Mauricio Roa Sep 30, 2015:

Buen día para todos,
Existen gran diversidad de materiales en la construcción y la mayoría de las veces los constructores se inclinan a escoger materiales económicos para aumentar su rentabilidad. Muchos de estos materiales estos son combustibles y algunos a su vez son inflamables.
Ahora en muchas partes del mundo existen regulaciones que no permiten el uso de materiales que propaguen fácilmente las llamas en caso de incendio.
Abajo les dejo un articulo donde se analiza el uso de estos materiales en la construcción y también les dejo un documento donde se clasifican los materiales usados en construcción y su comportamiento frente al fuego.

http://www.coacyle.com/UserFiles/files/CTE/D[1][1].28euroclasif.fuego.pdf
http://digital.csic.es/bitstream/10261/5842/1/Macia_IETCC.pd...

Ahora respecto a la traducción pienso que las dos respuestas son correctas, por esto estoy de acuerdo mi respuesta como con la de Neil.
Recordemos que este es un espacio para compartir ideas y crear conocimiento nuevo, es bueno que se den este tipo de discusiones pues estoy seguro de que nos enriquecen a todos

Neil Ashby Sep 30, 2015:

Combustible and noncombustible refer to the performance of a material (e.g., wood, stucco, steel). Fire-resistant can refer to a material or an assembly (e.g., all the component s in a wall – siding, insulation, and sheathing products). An example of a roof assembly is given in Figure 1. Ignition resistant can refer to a material or an assembly (e.g., when discussing ignition resistant construction). Definitions of these terms have been developed by a number of groups and are provided in Appendix A.


So from all that "inflamable" is most definitely not a category used to classify building materials - why would it be? Who'd want to make their house out of something inflammable?

Neil Ashby Sep 30, 2015:

Sometimes these terms refer to a material (e.g., when you replace your siding, select a fire-resistant material) and sometimes they refer to a type of construction (e.g., your home should incorporate ignition- resistant construction, or you should use ignition- resistant building techniques). Do you lump noncombustible, non-flammable, ignition resistant, and fire-resistant into the same “good” category or is one better than another? Should all combustible materials be lumped into a “bad” category, or is there a way to evaluate differences in anticipated performance between two combustible materials? The objective of this article is to describe how building codes and associated standards have defined and used these terms, and to provide ways to evaluate differences between combustible materials.

Definitions

Building codes and test standards have provided definitions for some terms commonly used to describe how a given material or assembly will perform in a fire. Terms that have been defined include:

Combustible
Noncombustible
Fire-resistant or Fire-resistance
Ignition-resistant

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Neil Ashby Sep 30, 2015:

Let's compare the definitions for "inflamible" and "combustible":
inflammable:
1. adj. Que se enciende con facilidad y desprende inmediatamente llamas.
conmbustible:
1. adj. Que puede arder.
2. adj. Que arde con facilidad.

There is a clear difference, an inflammable material will set alight with just a naked flame, (think gas, petrol, oil, etc.) ("enciende con facilidad y desprende inmediatamente llamas") whereas a combustible material requires higher temperatures for longer periods before it takes flame ("arder")

If you were a builder would you construct anything out of inflammable materials? I think not....

Fire Ratings for Construction Materials
Introduction

If you live in the wildland urban interface (WUI) you have probably heard or read about terms which describe materials that are recommended for use on your home to improve its chances of surviving a wildfire. These materials are described using terms like noncombustible, non-flammable, ignition resistant, Class A rated and fire-resistant – terms that describe the relative combustibility of materials.
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