August 25, 2010
Many of you who read this Blog are involved in the Metal Composite Material panel industry. One of the most frustrating elements of our industry is determining when the less expensive PE (Polyethylene) Core can be utilized and when the more expensive FR (Fire Resistant) Core must be utilized.
Often a wrong choice here can either cost you a job or can cost you money later on, dependent upon your choice.
With the assistance of Bill Yannetti of Mitsubishi Chemical America, Inc., manufacturers of Alpolic®, I have developed the following “Logic Tree” for the determination of core selection.
How can you determine what type of Core can be used on Type I, Type II, Type III and Type IV Construction for Metal Composite Material per Section 1407 of the International Building Code?
Here is the logic tree:
- You can use MCM anywhere on a building if it meets all the requirements of Sections 1407.1 thru 1407.10.
- However, PE Core cannot meet all of the requirements of Section 10.
- FR Core can meet all of the requirements, including those of Section 10.
- Section 1407.11.1 eliminates the requirements of Section 1407.10 for applications of MCM below 40 Feet above grade; therefore PE Core can be utilized.
- In Section 1407.11.2 applications of MCM below 50 Feet above Grade are allowed to eliminate the requirements of Section 1407.10; therefore PE Core can be
- There are specific limitations in Sections 1407.11.1 and 1407.11.2 regarding distance from other properties and size of application to which special attention should be paid.
- Generally, the “rule of thumb” is that PE Core can be utilized below 40 Feet above grade and FR must be used above 40 Feet above grade stands.
Tool of the Week, Day, etc.: Purchase a copy of the International Building Code – 2006 Edition on Amazon.
Ted S. Miller
Late and Beloved Co-Founder of MillerClapperton