Forensic Engineers and Consultants

Archive: Roofing

Uninvited House Guests: Mold and Other Fungal Growths

The wet, relatively warm weather recently experienced in the southeast has caused a high incidence of mold and other fungal growth complaints in homes and other structures.  Engineers at Warren Group are often called upon to investigate the cause(s) of these problems. Read More

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Roger_Davis_WEB
Warren engineers,   John Holecek and Aron Olson working with new fall protection equipment.

Not Falling for Your Job?

Periodically, Warren Engineers and Consultants are asked to perform inspections that require work at raised elevations. Typical jobs and tasks include climbing on commercial and residential roofs with steep pitches, working on scaffolding, climbing from one level to the next at a fire or industrial loss scene, riding in the buckets of lift equipment, and inspecting exterior structural elements such as windows and masonry.  Read More

Caved-in-roof

Flood Damage versus Water Damage: Water Damage Assessment – Part II

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In the continuation of the series on “Flood Damage versus Water Damage”, we will now focus on cause and effects of water damage to residential and building structures and components.  As discussed before, our goal in this blog series is to accurately and consistently inform the adjuster on what determines flood damage and water damage to homes, buildings and their components.  According to the Insurance Information Network of California (IINC) that will depend on a couple of things: 1) What type of insurance did the owner chose to purchase and 2) How did the water enter the residence or building? Read More

Typical-Flooding

Flood Damage versus Water Damage: Flood Damage Assessment – Part I

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Recently, I read an article from the Insurance Information Network of California (IINC) explaining the difference between “Flood Damage” and “Water Damage” that really hit home and I wanted to share with you again.  “Water, water everywhere, but not a drop should be there.  With dismay, you discover that your home is filled with damaging water.  Will your insurance policy cover this loss?”   Read More

Building Envelope Components

What is a Building Envelope?

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By definition, the building envelope (or building enclosure) is the physical separation between the interior conditioned areas and the exterior environment space of a building. The envelope serves as the outer covering (shell or skin) to help maintain the indoor environment together with the mechanical conditioning systems and to facilitate its climate control. The building envelope must be carefully designed with regard to site specific climate, ventilation, and energy consumption within the structure. The design is a specialized area of architectural and engineering practice that draws from all areas of building science and indoor climate control. Read More

steel-decking

Metal Decking Provides for Building Stability and Worker Safety

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It’s simple, right?!  Buildings being constructed must maintain a structural stability at all times during the steel erection process. That’s according to OSHA Federal Register Subpart R 1926. OSHA also reminds us that “Since structural collapse is second only to falls as a cause of fatalities in the construction industry, stability is essential to the successful erection of any steel structure, including single- story, multi-story, bridges, etc.” Let’s further examine what goes into the erection and installation practice for roof or floor metal decking as a safe working platform. Read More

An overhead view of a building that lost its roof due to the weight of several inches of snow.

Snow/Ice Accumulation Leads to a Roof Collapse

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During the next several months when temperatures start to fall below the freezing point and winter storms packing cold temperatures, heavy snowfall and ice build-ups bear down on various regions of the country, they can and do bring an assortment of unfavorable conditions that could and will affect your insured’s buildings, businesses, and personnel. Some of these regions have already experienced record-breaking snowfalls and bitter cold temperatures, which in turn have increased the danger of roof or partial roof collapses. Roofs that are properly designed and constructed to applicable codes and standards should be built to withstand loading from snow, drifting snow, water-laden snow and ice build-ups. But are they? Building codes and standards that depict the proper roof loads will vary across the U.S.  They will generally be based on local historical data, including the expected frequency and intensity of these winter storms in a particular region as shown and discussed in ASCE 7-10. Read More

A map showing a Public Street Right-of Way.

Stormwater Management Systems – Flood Control Structures

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An integral part of a stormwater management system is the design.  The design controls the quantity, quality, timing and distribution of storm runoff.  The storm drainage system is a network of access structures, ditches, channels and underground pipes that work together to direct and carry stormwater (rain and snow water) to ponds, lakes, streams and rivers and may consist of both public and private land and systems.  In order to keep these stormwater systems working properly as designed, the systems must be maintained on a routine schedule and on a continual basis.  The maintenance of these systems involves rigorous cleaning and removing of vegetation and debris. The systems include but are not limited to culverts and pipe outfalls, catch basin gratings and manholes, retention and detention water runoff control basins, channels and roadside ditches, and underground piping. Read More

Don't let your building become a disaster?

Major Causes of Wood Truss Failures

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It’s a fact! Many roof structures fail during the construction process while others have taken years for an incident to occur. Buildings with proper design and construction of bracing systems are essential in reducing and/or eliminating wooden roof truss failures.
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