Putting Roof On Barn

Installing pole barn purlins.

Putting roof on barn.

Lay the second sheet out. In most cases the corrugated metal roofing will create a rustic design. Hoist the rafters up on top of the shed or barn roof. Install the first sheet with one long edge parallel and flush.

Lay the first piece of metal roofing beginning in the bottom corner of the roof. Replace any sections of damaged decking using material of a. Put ladders on both sides of the barn or shed and have one person inside of the shed. The purlin are ultimately used to fasten the roof steel providing a diaphragm effect along with the siding when properly engineered and installed.

Metal barns have the siding and roofing as part of the structure and do not require additional contractors. Spacing is typically 24 on center in low snow loads and is reduced based upon truss span and snow load. For a barn style gambrel roof you will need flashing at the top and the 2 middle points where the roof slopes meet. This is especially true since the dips and swells of the corrugated metal come in different widths and shapes.

Some barns may also need electricity or running water. Think of roll formed steel roofing and siding as performing like a very strong very thin plywood and you will have a better grasp of how it performs. The only reason to put osb on a roof would be in the case of a very narrow very long very tall building with high wind loads ones which would exceed the wind shear carrying capacity of the. Tear off any old roofing down to the decking.

Run a tape measure along the base of the barn to get the measurements for the width and length of the barn. Set it flat on top of the. Find out how wide each piece of metal is then divide the width of the roof by that number. Timber or post and beam barns both need a carpenter and structural engineer to build.

Start at one lower corner along the gambrel end. Hoist the rafters on top of the shed and line it up so that it runs flush with the wall stud. You will need this many pieces for a single sloped roof or each of the 2 slopes of a gable roof or 4 slopes of a barn style gambrel roof. For many homeowners installing a corrugated metal roof on a garage shed or patio cover is an easy diy weekend project that can immediately add some design flair.