Approval Standard for Class 1 Exterior Wall Systems
Class Number 4881
2. Select Product
3. Design to Product Specs
FM Global Property Loss Prevention Data Sheet 1-28 is intended to provide general guidance to building designers regarding wind considerations for building components and cladding and their immediate supports. Inward and outward pressure for enclosed and partially enclosed buildings are determined by building designers and FM Approved exterior wall panels tested per Approval Standard 4881 for natural hazards exposure, where available, are used. Panels with appropriate ratings will have to be selected in accordance with guidelines in sections 3.1.6 and 3.1.7, using a safety factor of 2.0.
You may obtain the FM Global Property Loss Prevention Data Sheet 1-28 from www.fmglobaldatasheets.com. Registration is required.
If designed around our product, competitors’ product may not meet rating requirement and must be addressed in project specifications.
Additional Notes about FM 4881:
©2007-2013 FM Approvals LLC. All rights reserved.