Originally Posted By: Rafael
This post was automatically imported from our archived forum.
parents are buying a house and i took some pics can you tell me what this
is and how it works on the roof. Also incrawl space what is this device with a fan and what does it do , thanks all
[ Image: http://www.nachi.org/bbsystem/usrimages/s/solar.jpg ]
[ Image: http://www.nachi.org/bbsystem/usrimages/1/10vent.jpg ]