Wall To Flat Roof Connection

Table 14 test configurations for roof to wall connection system tests 27 table 15 materials construction and fastening schedules for roof systems 28 table 16 summary of test results for roof to wall connection system tests 31 table 17 comparison of analytical and experimental results for roof to wall.

Wall to flat roof connection.

Consequently for gable end roofs the most important roof to wall connections are those within 6 to 8 feet of the outside corners. When the trusses are oriented parallel to the wall the simplest method of connecting a braced wall panel to the roof floor system above is to frame and sheath the wall up to the roof floor deck above and attach the roof floor sheathing to the double top plate of the braced wall panel with 6d common 0 113 x 2 0 nails at 6 on center as shown in figure 3. Yes even flat roof to wall intersections are not being properly done. Although the forces occur at the same placed on hip roofs the roof structure is such that it is the very corner truss or rafter called the jack that needs to well connected.

In older wood frame construction the connection of roof trusses or rafters to walls is 2 or 3 sixteen penny 16d nails driven at angles toe nailed through the rafter or truss into the top plate of the wall. It is also used when the wall below provides a ledge with sufficient bearing area for the roof to bear on directly. A direct bearing connection is used in instances where the wall below does not continue beyond the roof level i e no parapet. The flat roofing material must go up the wall a minimum of 12 or up the wall and over the top of the wall if the wall is less than 12 high.

If the roof wall connection isn t accessible from inside the attic and the inspection indicates that you have to add hardware you will need more than just a peephole. Some flat roofs have rafters from a ledger to supports at the end of the roof others have large outside beams with rafters set. The most common roof to wall intersections involve either a gable roof with its ridge running perpendicular to the wall or a shed roof that slopes downward away from the wall. The direct bearing connection is the simplest and most common connection in the home building industry.

Below are two photographs of roof wall step flashing completed and effective of a slate roof against a brick wall below left and in process with step flashing against a dormer sidewall before the dormer siding has been put in place below right.