How To Replace Rotten Purlins Under Barn Roof

Use a flat garden spade to remove the shingles and inspect the sheathing to ensure there s no rot.

How to replace rotten purlins under barn roof.

Reader john in covington writes. I am building an all wood pole building. The purlins are 2x8s. The process of replacing existing rafters so that your roof remains intact without removing the roof to do it requires some basic carpentry skills and a few common tools.

Purlins are non pressure treated 1 x 4 x 12 lumber that is installed on to the roof in a specific layout pattern and screw pattern. You can install a new fascia board in a couple of hours with the right tools to d. Over time roof rafters can wear crack or rot and replacements may be in order. If you detect rotten roof.

Change a rotten or damaged fascia board. Before repairing barn support posts we first had do install temporary structural supports to support the weight of the roof. A challenge occurs when clients look to insulate between their roof purlins. We used 2 6 stock and doubled them up installing them under the main barn beam.

I want to insulate the walls and up at the purlins to keep as much usable space as possible with an insulated building. The purpose of the purlins is to provide a solid foundation for the metal roofing panels and trim to be screwed to.