When you open an expansion joint cover product page, the first three numbers you see are always the same: joint width, exposed surface, and movement capacity. Yet across the industry, different terms and units can make these basics confusing. This article cuts through the noise and explains what each of the three core parameters actually means for your selection, using MEISHUO's classic MSDG model as a practical reference. A straightforward read for anyone who needs to specify, buy, or simply understand architectural joint covers.

Even a correctly specified fire barrier can fail if installed improperly. This article identifies the most common installation mistakes — from skipping fire barriers where code requires them, to confusing fire sealants with mechanical barriers, to incorrect fastening and splicing — and explains how to avoid each one. Based on ASTM E119 and UL 2079 standards, with practical guidance for contractors and specifiers using MEISHUO MSFB fire barrier systems.