Prior to 1978, lead was used in the paint for many houses and apartments. Lead from paint, chips and dust can pose serious health hazards if not properly addressed. Lead can enter your body when breathing or swallowing lead dust, or if you ingest soil or paint chips containing lead. If not detected early, children with high levels of lead in their bodies can suffer from brain and nervous system damage, behavioral and learning problems, slowed growth and hearing problems. In adults, lead can cause problems such as high blood pressure and hypertension, nerve disorders, memory and concentration problems and muscle and joint pain.
Crawl space encapsulation is a term used to describe a crawl space that is protected from moisture by using a vapor barrier on the floor and walls. As opposed to a closed crawl space, in an encapsulated crawl space the vapor barrier is continued up the foundation wall and sealed (taped) to the floor vapor barrier. Supports, as well as plumbing coming up through the dirt and walls are also sealed. A polyurethane caulk or two-sided foundation tape is applied between the foundation wall and the crawl space vapor barrier to seal the moisture under the barrier. In most cases, the vapor barrier used is made of high quality polyethylene with a polyester mesh reinforcement.
Not all crawl space vapor barriers are created equal. A quality vapor barrier can last for 25 years or more, while a 6 or 10 mil clear plastic from the hardware store might last 3 to 5 years. To achieve lasting results, call PSi to properly install your vapor barrier.
PCB (polychlorinated biphenyl) compounds containing alumina pose a serious health threat, even 30 years after manufacturing of the product has ended. These compounds pollute our waterways, soil and air. PCBs have until now proven resistant to decomposition and destruction. PCBs are known human carcinogens and are associated with multiple adverse health effects. They have been used for a wide range of industrial and commercial purposes, most often in dielectric fluids for industrial electrical equipment. Other products include: caulking compounds, fire retardants, flame-proofing, adhesives, paints, and fluorescent lighting.