How Should Heat Vent Light Be Vented Through Attic

Noticed one of the attic vents was not working.

How should heat vent light be vented through attic.

Ridge vents these vents are installed at the top of a sloped roof and are commonly used on shingled homes. Gable vents these vents are designed to be visible and act as architectural touches. All vents are passive and i have four of those spinning fans on top outside that pull air in through the soffit vents. Bathroom ventilation fans and and clothes dryers should be vented directly to the outside and never exhausted into the attic as this can introduce harmful moisture and heat into the space.

Told that the 2 attic power vents are the only attic ventilation i have the house does have vented soffits every other soffit cover is vented. To properly vent there must be a minimum of 1 between the underside of the sheathing and the top of the insulation to allow for air flow. Connecting a duct to the top of the inside of the roof where the ridge vent is if that s what he s suggesting is a poor idea and likely not to code. The framing of a cathedral ceiling creates individual plenums between each rafter every one of which should be vented.

It should be vented in a way that no zero air can move from the fan exhaust duct into the attic. 50k water heater needs 2 seperate vents each equaling 50 sq. Each individual plenum must connect to an intake vent and an attic vent. But i also live in a area that is high in heat in the summer 90 105f with rh at about 40 60 and with rain this shoots up but it can not rain for months on end.

Things have been ok low energy bills house very comfortable. Inch per 1k of input btu. Help purchased home 8 years ago with 2 power attic vents. I can feel some water around the metal wrapping of the vent where there is an opening.

If covered with a grill you need to oversize it because metal grills are considered on 60 to 75 open area. Box or dome vents these static vents are installed directly into holes cut into the attic roof. If you do this type of venting you need 1 sq. Ridge vent is for venting the attic.