Reinforcing Roof Joists For Mep Units

Use wood adhesive underneath the sheathing along the connecting joint with the roof trusses.

Reinforcing roof joists for mep units.

This webinar parallels the steel joist institute publication technical digest no. Place the board vertically with the ends overlapping the ceiling rafter and the joist. The first step to reinforcing the roof is to add an x to the frame. Simply take 2 diagonal pieces and place them between the trusses.

It is usually best to locate a new unit away from existing units and near an existing bearing wall or girder limiting the amount of new load on the existing joists. Use 16 d common nails and make sure the tops of the joists are flush. The ceiling joists create a truss to begin with i m suggesting adding another member to the truss. Add the second header and direct nail this header through the trimmer joists.

For example last month we visited an existing tilt up concrete building with steel bar roof joists for blue spruce design and construction. Part 2 of this series will discuss and demonstrate methods to modify open web steel joists and joist girders to increase the load carrying capacity or repair damage. Continue reading below our video of the day. Space them four inches apart along the edges and six inches apart in the middle of the plywood sheathing.

Nail the board to the joist and rafter with two nails at each spot. The weld which is essential in distributing the load is also applied to the top and. This scheme is predicated on achieving serious load carrying connections well thought out and installed a 35 or l clips should to it at all joints. Nail the double headers to each other three 16 d common nails every foot.

Open web steel joists and joist girders for revised loading conditions. Its canam buildings business unit designs and fabricates steel joists and girders steel deck the hambro composite floor system econox. To reinforce these members the best option is to add two angles one on either side of the affected member figure 4. If you don t have an a frame roof you can run parallel boards between the studs to further offer support and to strengthen the frame.

Direct nail the first header in to the cut joist and through the trimmer joists in to the header.