Roof Sprocket Detail

A horizontal timber or metal resting at the peak of the roof the rafters and trusses are connected to the ridge board for a cohesive framework.

Roof sprocket detail.

We also manufacture customized profiled sprocket ends to add a prestigious look to your roof. If a sprocketted or bell cast detail is used then eaves courses should be no lower than the minimum recommended roof pitch. Hips may require bedded hip ridge tiles and valleys may require an open lead valley to be used. Anyone standing that close to the house on the.

Centuries ago the eavesdrop was that indentation line made around a structure when the rain fell off the edge of the roof onto the ground. A sprocket eaves detail is formed when the lower courses of tiles or slates lay at a shallower true pitch than the tiles or slates in the courses above. Because the minimum recommended roof pitch for a plain tiled roof is 35 degrees 40 for hand made roof tiles the general roof pitch needs to be greater to ensure that the bellcast is at least at the minimum. Bellcast sprocketed eaves section through eaves showing bellcast or sprocketed eaves because the minimum recommended roof pitch for plain tiles is 35 degrees 40 degrees for some handmade plain tiles the general roof pitch needs to be greater to ensure that the bellcast is at least the minimum pitch.

Where roof slopes meet at valleys and hips the sprocket will have an effect on the fit of the arris curved valley tiles and the arris bonnet hip tiles. The lowest gear at the front is the smallest. The use of the triangular sprocket piece on top of the rafter foot will not aid its strength in this respect unless of course it is carried up the rafter well beyond the wall plate position. A custom profiled sprocket end is a profile cut piece of timber which is attached to the overhang of your roof trusses which adds an aesthetically pleasing look to your home and sets your roof apart from the rest.

Sprockets for roof trusses. Think of how a roof extends beyond the siding and then think about how a hard rain may roll down the roof and onto the ground away from the structure. Truss and any of the details where the rafter overhang is excessively long. Fix a plywood board or proprietary tray to provide continuous support to underlay to prevent water retaining troughs.

It is a waterproofing layer made of regular felt stacked above the solid. Fix a rafter spacer tray to provide a clear air path between underlay and insulation. It depends on whether you are talking about the front sprocket the one at the pedals called a chainring or the sprocket at the rear derailleur. In general this would mean beyond 700 or 800 mm depending on the rafter depth.

Why does this happen or why would anybody want to form this detail.