Technical

The Wind Exposure Factor

The Slope Factor (i.e. Slippery Roof Factor)   1995 NBCC 4.1.7.1(5) Conditions under which you can assume the roof is “Slippery” a.      the roof surface is “slippery” (i.e. steel, glass) and, b.      snow and ice can slide completely off the roof  Conditions under which you cannot assume the roof is “Slippery” a.      the roof surface[…]

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Séparation des cloisons, prévention et solutions

Partition separation is cracking that develops between interior partition walls and ceiling or floor finishes, usually characterized by gaps opening in the winter and closing in the summer. To obtain and download further information in regards to this subject, Click here for more details.

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Responsabilités standard dans le processus de conception impliquant des fermes en bois reliées par des plaques métalliques

The TPIC standard defines the design responsibilities of the individuals and organizations involved in the preparation, submittal, review and approval of each Truss Design Drawing and Truss Placement Plan associated with the use of metal plate connected wood trusses. These guidelines are presented as industry standard practice. The guidelines are not intended to preclude[…]

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Connexion de ferme à ferme

The plies of girder trusses must be connected together adequately to provide proper distribution of loads between plies. Nailing size and pattern used in two or more plies girder are shown on engineering drawings and in TPIC Design Manual Tables( B.1, B.1.2, B.1.3, B.1.4 and  B.1.5).   Attaching together 4 or more plies girder[…]

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Fermes de toit qualifiées en vertu de la partie 9 du CNB

Roof trusses for building of 3 stories or less in building height , having an area not exceeding 600 m2 (6000 ft2),  having a clear span between two bearing wall not exceeding 40 ft and used for major occupancies classified as a) Group C, residential occupancies such as: (Apartments),  (Boarding houses), (Club,[…]

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Conditions du bois à la fabrication

The service condition factor for the plates used in the design of roof trusses shall be according to the table shown below. Seasoned moisture content = or < 15% unseasoned moisture content > 15% 1.0 0.80

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Charges mortes minimales

TC Dead Load BC Dead Load Occupancy Pitch < (2/12) Pitch = or > (2/12) With ceiling Without ceiling Residential (Part 9) * 3 7 N/A Commercial (Part 4) 10 5 7 5 Farm (Part 4) 10 4 7 4 Trusses having a T.C pitch less than 2/12 shall be[…]

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