Business Logistics

Installation Guidelines

Question: 

Are there any associations that have recommendations for the installation of wood trusses?

Drywall Cracking Under Scissors Trusses

Question: 

We keep having problems with dry wall joints raising on the vaulted bottom chords in the track homes that we are building. The joints run from front to back of the house and the trusses bear on the side walls. The trusses are mostly 2-point bearing (a few in the front and back of the building are tri-bearing). The trusses span 40 ft. and have a 4/12 pitch with a tile roof. Is it common to have dry wall problems as the trusses deflect? How long should the roof be loaded before hanging sheetrock? Should the heel of the truss be allowed to slide out on the top plate?

Long Term Deflection

Question: 

Has there been any research or studies on long-term deflection of metal plate connected wood trusses? How much deflection is allowed?

Post Fire Retardant Treatment

Question: 

Is a Class A fire rating (provided by our liquid spray-on fire retardant) acceptable in certain situations?

Allowable Deflection In Floor Trusses

Question: 

Is there a chart available on the allowable amount of deflection on floor trusses?

Truss Technician Requirements Definition

Question: 

What are the qualifications (if any) required to be considered a truss technician?

Transforming Attic Into Living Space

Question: 

We are looking into developing the attic space above our garage into a media room. The garage is attached to the home and we would enter this area from the living room. We recently read if you have a truss system that in order to develop the attic, one would have to replace the entire roof with conventional construction. My question is: can we safely develop this trussed area above our garage?

Comparison Of Stick And Component Framing

Question: 

Does SBCA produce any products detailing how to market and sell roof and floor trusses to builders for whom stick framing has been the standard way of building? Products that detail the cost savings when compared to traditional stick framing?

Design Responsibilities

Question: 

My company supplied roof trusses for a hotel project. The building inspector shut the project down because the trusses were not designed to account for additional snowdrift loading. The construction plans did not contain any snowdrift loading information. The architect is claiming it is our responsibility to determine drift loading, therefore we must fix the problem. Do you have any documentation to help us dispute the architect’s claim?

Truss Uplift

Question: 

What is truss uplift?