Overbuild Roof Framing

The exposed edges of the 3 layers of rigid insulation are no longer exposed.

Overbuild roof framing.

10016 chief architect quick tip roof design. Replacing a roof can be expensive but if a roof contains only a small slope it s possible to raise the roof pitch of a house by building a roof over the old one. Nail 2 boards onto your walls as top plates. Over frame means just that you over frame another roof on top of another roof.

Use 8 penny nails to attach the first 2 in 4 in 5 1 cm 10 2 cm board to the wall studs. Figure 2 2 roof framing terms. When you nail in the second boards offset the seams of the upper and lower layers by at least 24 in 61 cm. Hip or valley rafter.

The option would to frame it true meaning the joining roofs would share a common connection ie. 1030 automatic framing exposed rafter tails sub fascia and sheathing. Use of rafters trusses and a truss base polyline are demonstrated. Re lay the shingles you removed from the existing roof.

Shingle the addition roof letting the new shingles fold through the valley center and onto the old roof deck by at least 1 ft. If the unit of rise in inches is 3 then the cut is the unit of rise and the unit of run 12 inches or 3 12. Box beam gable framing new gable overhang is framed in the form of a box beam hanging off of a new layer of roof plywood roof sheathing cantilevered over the top of the 3 layers of rigid insulation. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches.

Nail the first boards on top of your wall where you plan to build your roof. Bed the end of each shingle in a 2 in wide ribbon of roofing cement placed 4 in. Line length is the hyptenuse of the triangle whose. A third gable roof is joined to a main roof in an overbuild remodeling situation.

Use of rafters trusses and a truss base polyline are demonstrated.