Reinforcing Roof Joists For Mep Units

Its canam buildings business unit designs and fabricates steel joists and girders steel deck the hambro composite floor system econox.

Reinforcing roof joists for mep units.

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. Tie to roof rafters at peak tie to ceiling joists roof rafters to ceiling joists at the eaves. Use wood adhesive underneath the sheathing along the connecting joint with the roof trusses. The ceiling joists create a truss to begin with i m suggesting adding another member to the truss.

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. Open web steel joists and joist girders for revised loading conditions. The weld which is essential in distributing the load is also applied to the top and.

Nail the double headers to each other three 16 d common nails every foot. Direct nail the first header in to the cut joist and through the trimmer joists in to the header. The first step to reinforcing the roof is to add an x to the frame. Add the second header and direct nail this header through the trimmer joists.

Continue reading below our video of the day. To reinforce these members the best option is to add two angles one on either side of the affected member figure 4. Place the board vertically with the ends overlapping the ceiling rafter and the joist. For example last month we visited an existing tilt up concrete building with steel bar roof joists for blue spruce design and construction.

Cut a 2 by 4 inch board to match the distance you measured. Nail the board to the joist and rafter with two nails at each spot. Space them four inches apart along the edges and six inches apart in the middle of the plywood sheathing. Connect roof sheathing to the roof framing with ten penny weight common or eight penny weight ring shank nails.

This webinar parallels the steel joist institute publication technical digest no.