Attic Trusses And Rafter Ties

You don t prefer finished attic space.

Attic trusses and rafter ties. Collar ties are necessary to prevent separation of the roof at the ridge due to wind uplift. A rafter tie forms the bottom chord of a simple triangular roof truss. Your home site is easily accessed. Rafters are a better choice for specialty projects.

Measure for each new collar tie and then install it by nailing it to the roof rafters. When ceiling joists run perpendicular to the rafters inspectors may find rafter ties installed above ceiling joists as framing members every 4 feet running above the ceiling joists connecting opposing rafters. Rafter ties resist the forces caused by gravity loads that would otherwise cause the roof to pancake and push out the sidewalls. Simpson strong tie 6 in 18 gauge triple zinc steel rafter tie.

Simpson strong tie 5 2 7 in 18 gauge triple zinc steel rafter tie. In this how it works article managing editor debra judge silber explains the role of collar and rafter ties in the framing of a roof. Collar ties rafter ties tension beams structural ridge beams. In a nutshell trusses are right for most projects.

Scissor trusses will provide enough steepness for any vaulted ceilings in the plan consult your architect to determine that. I noticed that the rafter ties had pulled away from the rafters they were nailed to. Installation is the same for trusses as for rafters see above. The rafter ties were clearly pulling away from their rafters because of the tension forces they were experiencing when under snow load.

I noticed that steel cables has been hidden behind the rafter ties to try to reinforce them but the screws attaching the cables to the rafters were also pulling out. Nail one end of the tie into the rafter with 3 inch nails. With the first collar tie in place you will follow the same procedure. Hurricane ties offer a strong connection that will provide you with the strongest resistance against uplift.

As a boy i remember seeing a dilapidated farm building that had a set of rafter ties in its attic. Secure the opposite side in the same manner. Simpson strong tie category roof truss and rafter connectors ties and straps for cold formed steel construction. For pricing and availability.

For pricing and availability. Click to add item 26 spreadweb residential roof truss 5 12 pitch 87 to the compare list compare click to add item 26 spreadweb residential roof truss 5 12 pitch 87 to the compare list add to list click to add item 26 spreadweb residential roof truss 5 12 pitch 87 to your list. Some of these can support the roof and prevent ridge sagging and wall spreading. This article describes and illustrates the different types of support that prevents roof sagging and wall bulging at buildings including definitions of collar ties rafter ties and structural ridge beams.

Collar ties may take up space in the attic of your home but they are there for a reason.