This project aims to support the construction of tall wood buildings by identifying encapsulation methods that provide adequate protection of mass timber elements; the intention is that these methods could potentially be applied to mass timber elements so that the overall assembly could achive a 2 h fire resistance rating.
The key objective of this study is to analyze full-scale fire-resistance tests conducted on structural composite lumber (SCL), namely laminated veneer lumber (LVL), parallel strand lumber (PSL) and laminated strand lumber (LSL)...
The Fire Test Laboratory of NGC Testing Services (NGCTS) conducted testing for American Wood Council (AWC) on a load-bearing, Cross-Laminated Timber (CLT) and gypsum board wall assembly to evaluate its fire resistance properties when exposed to fire acco...
A series of 3 cross-laminated timber (CLT) fire-resistance tests were conducted in accordance with ULC S101 standard as required in the National Building Code of Canada. The first two tests were 3-ply wall assemblies which were 105 mm thick, one unprotected and the other protected with an intumescent coating, FLAMEBLOC® GS 200, on the exposed surface...
This report describes a full-scale exterior wall fire test conducted on December 16, 2014 on a Nordic cross-laminated timber (CLT) wall system. The test was conducted in accordance with CAN/ULC-S134-13, Standard Method of Fire Test of Exterior Wall Assemblies. The test was conducted using the exterior wall fire test facility located in the Burn Hall of the NRC Fire Laboratory, Mississippi Mills, Ontario. The CLT wall system was assembled to represent a continuous solid wood wall covered by a water barrier membrane and insulation. The pilot burners were lit prior to the commencement of the test. Gas flow to the burners was manually adjusted to follow the prescribed heat input required by the standard.
The fire resistance tests and the demonstration fire were performed to support the approval and construction of a tall wood building in Quebec City; the building is planned to be 13 storeys which includes a 12-storey wood structure above a 1-storey concrete podium.
The objective of the two tests described in this report was to evaluate the performance of cross-laminated timber (CLT) and nail laminated timber (NLT) construction protected with two layers of %-in. (16-mm) type X gypsum board when exposed to the therma...
FPInnovations is involved in a large research project regarding CLT construction. One objective
of this research is the creation of a design methodology for calculating the fire-resistance of CLT
assemblies/construction. This methodology will foster the design of fire-safe buildings of wood
or hybrid construction. In order to establish such calculation methods, a series of experimental
tests has been undertaken. A total of eight full-scale CLT fire resistance tests have been
conducted at the NRC fire laboratory where the panels were subject to the standard ULC S101
 fire exposure. The series consisted of three wall and five floor tests. Each test was unique
using panels with a different number of plies and varying thicknesses. Some of the assemblies
were protected using CGC Sheetrock® FireCode® Core Type X gypsum board while others
were left unprotected.