Crawl Space Drying >> Water Removal

Most of our building codes require the use of crawlspace vents to help in removing moisture from the ME. But, many home construction professionals are now realizing that an unvented crawlspace or a closed crawlspace vents only after the crawlspace has had a chance to dry out after the initial construction is the best solution in homes that are using proper moisture control and coupled with exterior drainage techniques for two reasons.

  1. First, ventilation in the winter time is undesirable in order to keep our crawlspaces warmer. Second, the warm, moist outdoor air is brought into your crawlspace through the exterior foundation vents in the summer time is often unable to remove the moisture from a Water Removal and, in fact, could lead to increased moisture levels and resulting in mold in the crawlspace. For instance, a crawlspace that is kept cool by the ground in the summer time might have a temperature of 65°F with about 90% relative humidity and the dew point temperature of the air should be about 62°F.
  2. The estimated dew point of the outdoor air at 90°F and 60% RH is approximately 74°F. Therefore, the outdoor air that's brought into your crawlspace will actually increase the amount of moisture until the water condenses out on the cool Water Removal surface like your sub floor joists, the exterior foundation walls, and air-conditioning/heating ducts. As your framing stays damp, mold will begin to grow and dry rot in your wood framing develops. Radon is a highly radioactive gas that happens in some soils in every part of the country. It could enter a home through your crawlspace foundation and your floor system.
  3. If it happens in significant amounts, it could pose a severe health risk to you and your family. To protect yourself against any radon problems you should install a sealed, continuous layer of 6-mil polyethylene plastic over your Water Removal floor. Install a plastic tee just below the sheet of polyethylene plastic that will protrude through the polyethylene. Install a vertical 3-inch plastic piece of pipe from the crawlspace exterior foundation wall to the roof through an interior wall. Connect the plastic tee to the vertical 3-inch plastic pipe for a passive radon mitigation.
  4. Have a licensed electrician stub-in a junction box in your attic. Test the bottom Water Removal conditioned room for radon gas with an EPA approved radon test kit, or hire a qualified radon testing technician. If the house has an extremely high radon gas concentration, install an active radon removal system by attaching a small electric blower to the same plastic pipe that's in your attic to release the gases to the outside. If the radon gas levels are even higher like over 25 picocuries per liter, then consult with your local radon mitigation and Water Removal experts.


Insulate all ductwork in the crawlspace.
7. Insulate all hot and cold water lines in the crawlspace unless
they are located within the insulation.
8. Close crawlspace vents after making sure the crawlspace is dry
and all construction materials have dried out.

Basement Flood Cleanup

When returning to your home after a hurricane or flood, be aware that flood water may contain sewage. Protect yourself and your family by following these steps:Inside the Home Keep children and pets out of the affected area until cleanup has been completed. Wear rubber boots, rubber gloves, and Water Damage Basement Flood Cleanup  read more..

F5 Tornado Facts

As the cold pool elongates, repetitive storm growth on the downwind-moving, progressive part of the gust front comprises the derecho-producing convective system (red arc in bottom cross section of figure below, and Wind Damage F5 Tornado Facts on right side of plan view inset). 

Meanwh  read more..

Clear Your House Of Radon

EPA's Assessment of Risks from Radon in Homes In 2003 the Agency updated the estimates of lung cancer risks from indoor radon based on the National Academy of Sciences' (NAS) latest report on radon, the Biological Effects of Ionizing Radiation (BEIR) VI Report(1999). EPA worked Radon Mitigation Clear Your House Of Radon closely wit  read more..

Tax Deduction For Removing Asbestos Siding

Asbestos and lead have specificAsbestos Abatement Tax Deduction For Removing Asbestos Siding requirements from the Department of Natural Resources and the Department of Health Services for their identification and testing on a project site. See the sections on asbestos and lead in this step for those requirements. 

Yo  read more..

Fire Damage

Production methamphetamine, (meth), ends in the discharge of chemicals, the predecessor drugs are pseudoephedrine or ephedrine, Meth Lab Cleanup Fire Damage in vapor form and other mainly unidentified byproducts irrespective of the production approach used. Airborne pollutants are soaked up into soft objects in  read more..

Remove Lead Paint From Concrete

Lead is one of the most significant and widespread environmental hazards for children in Maryland. Children are at greatest risk from birth to age six while their neurological systems are developing. Sustained exposure to lead can cause long lasting neurological damage or death. Effects of sustained  read more..

Sewer Smell In My Basement Apartment

What is sewer gas?Sewer gas is a complex mixture of toxic and nontoxic gases which collect in the sewage system at varying levels depending on the source. Sewer gas is formed during the decay of household and industrial waste. Highly toxic components of sewer gas include hydrogen sulfide and ammonia  read more..

DIV Carpet Cleaning From Floods

When drying surface, free and bound water: o Two-day duration quantity equals 50% of the day 1 total number of air moverso Three-day duration sum of air movers for day 2 and 3 equals number for day 1 When drying bound water only the number of air movers per day should remain Structural Drying DIV Carpet Cleaning From Floods the sa  read more..

Seal Sump Pumps Against Radon

Integrating device: A measurement device that produces an average numerical value over a period of time (Also called time integrating device).Listing: The act of granting a participant or additional participant service that has met EPA Program requirements a proficiency listing for either measuremen  read more..

Get Water Stains Out Of Carpet

If you were ordered to evacuate your home, you must check with the mayor's office, town supervisor or local codes enforcement official before returning to your home. Even if you evacuated voluntarily, you should call the town clerk or the building department to ask about the status of buildings in y  read more..