Flood Damage >> Clean Up After A Flood

Then appropriate, replace lood damaged windows with

vinyl or metal framed windows. Hollow core or polystyrene foam illed metal doors are water resistant. Metal in

both windows and doors may rust slightly but that is easily

repaired. Marine plywood exterior-wall sheathing.

Meantto resistlow-level moisture, humidity. notforwatersaturation Exterior-grade plywood conditions.

Manufacturers do not consider greenboard (moisture-resistant dry

wall)tobe a lood-prooing material. it canbe submerged forseveral Greenboard hourswithout extensive deterioration and itis only slightly more

expensive than normalplasterboard.

Will not deform orlose itsinsulativepropertieswhenwet. Canbe Rigid (closed-cell) dried out and reinstalled inwall or loor cavity. Use instead of iber- insulation glass insulation.

Synthetic baseboards Use instead ofwoodbase.

Will notrust afterbeing in loodwaters. Use at all locations upto three Galvanized nails feet above the Base Flood elevation.

Will notwarpifsaturated. May rustin spots,butthis canbe sanded out Metal doors and frames and repainted. Use at all doorways, especially exterior.

Metal and vinyl windows Will notwarpifsaturated.

adheresto marine orpressure treatedplywood underlaymentwith Sheet vinyl looring or tile waterproof adhesive.

Usewith synthetic carpetpad. do not Indoor and outdoor carpet permanently fasten down.

Will notrust and alloweasy removal and

Galvanized drywall screws reassembly ofinteriorwalls. Use instead of

standard drywall nails.

not damagedbywatersaturation,but mustbe Brick, concrete used in conjunctionwith awaterproof membrane.

Made ofrecycledplastics. Waterproof and

Plastic wood dimensionally stable. Check building code for

acceptable uses.

Relatively stable inwatersaturation conditions.

Will notsustain heavy damagebut maywarp.

Plywood second only to marineplywood in

Pressure-treated lumber/ water-resistance. Use at all lood-levels.

plywood Moisture-resistant materialbelowthe Base Flood

elevation. (Note: If treated lumber is used, protective gloves must be

worn during installation, and a protective barrier such as drywall must

be placed between the treated lumber and living space ). There is a wide range of lood protection measures for mitigation techniques that can be used to protect speciic

buildings that can eliminate or reduce the risk of fu- elements of a building. This booklet provides illustrations

ture lood damage. Buildings can be relocated out of the of many lood loss reduction techniques and highlights

loodplain area or elevated above the projected lood levels. some important basic building code requirements for

There are also a number of relatively inexpensive lood building or repairing homes located in a loodplain. It is possible, and sometimes necessary, to move your

house to a new location outside the loodplain. Moving

your home out of the loodplain area is the surest way to

protect it and yourself from lood damage, but it can be

costly. You may need to purchase a new lot unless your

present lot is large and has a good building location on

higher ground.

To relocate a building, it is detached from the original

foundation, placed on a heavy-duty truck bed, transported

to the new site and set on a conventional foundation.

Unless there is a hidden structural defect, most homes and

small commercial buildings in good structural condition can be moved with no more damage than occasional

slight cracks in the plaster or wallboard joints. Single-story

frame houses over a crawlspace or basement are easiest to

relocate. Multi-story, slab-on-grade, and brick buildings

can also be moved.

Moving a house is a complex operation that requires a professional house mover. Before you choose a house mover,

obtain bids from several companies and contractors. Before

choosing the lowest bid be certain the contractor or mover

has the experience and resources to complete the project at

the quoted price. Be certain that they have liability insurance to cover the move.

Also, contact your local oficials as possible alternative

funding for relocation may be available, depending on

where you live. Most types of homes, including wood frame, brick veneer,

slab-on-grade, crawlspace or homes with basements can be

elevated above loodwaters. This is a reliable loodprooing

method and requires little human intervention to prepare

for a lood. Elevation requirements vary with local codes

and ordinances but the new lowest loor elevation should

be at or above the 100-year-lood level. You may wish to

exceed the code requirements. Some buildings may be

elevated high enough for the new lower level to serve as

a garage. All elevated homes need new stairs and porches

built to the new height. Elevating a home requires the

services of plumbers, electricians, house movers and

contractors. Because the new foundation will be in the

loodwaters, it is important that it be structurally designed

to withstand lateral (sideways) forces like fast-lowing

currents and the impact of waterborne debris. A structural

engineer can help you design your new foundation and

obtain a permit from your building department. Within communities participating in the NFIP, certain

requirements apply when building a new home, when

substantial damage has occurred to an existing home, or

when substantial improvements to an existing home are

planned.

♦ In A-Zones, the top of a building’s lowest loor, including basement, must be elevated to the Base Flood Elevation (BFE) plus any additional height above the BFE

your community may require.

A♦Zones♦-♦Riverine♦and♦coastal♦areas♦subject♦to♦looding♦with♦waves♦less♦than♦3♦ft.♦in♦height.

♦ In V-Zones, the lowest portion of the horizontal structural members supporting the lowest loor must be

elevated to the BFE plus any additional height above the

BFE your community may require.

V-Zones♦-♦Areas♦adjacent♦to♦the♦beach♦subject♦to♦unusually♦high♦tides♦with♦wind♦driven,♦velocity♦waves♦

of♦three♦ft.♦or♦more.

♦ Building materials located below the BFE, must be

resistant to lood damage.

♦ Any enclosed area below the BFE must be constructed

to prevent lotation, collapse, and lateral (sideways)

movement of the structure. In A-Zones, exterior walls

must have suficient openings, or be designed, to allow

the equalization of the hydrostatic forces on the walls.

For V-Zones only, the walls of the enclosed area must

be constructed to breakaway. Solid breakaway walls

are not an integral part of the structural support of a

building and are intended through their design and

construction to collapse under speciic lateral loading

forces, without causing damage to the elevated portion

of the building or supporting foundation. An area so

enclosed is not secure against forcible entry.

♦ Construction of basements (enclosures with loor levels

completely below ground level) is not permitted below

the BFE.

♦ All machinery and equipment servicing the building

must be elevated to or above the BFE or designed to

prevent water from entering or accumulating during

looding. Such machinery/equipment includes but is

not limited to furnaces, heat pumps, hot water heaters, air-conditioners, washers, dryers, refrigerators and

similar appliances, elevator lift machinery, and electrical junction and circuit breaker boxes.

♦ All space designed for human habitation, including

bedrooms, bathrooms, kitchen, dining, living, family

and recreation rooms, must be elevated to or above the

BFE.

♦ Uses permitted in spaces below the BFE are restricted

to vehicular parking, limited storage, and building access (stairs, stairwells and elevator shafts).

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