How To Tie Two Gambral Roof Together

A gambrel or barn style roof is simply a gable roof with a change in slope partway up the roof.

How to tie two gambral roof together.

Move slider or directly enter angle to alter sweep angle of lower rafters and change the shape. You have to build the kneewall first then brace it straight and work around the wall and its braces while installing two sets of rafters. Once the new roof is fitted you can then start to add the rafters and build up the new roof in the normal fashion. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube.

Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth. Cut two rafters with a circular saw to the pitch of the addition roof and nail them across the rafters on the old roof. Give special consideration to the two roofs and how they will work with one another. Besides its unique appearance a gambrel roof also serves to maximize the usable floor space in the attic area.

Plywood will be mounted over the rafters and then your roof covering of choice can be used. A gable roof is fairly simple geometrically but when two gable roof lines intersect the geometry gets more complicated. Also most gambrel roofs require a kneewall to support the knuckle or the joint between the upper and lower roof slopes. Nail osb or plywood onto the rafters to enclose the roof.

They form an upside down v with the point at the top of the addition roof. We did this at the top and bottom on both sides of the roof and connected the marks with a line which gave us the placement for the blind valley sleepers. The framing required at the intersection of two roof lines is easy to. Start with the top corners of the roof first.

The work is cumbersome and when you re done this kneewall takes away from the available floor space below the gambrel. Draw a complete plan of how the roofs will fit together before even starting the project. Gambrel roof framing geometry calculator inch this gambrel roof fits in a semicircle and starts as the top half of an equal sided octagon. Nail along the edges of the osb or plywood driving the nails into the rafters every 8 inches 20 cm with 8d common nails.

Use long roofing nails to do this and apply a coat of roofing compound in the gaps and on all of the nail joints. To calculate a gambrel roof select gambrel roof from the roof type dropdown list or click on the appropriate toolbar button to calculate a.