Fig. 9From: Improving durability of cross laminated timber (CLT) with borate treatmentHeat release rate curves for representative CLT samples bond with Polyurethane (PU) adhesive at different treatments. “Untreated” refers to the control CLT sample with no treatment, “2.7” and “4.5” refer to the dip treated CLT samples with B2O3 retention of 2.7 and 4.5 kg/m3, respectively. “Spray” refers to the commercial CLT sample sprayed over with borate solutionBack to article page