Does anyone know where a composite sheet material containing kevlar used for for ballistic resistance would be specified?
It will be used within wall construction to extend coverage offered by adjacent ballistic-resistant glazing.
Thank you in advance.
What do know, someone already asked the question not too long ago.
I’ve used 13 4600 Ballistics Resistant Assemblies and put everything in there except for glazing, because that actually has its own number - 08 8856.
Steve-
If it is an add within a gypsum board assembly, I’ve just included it within the board spec. We’ve done the same for add-ons like expanded metal mesh for break-in resistance, etc. or in general, anything buried in the gypsum board assembly. Anything on the outside usually gets its own section.
Remember, “Kevlar” is a trademarked brand-name for a DuPont product.
http://en.wikipedia.org/wiki/Kevlar
Once upon a time, I ran in circles for days because an Owner’s rep was under the impression that “Kevlar” simply meant “bullet-resistant”.
Are you looking for a fabric (flexible) product or a board (rigid) product?
There are rigid products out there with Kevlar laminated into them, but there are also bullet-resistant board products made of (much) less-expensive materials (such as woven and laminated glass fiber).
Good luck!
I’m inclined to take George’s advice since the material will be installed in wall construction, and there is not much of it.
As yet, the material is somewhat undefined. My question stems from developing a preliminary table of contents for a new project. Scott, I was indeed aware that “Kevlar” (along with “Mylar”) is a DuPont product.
Lynn, is 13 46 00 - Ballistics Resistant Assemblies a newly approved section by CSI? I don’t recall seeing it on MasterFormat.com, but I may have missed it.
Thanks to all who posted.
13-4600 is a section developed by 4specs to better classify Ballistics Resistant Assemblies as compared to individual products such as glass, doors and panels. Frequently the “manufacturers” are a better seen as a manufacturing sub-contractor responsible for the products, assembly, and installation.
There are many sections scattered around in 4specs intended to help separate the products and manufacturers better than MF2004 has done.
MF2004 has a primary focus on work results, not products.
Colin’s written it all. It made sense to me to put the products together in one place where they would be found. The Table of Contents is my friend.
While I do understand Colin’s line of reasoning and why he has chosen to present the data this way, there are some very good strategic reasons for following the “work results” orientation of MasterFormat 2004. Remember that MasterFormat 2004 is a one of a series of tables in OmniClass which includes a separate table on materials. Steel pipe and stone are two examples of “materials” which are then specified in several different ways depending on “work results.”
Steel pipe may be used for structural elements or handrails (different sections in Div. 05), but it may also be used for fire supression piping (Div. 21), plumbing piping (Div. 22), HVAC piping (Div. 23), electrical conduit (Div. 26), or landscape irrigation piping (Div. 32). Stone may be used as exterior building facing (usually specified in Div. 04), tiles or interior “slab” stone work (Div. 09), toilet partitions (Div. 10), countertops (Div. 12), or paving (Div. 32). In either case the material itself will be exactly the same, it is the “work result” that varies and determines its place in MasterFormat.
Colin’s organizational structure recognizes the void that exists because of the lack of the “materials table” in OmniClass and because most of us (including myself) are used to using CSI divisions and sections to classify materials as well as work results. Colin is very upfront about this. We all may be a lot older before a useful OmniClass materials table is published, becomes common knowledge, and is accepted by the architectural community; I will continue to find 4Specs a useful tool, but attempt to organized my specs as work results.
As I noted in a previous posting, I think there are diffencies in MasterFormat in terms of recognizing increasingly common assemblies that have specific performance requirements (ballistics, wind loading, blast resistance, missile impact, etc.), but I am living with it.