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This program provides information on the installation of long span trusses.
To download the full program, choose a link below.
As we wrap up last year and plan for 2017, it’s important to assess what SBCA has done in order to set goals for the future. I recently joined the SBCA officers for a few days of doing just that, meeting the SBCA staff in Madison, Wisconsin. We shared ideas and discussed the challenges we’re facing—it was most enlightening. I want to highlight a few of the issues we discussed with the hope of getting everybody’s perspective as to how we move forward.
TheTrussCo takes its workforce development efforts outside the box—and onto the airwaves.
Ric Thompson, a senior truss designer with Millard Lumber, is used to taking on a challenge. “I don’t do small jobs,” he said. “I only do monsters.” Still, some monsters are more monstrous than others. Ask him about BLUEBARN Theatre, and it’s clear that this project stands out.
Safety is often about statistics, inspections, reporting, paperwork…you get the picture. But Plum Building Systems in Osceola, Iowa has found a fun way to engage employees in the safety program: do-it-yourself safety posters.
Meet Jasper Diederiks, Sales Manager at Heartland Truss.
Eras of Innovation
As the industry heads into 2017 focused on solving workforce issues with greater manufacturing efficiency, it’s instructive to look back at the August 2006 issue of SBC Magazine, which featured an interview with Gene Woloveke, the inventive force behind the Idaco Machine & Equipment Company.
If you are interested in promoting your wall panel packages to builders who prefer to stick-frame walls in the field, here are some tools you can use to begin that discussion.
If you are interested in promoting your wall panel packages to framers who prefer to stick-frame walls in the field, here are some tools you can use to begin that discussion.
Some truss lumber repair nailing patterns call for 16d common nails. Most nail guns do not support 16d nails, but have an equivalent to a 12/10d nail. Is there a substitution guide or ESR report that could help us?
I recall seeing a design recommendation several years ago regarding installation of hanger nails above the neutral axis of the bottom chord of a plated girder truss. The intent was to avoid dumping large loads into the bottom chord, below the neutral axis. Can you tell me where I can find this information?
If you use hurricane clips to secure roof trusses from uplift, are you allowed to use fewer than the typical three nails in the bearing heel of the roof truss? I am concerned because we want to do the right fastening schedule, but three nails in addition to the hurricane clip splits the wood. What is the standard recommendation?
What is the correct method of attaching scissors trusses to the top plate? I read recently in a trade magazine that this type of truss should be toe-nailed on one end and attached with slotted clips on the other end. According to the article, this is to allow for movement of the truss. We require PE stamped spec sheets from the truss manufacturer to verify trusses meet wind and snow loads. These sheets give bracing requirements but never give recommended attachment requirements.
Are there any trusses that are supported strictly by the wood itself without any mechanical connections such as brackets?
I am a building inspector and have some questions regarding how to apply IBC 2012 2308.8.5 (IRC 2012 R802.8) (similar IBC 2015 2308.4.6 & IRC 2015 R802.8) to trusses, especially those with high heels:
Would you please inform me of the specified requirements of the size and the amount of nail attachments from the truss to the top plate?
The industry suggests notching the gable end truss to support the overhang. Is this wise? What about a structural gable, or a gable designed with drag loads, or one with only partial bearing? How safe is it for a framer working with a truss that has the top chord cut repeatedly?
I am remodeling a 16-year-old ranch style home. The roof consists of 4/12 26 ft. span trusses, 24 in. O.C., over 2x4 stud walls. What is the recommended means of affixing the top plate of new interior partitions to provide the lateral support needed for the partition? Also, I want to hang a soffit above and overhanging the new kitchen cabinets (recessed lighting placed within). What is the recommended means of attaching the soffit to the underside of the trusses so as not to interfere with the designed movement of the trusses under the variable live load experienced (snow load)?
In a hip roof application where jack trusses connect to a girder truss using pressure blocking (power blocking), what is the proper installation and the span that is acceptable before a hanger is required?
How much OSB can be stacked on a floor deck without damaging the trusses?
I have built a 30 ft. x 40 ft. pole barn with nine 30 ft. 2x4 7/12 pitch trusses that are 5 ft. O.C. I am planning to finish out the interior and will attach 7/16 x 4 x 8 OSB sheets to the trusses for my ceiling. Along with this, I will have to add several 2x4 nailers across the 30 ft. span between the trusses to attach the sheeting to. My question is: will these trusses have any problem supporting this ceiling? I am not planning on anything being placed in the section above the ceiling and there will be no walls or supports erected between the ceiling and the floor.
I am looking for information on point loading trusses. We manufacture mounting structures for solar panels. Typically, 10 to 15 sq. ft. of solar panel is supported by one standoff. Under extreme conditions – 50 lbs. per sq. ft. of wind load - we can transfer 500 to 750 lbs. of force onto one point of one truss. Are there any standards on this issue?
Can you explain drag loads and how to calculate a drag load pertaining to roof trusses?
Can I put a wood deck (1/2 in. plywood) on top of the bottom chord of a 26 foot span truss 24 inches on center?
I am a structural engineer designing pool cage structures that are typically attached to the house at the fascia board. Sometimes, the structure is attached where trusses are behind the fascia board and other times there is a framed gable end overhang. Do you know of any information concerning this additional load on the trusses or overhang under design wind loads? Is there a limiting distance on the amount of overhang? I know trusses are designed for certain uplift and the pool cage will add to this uplift at design load, but what about the gable end overhangs?
I am installing a 40-foot scissor truss that is designed to deflect about ½ inch. I am concerned that the deflection will cause an interior partition wall to pick up some load from the truss and transfer it to the floor system. Should I double up the I-joists under this partition to pick up the extra load?
Does SBCA have a state by state map for ground snow loads per the building code?