New research led by an MIT graduate student at the school’s Concrete Sustainability Hub suggests that the value of buildings constructed to resist wind damage in hurricanes may be significantly underestimated.
The research found that the failure of wind loss models to account for neighborhood texture—the density and configuration of surrounding buildings—may result in a more than 80% undervaluation of structures built with stronger construction methods in Florida. Hazus, a loss estimation tool used by the Federal Emergency Management Agency (FEMA), estimates physical and economic damage to buildings due to wind and the impact of windborne debris.
The tool assumes that all buildings in a neighborhood experience the same wind loading, but buildings come in many different shapes and sizes can be arranged in numerous ways. Their configuration and positioning can amplify or reduce the wind load on buildings within the neighborhood.
In a model developed by MIT researchers, the texture-related loss implications were found to be higher in census tracts along the coast. These areas tend to be more dense and ordered, leading to higher wind load amplifications. Loss implications are particularly high for single-family homes, which are more susceptible to damage and have a higher replacement cost per housing unit.
Related Stories
Codes and Standards | May 30, 2018
Silicon Valley cities considering taxes aimed at large employers
The aim is to offset the impact on housing costs and homelessness by tech companies.
Codes and Standards | May 30, 2018
OSHA proposes new crane operator safety rule
Would provide long-term clarity on certification requirements.
Codes and Standards | May 29, 2018
Government support helping to drive demand for green building materials
Market projects to grow 12.5% annually between 2013 and 2019.
Codes and Standards | May 24, 2018
‘Amazon tax’ could slow Seattle’s construction boom
City imposes employer head count tax to fund affordable housing.
Codes and Standards | May 23, 2018
AAMA releases 2017/2018 fenestration market studies
Offers forecasts of industry trends.
Codes and Standards | May 22, 2018
Registration open for 2018 National Energy Codes Conference
U.S. Department of Energy event to be held July 15th-17th in Austin.
Codes and Standards | May 21, 2018
New standard tests quietness of floors
ASTM International method will help manufacturers test their flooring materials.
Codes and Standards | May 17, 2018
California will require solar panels on most new homes
Projected to add $10,000 to cost of new homes.
Codes and Standards | May 16, 2018
New resources offer tips on off-site construction
NIBS documents address using pre-cast concrete, and commercial and legal considerations of modular construction.
Codes and Standards | May 15, 2018
Blast testing of loaded mass timber structures yields positive results
Four tests covered a spectrum of blast loads.