Technical
Valeurs de charge de neige au sol pour l'Ontario et le Québec
2014 Ground snow loads document
Read More »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[…]
Read More »Vérifier les charges de conception
When designing roof trusses or other structural elements, it is very important to determine the proper loads carried by the component.
Read More »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.
Read More »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[…]
Read More »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[…]
Read More »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,[…]
Read More »Protection contre la corrosion pour les plaques de connexion métalliques
Metal connector plates used with chemically treated lumber, or used in unusual environmental condition, or exposed to weather, additional corrosion resistant protection for the metal connector plates shall be installed. Please refer to TPIC Appendix E1 located at www.tpic.ca
Read More »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
Read More »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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