To measure the effectiveness of the smoothline roof ventilators two temperature loggers were placed inside and outside the house.
Smooth line roof vent.
Plastic oddities mv34 roof vent cap helps keep out leaves debris flying insects animals used on roof vents portable toilet vents fits 3 or 4 pipe bolts onto pipe by plastic oddities 9 88 9.
The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.
Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.
The temperature was logged every 20 minutes for several days before and after the installation of the smoothline roof ventilators.
An opening is cut into the roof sheet from the bottom line of the ridgecapping the ventilator slips up under the ridgecapping and has an opening underneath which aligns perfectly with the opening in the roof sheet to allow air to enter and evacuate the roof space and is fixed to the roof sheet with rivetts or screws to completion another.
Vent your bath and kitchen exhaust fans through the roof through a special roof hood.
Chart 2 shows the indoor and outdoor house temperatures after the vents were installed.