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Tag Archives: fire safety
Yes … New Homes Burn Faster
Does it come as a surprise to anyone that many of those who would financially gain from re-building the home are spending heavily to lobby their state legislatures to fight laws that would prevent it from burning down?
If you are living in a recently built home or are contemplating buying one, you need to read this (click, here).
New homes are being constructed with lightweight and flammable material, and many that I have personally inspected include building flaws that increase the risk of fire.
One common example is the loose electrical wiring buried under the blown fiberglass insulation in brand new homes that is more of “the rule” than an exception to the rule in many unregulated parts of Missouri. Another common flaw is the absence of arc fault circuit interrupters.
As stated in the linked article, above …
Designed to carry a greater load with less material, the prefabricated components are made from real or man-made wood fragments held together by glue or metal fasteners. The materials are commonly used to frame roofs and flooring. Assembled in factories and shipped to construction sites, these building components significantly cut down on construction time and cost. Builders also say the materials are better for the environment, because they use less wood, reducing deforestation.
But both real-life and test fires have shown that structures with lightweight construction burn much faster and collapse sooner than traditional solid-wood frame construction. That, firefighters say, makes fires harder to fight and shortens the time occupants have to escape a blaze.
“Not only is that second floor going to come down on your head in a very short period of time, the roof is going to collapse,” said Danny Hunt, fire marshal in Nashville, Tennessee, where he said roughly 90 percent of new homes use lightweight construction.
Radiant Barriers – Good for Energy Savings/Bad for Fire Safety
They can cool the attic … but at what risk to the structure and the occupants? Could radiant barriers represent a potential for harm?
Read the McDowell Owens Engineering Inc. white paper as to how “The physical and electrical properties of these materials are such that they introduce new and very serious dangers of ignition and fire.”
The link that I had used for years to the original McDowell Owens Engineering Inc. report is no longer operating; however, you can find a pdf copy of the report by clicking here.
The summary of the McDowell Owens Engineering study is, as follows:
“1. Standard installation methods for roof sheathing with integrated radiant barrier are such that the end result is an overall environment where all of the radiant barrier material and virtually everything metal on and around the roof are electrically connected.
“2. In most cases, something in that environment is connected to earth ground. If anything in the roof environment becomes electrically energized (by lightning or any other common source) there is a high probability the current will pass through the barrier material at some point on the way to earth ground.
“3. The physical and electrical properties of reflective radiant barrier materials which we tested are such that the material in a structure provides two new and unique hazards relative to fire causation.
(a) When energized by an electrical current the material readily generates temperatures sufficient to ignite MANY materials.
(b) The barrier material itself readily serves as the first ignited material.”
If you are considering radiant barriers as an energy efficiency upgrade … if you reside in a home with radiant barriers that are installed … if you are considering a recommendation by an energy auditor or other entity to install them … read this report, first.