Equipment and appliances supplied with fuel gases like natural gas, propane and butane are a common and convenient part of most of our lives. Such devices as gas grills and ranges, ovens, furnaces, space heaters and water heaters usually perform without incident. However, when they malfunction the potential for incidents such as fires and explosions, carbon monoxide (CO) poisoning and burn injuries may occur. These incidents may be due to design and manufacturing defects in the product, or improper installation or operation of the device.
Hurricane and Tropical Storm strength wind forces can wreak havoc on wood-framed residential structures. One of the primary hazards is the negative pressures which can develop on the exterior building envelope when the structure is subjected to the high encircling winds. These negative pressures act like the suction of a giant vacuum on a dwelling’s roof diaphragm, which produces enormous uplift forces throughout the entire structure. The leeward walls are also subjected to negative pressures, while the windward walls take the brunt of the positive wind pressures. The uplift on the roof is caused by what the author dubs “the airplane wing effect”. In other words, Read More