Structural Drying >> After Roof Collapse

The standard provides flood, wind, and seismic resistant installation procedures. It also calls for elevating A Zone manufactured homes with the bottom of the main chassis frame beam at or above the BFE, not with the top of the floor at the BFE. How High Above the BFE Should a Building be After Roof Collapse Elevated? 

Ultimately, the building elevation will depend on several factors, all of which must be considered before a final determination is made: The accuracy of the BFE shown on the FIRM: If the BFE is suspect, After Roof Collapse it is probably best to elevate several feet above the BFE; if the BFE is deemed accurate, it may only be necessary to elevate a couple of feet above the BFE. 

Availability of Advisory Base Flood Elevations (ABFEs): ABFEs have been produced for coastal areas following Hurricanes Ivan, Katrina, and Rita. These elevations are intended to be interim recommendations until new FISs can be completed. Some After Roof Collapse communities have adopted ABFEs, but not all (see the Hurricane Katrina Recovery Advisory posted at http://www.fema.gov/pdf/rebuild/mat/reconst_guidance.pdf). 

Future conditions: Since the FIRM reflects conditions at the time of the FIS, some owners or jurisdictions may wish to consider future conditions (such as sea level rise, wetland loss, shoreline erosion, increased storm frequency/intensity, After Roof Collapse and levee settlement/failure) when they decide how high to elevate. 

State or local requirements: The state or local jurisdiction may require a minimum free board through its floodplain management regulations. Building code requirements: The International Building Code (IBC) requires buildings be designed After Roof Collapse and constructed in accordance with ASCE 24 (Standard for Flood Resistant Design and Construction). 

ASCE 24 requires between 0 and 2 feet of freeboard, depending on the building importance After Roof Collapse and the edition of ASCE 24 referenced. [footnote 3]Footnote 3. The 1998 edition of ASCE 24 is referenced by the 2003 edition of the IBC, and requires between 0 and 1 feet of freeboard. The 2005 edition of ASCE 24 is referenced by the 2006 edition of the IBC, and requires between 0 and 2 feet of freeboard. [end footnote] 

Critical and essential facilities: Given the importance of these facilities, some of which must remain operational during a hurricane, they should be elevated higher than most commercial and residential buildings. Building owner tolerance for damage, After Roof Collapse displacement, and downtime: Some building owners may wish to avoid building damage and disruption, and may choose to elevate far above the BFE (see Figures 12 and 13).Figure 12 caption. 

Ocean Springs, Mississippi, After Roof Collapse home elevated approximately 14 feet above the BFE. Katrina flooding was 4 feet below the elevated floor (photo taken after the storm surge had dropped several feet. Courtesy of Ocean Springs, Mississippi, fire chief). [end caption]Figure 13 caption. Pass Christian, Mississippi, home elevated on reinforced concrete columns in Zone A, with the bottom of the floor beam elevated approximately 9 feet above the BFE. 

Although Katrina flooding was approximately 4 feet above the top of the lowest elevated floor, After Roof Collapse the home sustained no structural damage. All other buildings in the vicinity were destroyed. [end caption]The Hurricane Katrina Summary Report on Building Performance (FEMA 548) recommends that critical and essential facilities be elevated to the 500-year flood elevation or based on the requirements of ASCE 24-05, whichever is higher. 

This recommendation may also be appropriate for residential and commercial structures, After Roof Collapse as well.The 500-year elevation can be approximated as 1.5 times the 500-year stillwater depth (500-year stillwater elevation minus the ground elevation) added to the ground elevation. This procedure is similar to the procedure used to calculate ABFEs, but with a different stillwater level.

[Begin text box]If the 500-year stillwater elevation (feet North American Vertical Datum of 1988 [NAVD] or feet National Geodetic Vertical Datum of 1929 [NGVD]) is not available, After Roof Collapse a rule of thumb can be used to approximate it as 1.25 times the 100-year stillwater elevation (feet NAVD or feet NGVD).[end text box]Coastal A Zones

The Coastal A Zone is the area where wave heights between 1.5 and 3.0 feet are expected during the base flood. It is recommended that buildings in this area, with a few exceptions, After Roof Collapse be designed and constructed similar to V Zone buildings. See the Hurricane Katrina Recovery Advisory at http://www.fema.gov/pdf/rebuild/mat/coastal_a_zones.pdf for details.

Other ConsiderationsAs previously stated, in addition to reduced building damage, there are other reasons to design for flood levels above the BFE: Reduced building maintenance After Roof Collapse and longer building life Reduced flood insurance premiums Reduced displacement and dislocation of building occupants after floods (and need for temporary shelter and assistance)  

Reduced job loss Increased retention of tax baseUntil flooded, many homeowners and communities don't think about these benefits. However, After Roof Collapse one of the most persuasive (to homeowners) arguments for elevating homes above the BFE is the reduction in annual flood insurance premiums. 

In most cases, flood premiums can be cut in half by elevating a home 2 feet above the BFE, saving several hundred dollars per year in A Zones, and $2,000 or more per year in V Zones. In V Zones, After Roof Collapse savings continue to increase with added freeboard.[Begin table]Flood Insurance Premium Reductions Can Be Significant Example 

1: V Zone building, supported on piles After Roof Collapse or piers, no below-BFE enclosure or obstruction. $250,000 building coverage, $100,000 contents coverage. Floor Elevation above BFE: 1 foot Reduction in Annual Flood Premium: 25%Floor Elevation above BFE: 2 feet Reduction in Annual Flood Premium: 50% Floor Elevation above BFE: 3 feet Reduction in Annual Flood Premium: 

Floor Elevation above BFE: 4 feet Reduction in Annual Flood Premium: 67% Example 2: A Zone building, slab or crawlspace foundation (no basement). $200,000 building After Roof Collapse coverage, $75,000 contents coverage.Floor Elevation above BFE: 1 foot Reduction in Annual Flood Premium: 39%Floor Elevation above BFE: 

2 feet Reduction in Annual Flood Premium: 48% Floor Elevation above BFE: 3 feet Reduction in Annual Flood Premium: 48%Floor Elevation above BFE: 4 feet Reduction in Annual Flood Premium: 48% Compared After Roof Collapse to flood premium with lowest floor at BFE 

Contracting FEMA For Debris Removal

A subgrant will be prepared at the appropriate cost share to reflect the amount of debris removal work completed during each operational time frame. If the Subgrantee agrees to this alternative procedure, no costs associated with debris removal that occur after 180 days from the start ofthe inc  read more..

Radon Test

Radon is a highly radioactive, colorless, odorless, and tasteless gaseous substance, it is formed as the natural deposits of thorium and uranium throughout the earth’s crust decaying process. As the Radon Mitigation Radon Test decay products are unknowingly inhaled, they could alter the cells in your lungs. T  read more..

How To Secure Windows For A Hurricane

To prepare for a hurricane, you should take the following measures: To begin preparing, you should build an emergency kit and make a family communications plan. Know your surroundings. Learn the elevation level of your property and whether the land is flood-prone. This will help you know how your pr  read more..

How To Test For Hoarding

Over the past year, my office has received an unusually high volume of calls from constituents who find themselves in difficult situations because of their out-of-control, overly cluttered apartments. Dismayed by the number of residents that are not only in danger of losing their homes, Hoarding How To Test For Hoarding&nb  read more..

Leak In The Ceiling

Protect Your House From Frozen Meters and Pipes Every winter hundreds of water meters and pipes freeze in area homes. You can take easy and inexpensive steps to prevent the damage, expense, and inconvenience associated with freezing pipes Water Damage Leak In The Ceiling and meters.

While   read more..

Wildlife Nuisance Control

The Louisiana Department of Wildlife and Fisheries does NOT provide nuisance animal control or removal services. We do permit individuals (Nuisance Wildlife Control Operators) to provide these services for a fee. The Department maintains a list of over 100 nuisance animal trappers located across the  read more..

Water Damage Restoration For Electronics

Second, although self-healing does occur in the conductive polymer due to degradation of the polymer's conductivity at high temperatures, this self-healing mechanism is not thought to be as effective as the self healing mechanism of MnO2-based tantalum capacitors. Decomposition of the conductive pol  read more..

How To Troubleshoot Sensors On Circuit Boards

Solid-electrolyte tantalum capacitors were first developed and commercially produced in the 1950s. They represented a quantum leap forward in miniaturization and reliability over existing wound-foil wet electrolytic capacitors. While the solid tantalum capacitor has dramatically improved electrical   read more..

How To Get Rid Of Mold

Equipment Moisture Meters: Measure/Monitor Moisture Levels in Building Materials Moisture meters may be helpful for measuring the moisture content in a variety of building materials following water damage. They can also be used to monitor the process of drying damaged materials. These direct reading  read more..

White Mold

Toxic White molds Some mold, such as Aspergillus versicolor and Stachybotrys atra (chartarum), are known to produce potent toxins under certain circumstances. Although some mycotoxins are well known to affect humans and have been shown to be responsible for human health effects, for many mycotoxins,  read more..