Venting A Low Slope Metal Roof

Sunday august 5 2018 the traditional metal roof types such as 5v crimp shown above and corrugated are rated by the manufacturers for use down to a 3 12 pitch three inches of vertical rise for every foot of horizontal run.

Venting a low slope metal roof. There are no shingles that can be safely instaled at less than 3 12 pitch and not metal roofs that should go to less than 2 12. Most structural metal panel roof systems are designed to resist the passage of water at laps and other. The main thing is to get the correct metal roof for your applications. Depending on the length of the shed roof a 1 12 roof slope is not flat.

Can metal roofing be used on a low slope pitch roof. So that probably means you are going to use a modified bitumen roof or something like that for the 5 12 low slope flat roofs. Other types of roofs that are not designed to accommodate effective ventilation systems such as ridge soffit vents or gable vents are hip roofs and low slope roofs. Look at our fasciavent which has been designed more specifically for metal roofs and provides the intake ventilation for flat to 16 12 pitches.

In the case of hip roofs you could get away with static box vents or power vents with a thermostat. Most standing seam roofs require 3 12 pitch for proper water shedding. Venting low slope roofs posted in energy. It is important to note structural metal panel roof systems can be used for steep slope roof assemblies too.

Structural metal panel roof systems can be used for low slope roofs because of their hydrostatic or water barrier characteristics.