Structural Drying >> Roof Leak Mold

Initial Restoration for Flooded Buildings Hurricane Katrina Recovery Advisory November 2005 FEMA Part 1 NOTE: This advisory is specifically intended for buildings subject to the effects of long-term flooding and widespread mold growth following Hurricane Katrina. For additional information on more common water leakage and mold situations, Roof Leak Mold refer to the FEMA website (http://www.fema.gov).

Related links to the Environmental Protection Agency (EPA) and the Centers for Disease Control and Prevention (CDC) sites listed at the end of this advisory.[End text box]During the initial visit to a flood-damaged building, Roof Leak Mold the situation often appears overwhelming (Figure 1). 

However, despite the shock that often accompanies an individual's first look at the damage, there are a number of straightforward principles can be applied to assist with the flood restoration effort. In addition to following the steps outlined below, individuals should review the Hurricane Katrina Recovery Advisory, Roof Leak Mold The ABC's of Returning to Flooded Buildings. 
Figure 1 caption. 

Typical flood damage to furniture and interior walls (Hurricane Katrina). [end caption]1. Air OutTo promote drying, Roof Leak Mold open all doors and windows whenever you are present and leave as many open when you are not present as security concerns allow. Some styles of windows (double-hung) and patio doors may be able to be left partially open and secured from external opening by inserting a nail in the window frame or using a wooden dowel or stick. 

Upper floor windows can usually be left open all the time and will also assist in drying the whole house. Try to take advantage of cross-ventilation by opening windows on multiple levels Roof Leak Mold and opposite sides of the building.Open interior doors, especially closets and interior rooms, to allow air movement to reach all areas of the building. 

Take doors off their hinges if necessary to promote air flow.Open kitchen cabinet and bathroom vanity doors; remove drawers and stack them to dry.Open the attic access, if available, Roof Leak Mold to increase ventilation. Consider the benefits (improved drying) and risks (falling dust, insulation, or other debris) of adding an attic access where none exists.

When electricity is available, use fans to push moist air outside. However, Roof Leak Mold avoid use of fans if the house is contaminated with sewage as the air movement may spread bacterial contamination.2. Move Out Remove salvageable contents that were not impacted by the water. If the upper floors are dry, it may be possible to move such items to those areas. 

When moving items from impacted areas of the building to other locations, consider using protective mats Roof Leak Mold or non-slip drop cloths (e.g., fabric painter cloths) to avoid contamination of unimpacted surfaces.Remove saturated porous materials such as mattresses or upholstery, especially those with visible fungal growth. 

These items should be moved out of the building as soon as possible. Cover contaminated items with plastic drop cloths prior to moving to prevent spread of contaminants. Appropriate personal protective equipment should be utilized to avoid injury from possible exposure to mold Roof Leak Mold and bacteria.3. Tear Out

Prior to beginning tear out, install plastic barriers between affected and unaffected areas of the premises (typically between the first and second floors). This will reduce the potential for secondary damage occurring in the unaffected areas. Remove wet carpet Roof Leak Mold and padding. Tack strips should also be removed completely when the carpet is taken out to minimize injury during subsequent activities. 

Since carpet tack strips have protruding nails, wear leather gloves to protect hands from puncture wounds while removing Roof Leak Mold and handling tack strips. Removing wooden baseboards prior to carpet tear out may allow for their later reinstallation. Remove any curled vinyl tiles or linoleum over concrete floors, and remove all vinyl tiles or linoleum over wooden sub-floors to allow the wood to dry. 

Respiratory protection should be worn as many older (pre-1970s) flooring products, such as 9-inch square tiles and adhesives, Roof Leak Mold often contain asbestos. Although punching holes in walls for drainage is commonly recommended, this practice does not drain water nor does it cause the wall to dry faster. 

If holes are not punched in the walls, the drywall (gypsum board) may be able to be easily repaired and restored. If drywall Roof Leak Mold or plaster has been saturated by contaminated floodwater, it should be removed. Respiratory protection should be worn when removing drywall as some older drywall joint compound contains asbestos. 

If the water level was less than 2½ feet, the wall material should be removed to a height of 4 feet to facilitate reinstallation of full sheets of drywall. If the water level was greater than 2½ feet, Roof Leak Mold the wall material should be removed to a height of 8 feet or the ceiling junction, whichever is higher. 

Electrical outlet and wall switch plates and door and window moldings must be removed prior to the tear out of the wall material. Fibrous wall insulation (fiberglass, mineral wool, cellulose, Roof Leak Mold wood fiberboard, etc.) saturated by floodwater should be removed completely. Foam plastic insulation may be left in place and allowed to dry.

Flooded electrical receptacles should be removed completely after the appropriate circuit breakers Roof Leak Mold or fuses are deactivated.Wall paneling should be removed if it is swollen or if saturated drywall is behind the paneling.4. Clean OutFollowing any necessary tear out, clean up any remaining debris and muck. Squeegees, shovels, and brooms are effective for such cleaning. 

Personal protective equipment should be utilized. Detailed cleaning and Roof Leak Mold sanitizing of the remaining materials should be conducted. A shop vacuum with dry filters in place and with a solution of clean water and disinfectant in the tank (2-inch depth) to minimize the spread of dust can be used.Mold removal. Treatment with commercial mold removers does eliminate visible evidence of mold growth on exposed surfaces and is recommended for restoring flood-damaged homes. 

Tests have found very little Roof Leak Mold or no evidence of mold growth in the non-exposed (hidden) portions of the walls. Treating the non-exposed portions of the walls for mold control does not appear warranted in most cases. Spraying vertical surfaces using a compression (pump-up) garden sprayer with a commercial mildew remover is recommended.

Do It Yourself Restoration Of Mold Damage On Paper

Although it is neither necessary nor desirable to remove all dirt or discoloration from old papers, surface cleaning sometimes improves the appearance of an artifact. Surface cleaning can also remove substances that might eventually damage paper, or that could be transferred to other papers during h  read more..

How To Remove The Smell Of Smoke Damage

Smoke is a complex mixture of carbon dioxide, water vapor, carbon monoxide, particulate matter, hydrocarbons and other organic chemicals, nitrogen oxides, and trace minerals. The individual compounds present in smoke number in the thousands. Smoke composition depends on multiple factors, including t  read more..

How To Remove Smoke Odor

Identification and Preparation of Cleaner Air Shelters for Protection of the Public from Wildfire Smoke 1. Identify one or more facilities with tight-sealing windows and doors and public access (for example, public schools, fire stations, or hospitals). As a rule of thumb, Odor Control How To Remove Smoke Odor newer build  read more..

Lead Based Paint Removal Requirements

How did the Lead Accreditation & Certification Program begin? California's lead accreditation and certification program began in June, 1994. At that time, new childhood lead poisoning prevention legislation (codified in Health and Safety Code 105250 et seq.) required the California Department of  read more..

Mold Mitigation

Molds will grow best on damp or wet carbon-based substance which could be used for a food basis and tend to hold in the dampness. Dehumidification Mold Mitigation need a high dampness level to sprout and begin developing. Most molds need a water amount of the substance of 70% to 90% to begin developing. Mold spores that   read more..

Debris Disposal From Hurricane Winds

Modify disaster assistance employee deployment processes to ensure that Incident Management Assistance Teams and other FEMA first responders include one or more debris specialists with the experience and management skills to assist communities in the crucial early stages of planning and Debris Removal Debris Disposal From Hurricane Winds impleme  read more..

Major Storm Preparations

Once a hurricane or major storm hits, it's too late to protect your home and property. But there are things you can do now to limit future wind damage. Some are fairly simple and inexpensive; others will require a contractor. You'll need to consider the characteristics of your home, Wind Damage Major Storm Preparations y  read more..

Flood Insurance Rate Map

Zone AO: Areas subject to inundation by 1-percent-annual-chance shallow flood insurance rate map (usually sheet flow on sloping terrain) where average depths are 1–3 feet. Average Flood Damage Flood Insurance Rate Map depths derived from detailed hydraulic analyses are shown within this zone. Mandatory flood insurance rate map ins  read more..

How To Remove Asbestos From An Apartment Building

Where more than one liquid is suggested, the first is preferred; however, in some cases this liquid will not give good dispersion color. Take care to avoid interferences in the other liquid; e.g., wollastonite in n = 1.620 will give the same colors as tremolite. In n = 1.605 wollastonite will appear  read more..

Protect Your House From Animal Damage

Step 4. Determine if young are involved After finding the main entry you need to verify that no young are inside before proceeding with the eviction process. Because each situation and each animal is different, do this even if it seems early or late in the year for young to be present. Failing to do  read more..