Dormers were initially introduced by french architect françois mansart who also happened to introduce mansard.
Parts of a roof.
The entire roof frame is covered in a thin piece of wood called decking or roof sheathing.
Roof sheathing material is usually plywood or oriented strand board osb that is just under half an inch.
Decking or sheathing the surface to which the shingles and or panels are applied.
It usually consists of either plywood.
Parts of a roof decking or sheathing roof edge or eaves edge attic saddle ridge valley underlay membrane eaves membrane underlay membrane drip edge roof vents deflector plumbing vent flashing joint covers shingles.
Most residential homeowners think of their roofs as consisting of just a single part.
Sheathings usually consist of wood like material called oriented strand board or then plywood.
Common parts components of a roof cornice.
19 parts of a roof on a house detailed diagram custom cross section diagram of a house roof showing the many different parts of a residential roof including structural parts the various layers exterior and various roof features such as skylight and chimney.
Like many aspects of a home a roof is fairly complex.
However there are several roofing components that combine to form a waterproof protection system for your house including roofing underlayment metal flashing and rooftop sheathing.
Courses rows of shingles or tiles installed horizontally.
Different parts of a roof and their importance decking sheathing.