Minimum Roof Height For Dormer

Express the slope of a metal roof by a ratio which indicates the pitch of the roof.

Minimum roof height for dormer.

You need to consider the slope requirements of each panel to determine this minimum slope. Fix your roof deck and you are done. The ideal scenario is if you can stand upright in the centre of your loft and raise your arm above your head without crunching your hand on the inside of the roof. Most codes require that at least one half of the ceiling in a room be 80 inches or higher and that the ceiling over the other half have a minimum height of usually 48 or 60 inches.

A ceiling height of 1 9 2 0 m once the conversion is complete. The minimum slope of a roof depends on the roof s profile. There are minimum practical requirements for headroom which the designs for your loft conversion must be able to meet. I always recommend at least a minimum pitch of 1 in 40.

You need to have a roof pitch that gives you at least the height of a window and then some. The profile is the shape taken by the sheets when you bend them to form panels. Where a property already has a steep pitched roof the eventual loft conversion will be much easier and ideally you are looking for headroom in the loft of around 2 2 to 2 6 meters. A dormer window therefore is only used with steeper pitches that have a useable interior space in the ceiling area.

This translates into a fall of just under 2 5 on an 8 foot roof. A third consideration that will effect the size and shape of the dormer is the minimum ceiling height.