at ventmastersstore.com

attic-ventilation

SECTIONS:
   Vent Masters Inc.
Showroom and Retail Store
   1901 Youngfield St #108
    Golden CO 80401
    303-233-1025 showroom 
    303-271-0749 office

    303-279-3912 (fax)

Our online store is at - ventmastersstore.com







Crawlspace Ventilation

Note: Radon Mitigation is a separate field outside of the scope of our work.

FVentStandard foundation vents are installed to provide ventilation to the crawlspace. They are opened and closed by sliding a lever.



AutoFVAutomatic foundation vents open automatically at 70 degrees F and close at 40 degrees F. Below 40 degrees heat loss and even freezing is a problem.


FV-poweredPowered ventilation systems use a humidity sensor to operate a fan to ventilate the crawlspace.


Crawlspace ventilation is not common in the metro Denver area. In some low-lying areas crawlspace ventilation is used to attempt to control moisture in the crawl space. However, care must be taken when installing crawlspace ventilation systems or the problem can be made worse. Warm, moist air entering a cool crawlspace can actually condense moisture out of the air. And freezing cold air flowing through the crawlspace in the winter can freeze pipes and drive up heating costs.

In the parts of our country where crawlspace moisture is a real problem they have been moving away from ventilation in favor of unventilated crawlspaces. The first concern in these systems is eliminating any source of groundwater entering the crawlspace. Sealing the foundations and installing sump pumps is done if necessary. Then, a waterproof membrane is installed as a moisture barrier to seal the water out.
The goal is to keep the air in the crawlspace dry, not the ground. Many interesting studies have been done in this area.  For more information send us an e-mail or call.

 
Except in rare cases, Vent Masters Inc. no longer does crawlspace ventilation.


Foundation vent photos used with permission of Air Vent Inc.