Related sections in the International Building Code (IBC) were reviewed regarding use of wood components in non-combustible buildings, and light-frame wood buildings or heavy timber buildings greater than 4-storeys in height.
The highlights of this review are:
a) Fire-retardant-treated (FRT) wood can be used in partitions when the required fire-resistance rating is not more than 2 hours. This includes all types and occupancy groups of Types I and II construction;
b) FRT wood can be used in non-bearing exterior walls in Type I, II, III and IV construction;
c) Wood components can be used in interior walls for Type III and IV construction;
d) Wood components can be used in both interior and exterior walls for Type V construction.
When a sprinkler system is installed according to NFPA 13 , it is possible to build a light-frame wood building or heavy timber building over 4-storeys according to the following provisions:
a) Type IIIA 6-storey light-frame wood buildings using FRT wood for exterior walls for Occupancy group B (Business), H-4, and 5-storey light-frame wood buildings for Occupancy group F-2, H-3, I-1(Institutional), R (Residential), S-2;
b) Type IIIB 5-storey light-frame wood buildings using FRT wood for exterior walls for Occupancy group R;
c) Type IV (HT) 6-storeys timber buildings for Occupancy group B, F-2, H-4 and S-2;
d) Type IV (HT) 5-storeys timber buildings for Occupancy group F-1, H-3, I-1, R, S-1 and U.
The Softwood Lumber Board, Arup, MyTiCon and DR Johnson have partnered to complete three full-scale fire tests for glulam beam to column connectors. The fire tests have been completed for “off-the-shelf” connectors for glulam beams, testing the conne...
This report documents the fire testing conducted by QAI Laboratories Ltd. for FPInnovations of a bare 5-ply CLT wall assembly containing a pair of steel doors and frame with a single copper service penetration. Testing was performed in accordance with ULC S104 and ULC S101. The assemblies were evaluated for a 2-hour fire resistance rating on February 10, 2017.
This report documents the fire testing conducted by QAI Laboratories Ltd. for FPInnovations of a 3-ply CLT and with 2 layers of 16 mm (5/8 inch) Type X gypsum board on each face, wall assembly contained steel stiffened double egress door assembly and a 102 mm (4 inch) single copper service penetration. See assembly description for further assembly details. Testing was performed in accordance with ULC S104 and ULC S101. The assemblies were evaluated for a 2- hour fire resistance rating on March 2, 2017.