Flat Porch Roof Ventilation

If you plan to include a ceiling fan in your porch make sure you take that into consideration when deciding on the height of your ceiling.

Flat porch roof ventilation.

Though porches are more open to the air they may still have ventilation problems under the roof. Consequently the article concludes that the concept of venting a flat roof is no longer safe and instead don 039 t vent the flat roof and install a smart vapor retarder inboard. The answer depends on the type of roof you have. Proper roof ventilation is an important aspect of home construction.

People have strong and differing opinions on whether roof venting affects shingle life. How much ventilation does a flat roof need. If you have an enclosed porch ceiling have vents to clear the roof cavity of moisture. The joint where the top of the porch roof meets the wall needs to be flashed well and most of the vent details for that look to me like they might leak water under some conditions of rain and wind.

Porch roofs can also develop ice dam problems like the rest of the house s roof. A cold roof or hot roof. Porch roof ventilation options. Hot roofs have the roof deck then insulation then the roofing material.

Durable plastic and glass panels in your porch roof provide weather protection while also maximizing natural light. Last year i replaced a flat porch roof with a 6 12 pitch. The article notes that the ventilation cannot overcome the significant humidity drive into the flat roof structure caused by small air leaks. Problems with porch roofs can cause intrusion of water into the interior of the house.

Porches are often attached to the house. Roof vents help make a home more energy efficient and allow humidity and hot air to escape the. Soffit vents have much less risk of water entry.