But considering attic ventilation has been required for over 70 years it continues to be one of the most misunderstood concepts in the roofing industry.
Continuous attic ventilation.
This is the smoothest and most efficient system.
Continuous soffit vent strip so that it s closer to the fascia than to the house wall.
Your roof may have a ridge vent which is a low profile continuous roof air vent running along the peak of the roof.
Continuous ventilation helps to reduce cooling costs validates the warranties of some asphalt shingles reduces heating costs in colder climates reduces chances of moisture buildup in attics etc.
Or it may have gable vents which are louvered openings at the top of gables.
Trust me continuous attic ventilation is the only way to go.
For more airflow install continuous soffit vents.
As a result many attics are not properly ventilated.
If you don t know how your roof vents work or if you re unsure about your attic ventilation in general you should talk to a roof inspector about your current system and any inherent weaknesses that may be at.
See the benefits of attic ventilation a new roof is more than just shingles.
The soffit vents are now installed but you still need to make sure there s no insulation blocking the new vents.
Loosely nail one side of the soffit then slide the strip vent s flange underneath the plywood.
Touch your ceiling on a warm sunny day.
Most effective ventilation uses a ridge and soffit continuous ventilation system but even these designs can vary from roof to roof.
Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof.
Continuous or individual soffits.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
Trim the last vent to length using aviation snips.
A hot ceiling tells you that the attic is acting like a solar oven raising your cooling bills and cooking.
Soffit vents are one of the most popular intake vent styles.
Most houses however do have some type of vent in the roof or an.
Ideally air circulates under the roof by being drawn up through a continuous soffit vent through the attic space and then out the ridge through a continuous ridge vent.
But few houses have continuous soffit and ridge vents.
They are easy to install under the roof s overhang which is known as the soffit are generally hidden from sight and provide excellent protection from weather outdoor debris and pests while still allowing air to flow into the attic.
And of course attic ventilation is still addressed in model building codes today.