Flat Porch Roof Ventilation

Soffit vents have much less risk of water entry.

Flat porch roof ventilation.

The answer depends on the type of roof you have. Roof vents help make a home more energy efficient and allow humidity and hot air to escape the. Durable plastic and glass panels in your porch roof provide weather protection while also maximizing natural light. Any type of roof from tpo to epdm can be either hot or cold.

The article notes that the ventilation cannot overcome the significant humidity drive into the flat roof structure caused by small air leaks. 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. Hot roofs have the roof deck then insulation then the roofing material. Porches are often attached to the house.

Though porches are more open to the air they may still have ventilation problems under the roof. Last year i replaced a flat porch roof with a 6 12 pitch. People have strong and differing opinions on whether roof venting affects shingle life. 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.

Porch roof ventilation options. If you have an enclosed porch ceiling have vents to clear the roof cavity of moisture. A cold roof or hot roof. Porch roofs can also develop ice dam problems like the rest of the house s roof.

How much ventilation does a flat roof need. Problems with porch roofs can cause intrusion of water into the interior of the house. It depends on where the insulation is installed.