Composite Decking And The Building Code
Does It Have A Code Report?
So what about composite decking and the building code?
Did you know that while the number of composite decking
products has increased to almost one hundred, maybe 50% actually have a
Given the cost outlay for composite materials isn't it wise to
pick a product that has passed certain minimum standards? That being
said, there are situations where an ICC Evaluation Service Report is not required. These would be in locations where the buidling code does not apply.
This could be for a ground level deck or in a remote rural area where a permit is not required.
An ICC-ES Report
But the majority of uses will be subject to the building code. The ICC-ES report will state that the product met a whole list of tests that are set out in another document, AC 174 which is based on the ASTM standard D 7032.
That is a lot of documentation for the average guy but if you are so
inclined you can actually go to the ASTM web site and get a copy of the
testing that is set out.
It sets out a list of tests for the physical properties of the materials such as how far it can span, how well it holds fasteners, and a host of other qualities.
Or At Least Independent Engineering Based on ASTM Standards
Or an evaluation report from a reputable engineering testing firm
that has conducted the tests as set out in the ASTM standards would be
acceptable also. An ICC-ES is a review of the testing conducted by the
engineering firm and is much like the icing on the cake.
You can see if the product you are interested in has an ES report by going to either www.icc-es.org or www.10klakes.org.
What Will You Choose?
It really is important to stick with a large experienced manufacturer for this particular category of decking material.
Given the long and storied history of composite decking and the
building code and customer complaints, despite the major improvement in
recent years, don't cut corner or you may regret it.