Roof Rafter Seperation

If your local building authority has a rafter spacing code you may not space rafters wider than required by code. The top portion of the rater was still in contact but by the bottom of the edge where the rafter abuts the ridge board a full one inch gap was present. The reason is that in a rafter ceiling joist roof system the ridge represents the apex of a truss.

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The inspector recommends a structural engineer to determine cause.

Roof rafter seperation.

Condition was only present on the rear. At the top where the rafters meet they are either angled to meet at a point or attached to a horizontal ridge beam. Builders aren t bound by standard rafter spacing measurements. The attached photos show rafter separation and broken collar ties.

A ridge beam runs the length of the shed roof connecting every pair of rafters. Typical rafter spacing codes will specify a minimum spacing of 16 inches 19 2 inches or 24 inches. If anything has the ability to force the rafter ends up tight against the ridge it would be the formidable weight of the roof itself especially a tile roof. As home buyers should we walk from this purchase.

The sellers investors who are flipping a foreclosure have upgraded the floors that cover potential slab cracks. Some shed rafters do not incorporate ridge beams either due to small size or lack of technical know how. The rafters on the rear side of a steeply pitched roof were separating from the ridge board. Rafters must be strong enough to hold the roof sheathing and the shingles.

Rafter and roof joist spacing is only one part of a complex roof design that works together to form a structure that meets building codes and can hold up the weight of the roof and roof load. As such the ridge and the adjoining rafter ends are entirely in compression. Very easy to do. I m no engineer but it seems like this is due to settlement but how bad.

This video shows how to repair a split rafter. With the proper tools anyone can do this.

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