Crawl Space Drying >> How To Vent A Crawl Space In An Old House

Bleach fumes can irritate the eyes, nose, and throat. working areas are well ventilated. Properly collect and dispose extra disinfectant and runoff. Never mix bleach with ammonia; toxic fumes may be produced. How To Vent A Crawl Space In An Old House Can air ducts become contaminated with mold? 

Yes. Air duct systems can become contaminated with mold. How To Vent A Crawl Space In An Old House Duct systems may be constructed of bare sheet metal, sheet metal with fibrous glass insulation on the exterior, or sheet metal with an internal fibrous glass liner, or they may be  made entirely of fibrous glass. 

Bare sheet metal systems and sheet metal with exterior fibrous glass insulation can be cleaned and disinfected. If water damaged, ductwork made of sheet metal with an internal fibrous glass liner or made entirely of fibrous glass will often  need to be removed and discarded. How To Vent A Crawl Space In An Old House Ductwork in difficult-to-reach locations may have to be abandoned. 

If you have other questions, contact an air duct cleaning professional or licensed contractor. Can ozone air cleaners help remove indoor mold or reduce odors? The Colorado Department of Public Health and Environment strongly recommends that you NOT use an ozone air cleaner in any occupied space. How To Vent A Crawl Space In An Old House Ozone is a strong oxidizing agent that is used to eliminate odors. 

However, ozone is a known lung irritant. Ozone generators have been shown to sometimes produce  indoor levels above the safe limit. How To Vent A Crawl Space In An Old House It has been shown that ozone is not effective in controlling molds and other microbial contamination, even at concentrations far above safe health levels. 

Also, ozone may damage materials in the home, for example, cause rubber items to become brittle. How To Vent A Crawl Space In An Old House How can I prevent indoor mold problems in my home? Inspect your home regularly for the indications and sources of indoor moisture and mold listed on Page 1. Take steps to eliminate sources of water as quickly as possible. 

If a leak or flooding occurs, it is essential to act quickly: Stop the source of leak or flooding. Remove excess water with mops or wet vacuum. Whenever possible, move wet items to a dry and well ventilated area or outside to expedite drying. How To Vent A Crawl Space In An Old House Move  rugs and pull up areas of wet carpet as soon as possible. 

Open closet and cabinet doors and move furniture away from walls to increase circulation. How To Vent A Crawl Space In An Old House Run portable fans to increase air circulation. Do NOT use the home's central blower if flooding has occurred in it or in any of the ducts. Do NOT use fans if mold may have already started to grow -- more than 48 hours since flooding. 

Run dehumidifiers and window air conditioners to lower humidity. Do NOT turn up the heat or use heaters in confined areas, as higher temperatures increase the rate of mold growth. How To Vent A Crawl Space In An Old House If water has soaked inside the walls, it may be necessary to open wall cavities, remove baseboards, and/or pry open wall paneling. 

Cleaning Tips If a flooded building is to be safely reoccupied, it must be completely dry. Dirt and trash left by the flood must be removed from building materials and furnishings. How To Vent A Crawl Space In An Old House Moldy or mildewed items must be completely cleaned and disinfected or thrown away. 

Otherwise,  mold and mildew will return and possibly cause health problems for you and your family later on. Before going back to live in your home, take the following steps: How To Vent A Crawl Space In An Old House Get the mess out.Remove all floodwater, dirt and debris left behind by the floodwater. Remove mold and mildew. 

Moldy or mildewed building materials should be thoroughly cleaned and dried or removed and replaced. Building materials and furnishings that soaked up water should be removed from the building. How To Vent A Crawl Space In An Old House Check out the floors.Carpet and padding cannot be cleaned well enough to prevent mold and mildew from growing. Throw them away. 

Take out the flooring and sub-flooring if they cannot be completely cleaned and dried or if they have started to deteriorate. How To Vent A Crawl Space In An Old House The remaining floor and/or sub-floor must be dried out completely and disinfected. Make sure no moisture is trapped in or on the sub-floor. 

Sub-flooring made of particleboard or plywood should be removed and replaced because it can't be completely dried and disinfected. Crawl spaces should also be cleaned out and dried. Dry out walls. How To Vent A Crawl Space In An Old House Walls that were wet should be stripped to the studs and insulation removed. Walls must remain open to allow them to completely dry. 

Other wall cavities should be inspected for visible mold growth. Any area inside a wall cavity with visible mold growth should be opened, cleaned, disinfected and dried. How To Vent A Crawl Space In An Old House The exterior of each building (siding, etc.) will need to be evaluated to see if any or all of the exterior materials should be removed. 

Plaster, brick and concrete block walls can often be cleaned, disinfected and completely dried. Check heating and AC systems.If the heating and air-conditioning system or air ducts were flooded, use special care. How To Vent A Crawl Space In An Old House The inside parts of heating and air-conditioning systems that contacted floodwater are hiding places for mold. 

If mold grows in the system, mold particles may get into the air and make people sick. How To Vent A Crawl Space In An Old House The interior components (furnace, air-conditioner cooling coils, and fans) will need to be inspected, cleaned and decontaminated by professionals. Air registers (vents) and diffusers should be removed, cleaned, disinfected and reinstalled. 

Replace lined air ducts and duct-board that got wet. Unlined duct-work can be taken apart, washed, disinfected, dried, and How To Vent A Crawl Space In An Old House put back together. Air duct cleaning services are not very effective in cleaning flooded air ducts and are only useful on bare sheet-metal ducts. Salvage what you can.  

Personal property and furnishings that are moist or wet 24 hours after floodwater recedes will have  mold growing in our on them. Clothing and linens may be salvaged by washing with chlorine bleach and How To Vent A Crawl Space In An Old House detergent, or sent to commercial laundries or dry cleaners. 

Upholstered furniture, mattresses, and furniture made of particleboard or wafer board should be thrown away. Get information on saving valuable papers, books and photographs from the American Red Cross. Remove contaminants. Make sure that any chemical contamination and  How To Vent A Crawl Space In An Old House  hazardous materials have been removed from the building. 

For proper disposal, contact your local waste disposal service. Make sure that all parts of the building are dry before rebuilding or How To Vent A Crawl Space In An Old House repairing. Mold will grow on replacement materials if the studs, sub-floor or other building parts are not completely dry. The structure should be tested with a moisture meter before you start replacing the damaged parts of your home. 

Clean and dry the right way: Nonporous materials (materials that don't soak up water) and furnishings and other surfaces should be thoroughly cleaned, disinfected and allowed to dry completely. First, scrub all surfaces with soap and water and rinse well. (Scrubbing removes mold spores, and How To Vent A Crawl Space In An Old House the dirt that mold and mildew can grow on.) Then, disinfect everything. 

Liquid chlorine bleach should be used to disinfect and kill any remaining mold and mildew. Follow the instructions on the label and let the bleach solution remain on the surface for at least 15 minutes before rinsing and drying. After cleaning and disinfecting, you must completely dry each item or mold and How To Vent A Crawl Space In An Old House mildew will return. To speed drying, keep fresh air circulating.

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