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[Eleanora Parrot]

The Wildland Fire Assessment System (WFAS) is an integrated, web-based resource to support fire management decisions. It has an extensive nationwide user base of federal, state and local land managers. The system provides multi-temporal and multi-spatial views of fire weather and fire potential, including fuel moistures and fire danger classes from the US National Fire Danger Rating System (NFDRS), Keetch-Byram and Palmer drought indices, lower atmospheric stability and satellite-derived vegetation conditions. It also provides fire potential forecasts from 24 hours to 30 days. Point data for many products are provided in addition to spatial data for more localized applications. WFAS is under revision to refine existing products and to increase the utility of more spatial data products such as gridded surface meteorology and MODIS satellite data. Many of these new products will incorporate internet mapping services to allow users to resolve spatial products to a region of interest. These revisions will also provide higher resolution data for regional and local applications with higher spatial and temporal resolution. Planned changes will support decisions made at national, regional and local levels.

The ASTM E-84 tests characteristics of flame and smoke of a material. The ASTM E-119 measures the fire resistance of a structure. With the right covering, your project can exceed the requirements for both tests.

The ASTM E-84 is based on two main metrics of burning behavior. These metrics are flame spread and smoke development. The flame spread index is a measure of how quickly the flame travels after the fire is initiated. The smoke development rating tells you how much smoke is produced over a period of time.

Flame spread index and smoke development are tested in the Steiner Tunnel, a 24 x 24-inch steel box. A sample of the material is exposed to two burners. Then, the sample is monitored through a window. The flame spread and smoke development are analyzed with specialized software.

Class A (or Class 1) is the best fire rating. The flame spread for a Class A fire rating is 25 or lower, and the smoke development does not exceed a maximum of 450. Many facilities require a Class A rating for building materials. For example, hospitals typically require Class A ratings.

To perform the ASTM E-119 test, a sample of a material is placed in a furnace. The material is left in the furnace for a pre-specified amount of time and temperature. At the end of the test, the material is checked for its structural integrity.

Different materials have higher and lower flame spread rating. The chart below compiles information from various sources and shows flame-spread ratings for some common building materials according to the Louisiana Fire Marshal website:

A 1-hour fire rated wall is able to remain intact after one hour of being exposed to fire. For example, the fire would not penetrate the structure after an hour. If your project keeps its integrity for at least one hour of burning, it would receive a 1-hour rating. Most facilities require a minimum of a 1-hour fire rating.

Some walls are built with materials that come guaranteed with a 1-hour fire rating. For example, the Intertek Design LPB/WPPS-60-01 wall is constructed with gypsum. It is designed to receive 1-hour fire ratings for both sides of the assembly.

Different classifications refer to different levels of flammability and smoke production. Understanding the fire-resistance rating of materials gives you the knowledge you need to make effective choices.

Flame spread index is a numerical value that is typically obtained by examining how the material responds during a ten-minute tunnel test. The flame spread index value is expressed as an arbitrary numerical value, where the asbestos-cement board has a rating of zero, and red oak has a value of one hundred.

Each of the fire rating classifications has a flame spread index range assigned to it. Having a basic understanding of the fire-resistance rating of structural elements is invaluable in protecting property against fire. These are the classes recognized by the National Fire Protection Association Life Safety Code, NFPA No. 101.

Materials that fall into Class A or Class 1 include things like brick, gypsum wallboard, and fiber cement exterior materials. These materials do not burn well and are very unlikely to contribute fuel to a fire.

A whole wood material would be wood planks that are in the same form as they were when they were cut from the tree. They burn more quickly than Class A materials and more slowly than Class C materials.

A Class C or Class 3 fire rating has a flame spread rating between 76 and 200. This rating incorporates building materials like plywood, fiberboard, and hardboard siding panels. It also includes any of the faster burning whole woods.

Ratings between 201 and 500 would be considered a Class D material, and Class E materials include anything with a flame spread rating above 500. Classes D and E are not considered effective against any form of fire exposure.

Knowing how your building materials will hold up against fire is a great first step toward effective protection. Choosing materials with higher fire rating classifications may be the barrier that saves your home from a fire.

[email protected] About UsFire retardants, Inc. specializes in fire retardant paint, varnish, coatings and solutions for fabric, paper, wood, metal, and many other surfaces. Fire stop caulking, sealants and smoke and odor elimination products.

I am looking for the 'General Ratings' drop down box in wall selection settings under classification and properties for the fire rating. However, I cannot see this. Does anyone know how I can see these properties for walls and doors?

Your wall is classificated as Wall only inside "Archicad classification - 20" clasificator. This means that if you want to see "General Ratings" dropdown you need to go to "Property Manager" and make sure "Fire resistance" Property is turned on in all or desired clasificators.

It looks like you are working on a project file which was build in Archicad 20 and/or 22, as the classification states. The second one, which you want, is the Archicad classification V2, which was, I believe, introduced in version 23. You can take a look at this site, which has some suggestions about migrating classifications.

Anyhow, you can edit, add or delete classifications entries by yourself in Property Manager. If you plan to exchange information via IFC make sure that each property is mapped to the correct IFC entry.

I've setup the Fire resistance rating of the specific door in the Door settings dialogue and in the properties, as shown below, through MVO but nothing shows up on the actual floor plan other than FR (fire resistance) as if the Measured Value = 0.

It is possible to modify that list of available values that drop down from the place I snipped above, but you would have to modify its GDL script. The other option is a separate label, which is maybe not the best. The one you already have set up will show on schedules, just not on plan.

The problem is that your door value is referencing a different value than the one you set-up. The one you have "rezistenta la foc" is not the Fire Resistance rating that the door references, that's a custom property made by the ROtemplate. The one you're looking for, where you can add the door FR that will show up on plan can be found on the last page of the door setting.

Oh sweet Jesus, thanks. Is it possible to link the Fire Rating to my specific parameter, or change the parameters that come by default in Archicad for the ratings, in accordance to local legislation and terminology?

I was afraid you're going to say that. I find it quite restrictive (i.e. dumb) to not be able to modify the parameters unless GDL scripting is involved, and at the same time have custom parameters show up in schedules but not in floor plans. Also, modifying the GDL script and saving a custom library part in a generic / native AC object only for the fire rating is non practical. Thanks for the help!

Indeed, not their best design decision. If you use a template, do it once, then it's as good as solved for the rest of your projects. Still, not everyone is comfortable with looking under the hood of programs, and I'm surprised as well that they haven't considered (as an international company) that other countries have different naming conventions, but I digress.

A fire-resistance rating typically means the duration for which a passive fire protection system can withstand a standard fire resistance test. This can be quantified simply as a measure of time, or it may entail other criteria, involving evidence of functionality or fitness for purpose.

Outdoor spray fireproofing methods that must be qualified to the hydrocarbon curve may be required to pass a host of environmental tests before any burn takes place, to minimize the likelihood of ordinary operational environments rendering a vital system component useless before it ever encounters a fire.

This rating is the requirement in data safes and vault structures for protecting digital information on magnetic media or hard drives. Temperatures inside the protected chamber must be held below 125 F (52 C) for the time period specified, such as Class 125-2 Hour, with temperatures up to 2,000 F (1,090 C) outside the vault. The temperature reading is taken on the inside surfaces of the protective structure. Maintaining the temperature below 125 F is critical because data is lost above that temperature threshold, even if the media or hard drives appear to be intact.

This is the rating required to protect microfilm, microfiche, and other film-based information storage media. Above 150 F (65.5 C) film is distorted by the heat and information is lost. A Class 150-2 Hour vault must keep the temperature below 150 F. for at least two hours, with temperatures up to 2,000 F. (1,093.3 C) outside the vault.

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