TrusSteel - Cold Formed Steel Trusses

1 2 3 4 5 6 7 8 7.02 Material Receiving Inspect all CFS materials immediately upon arrival. Report all damaged or missing material immediately to vendor and note all damage on carrier's shipping documents. Material Handling Finished CFS trusses are usually banded with steel strapping in conveniently sized bundles. The strapping helps maintain truss alignment and the bundle strength minimizes damage during delivery and storage. WARNING: Exercise care when removing strapping to prevent injury. Throughout all phases of construction, care must be taken to avoid excessive lateral bending of the trusses which can cause joint and member damage. If possible, CFS trusses should be unloaded on relatively smooth ground. They should not be unloaded on rough terrain that would cause undue lateral strain resulting in distortion of the truss joints. Rough terrain can also cause damage to overhangs, soffit returns and other parts of the truss. Always lift long pieces of material from more than one lift point to avoid crimping. Take care when banding; do not crimp or bend material. Do not store other materials on top of CFS materials. Material Storage Formed CFS components made of galvanized steel material shall be stored in a low moisture environment. Under no circumstances should stored material be allowed to become wet. When stored in bundles, materials shall be stored at an incline to promote the drainage of any moisture and to avoid moisture build-up in and on the parts. Storage area shall have good ventilation. Areas that have poor ventilation, and that have the potential for trapping moist air in rising temperatures, can create a 'hot house' effect that may cause condensation between the layers of rolled or bundled material. This trapped condensation can have the same effect on stored material as exposing it to direct moisture. For long-term storage, inspect bundled materials regularly to assure that moisture has not penetrated the bundle. Storage environments shall be ventilated to avoid temperature differentials in excess of 20ºF between the stored material and the ambient temperature of the storage. Environments that allow temperature differentials in excess of 20ºF can promote moisture condensation on materials. Cold steel materials shall be allowed to warm properly before storage. The rapid warming of incoming materials (when moved from a cool environment to a warm environment) can create condensation. If incoming galvanized steel feels cold to the touch, allow it to warm slowly in a cool indoor area away from drafts. When the steel has warmed it may be transferred to a proper storage area. If trusses are stored in the vertical position, they should be staked on both sides of the bundle to prevent toppling and personal injury. These storage instructions must be followed to avoid chalking on any galvanized materials (truss, stud, track, etc.). Chalking is created by the invasion of moisture between two zinc coated surfaces that are not allowed to dry in an environment having adequate air flow. The chalking is created through a chemical reaction between the two surfaces when they are stored in an oxygen deprived atmosphere. TrusSteel trusses are often light enough for two men to unstack and stage. Horizontal storage of trusses. Vertical storage using a rack or stand. Always stake trusses to prevent toppling. HANDLING & STORAGE ENGINEERED BY ALPINE I N S TA L L AT I O N / B R AC I N G

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