Vent Ducting In Attic

Otherwise moisture will build up and you can face possible mold problems in your attic.

Vent ducting in attic.

What i ve observed attic temp 50c vent temp 21c attic temp 37c vent temp 18c attic temp 25c vent temp 13c not sure what the r value off flexible duct or main metal duct is. Ridge vent must me installed per the manufactures instructions. Installation of this type of attic ventilation involves leaving a gap in the sheathing along the ridge and covering it with a perforated vent. It can do both.

Once you have it marked remove the hood and cut a hole in the wall or ceiling. Best ventilation is open soffit venting to a open vented ridge vent. The answer is rafter venting. Your attic has vents for a reason.

When these ducts are exposed to exterior air the plastic jacket never gets cold enough to permit condensation because the hot attic air keeps the plastic jacket warm. Rafter vents or. Doing so would fill your attic with. I live in montreal and had a lennox air conditioner and ducts installed in the attic.

One last thought attic ventilation is not there to get rid of heat it is there to get rid of excess moisture accumulating from the home. Condensation can be a problem in an uninsulated attic so the homeowners trades resource center recommends installing rigid pipe with a minimum slope of 1 8 inch per foot toward the vent outlet to keep water away from the fan. Cover the hole that you are not using for exhaust and secure the hood to its final positioning to mark the location of the vent duct. Can a dryer vent go up through an attic.

The most common cause for this is inadequate ventilation in your attic. If there is inadequate ventilation in your attic then contract your local roofing contractor for information on adding roof vents. Most attic ducts are insulated flex ducts that is flex ducts with r 6 or r 8 fiberglass insulation along with an exterior polyethylene jacket. Attic venting process to choose the proper ventilation system for your attic you ll first need to know the total area of your attic.

In some localities the building department may require the use of r 3 to r 8 fiberglass pipe insulation to control condensation and even when it isn t required it s. The ducts for the upstairs unit are in this attic. Your vent hood will have places available for either attic or wall exhaust. Step 2 run the ducts.

The international residential code allows you to run a dryer vent through the attic but you can t terminate it there. Soffit vents these are vents installed on the bottom side of the eaves in your attic.