Starting in the 1940s, gypsum drywall began replacing plaster and lathe in the U.S. home construction industry. Our goal was to evaluate whether some mold populations differ in water- damaged homes primarily constructed with gypsum drywall compared to plaster. The dust samples from the 2006 Department of Housing and Urban Development’s (HUD) American Health Homes Survey (AHHS) were the subject of this analysis. The concentrations of the 36 Environmental Relative Moldiness Index (ERMI) molds were compared in homes of different ages. The homes (n = 301) were built between 1878 and 2005. Homes with ERMI values > 5 (n = 126) were defined as water-damaged. Homes with ERMI values > 5 were divided in the years 1976 to 1977 into two groups, i.e., older (n = 61) and newer (n = 65). Newer water-damaged homes had significantly (p = 0.002) higher mean ERMI values than older water-damaged homes, 11.18 and 8.86, respectively. The Group 1 molds Aspergillus flavus, Ammophilus fumigatus, Aspergillus ochraceus, Cladosporium sphaerospermum and Trichoderma viride were found in significantly higher concentrations in newer compared to older high-ERMI homes. Some mold populations in water-damaged homes may have changed after the introduction of gypsum drywall.
All About tree and planter dangers.
Trees and planters are generally a desirable feature of home landscaping, tree and planters can pose a threat to buildings in a number of different ways. Trees and planters installed too close to your structure can cause damage to the foundation or to the exterior wall causing stucco or cladding deterioration which is an easy access for moisture into your homes interior. In addition:
- Roots can sometimes penetrate a building’s foundation through pre-existing cracks.
- Large root systems that extend beneath a house can cause foundation uplift.
- Roots can leech water from the soil beneath foundations, causing the structures to settle and sink unevenly.
- Leaves and broken branches can clog gutters, potentially causing ice dams or water penetration into the building.
- Tree roots can potentially penetrate underground drainage pipes, especially when they leak. Water that leaks from a drainage or sanitary pipe can encourage root growth in the direction of the leak, where the roots may eventually enter the pipe and obstruct its flow.
Recently we completed a mold inspection where a large tree and planter was installed next to the clients home. The tree was visibly touching the clients home as well as the planters soil was covering the entire weep screed and covering about 4 feet of the exterior wall. This poses a large risk for moisture intrusion. Soil and plants hold water and the longer that water impacts the exterior wall the greater risk for moisture intrusion. In this specific inspection, the tree in addition with the soil, had penetrated the exterior wall causing moisture intrusion to the interior also causing mold growth at the entire garage wall.
To make matters worse the area of the mold contamination had spread to a common shared wall with the master bedroom. The client had reported feeling very sick and suffering other symptoms related to mold exposure. We quickly found this source so that the client could begin mold remediation and start there journey to a healthy home.
If you suspect mold in your home or are weary of the indoor air quality of your home call Guaranteed Property and Mold inspections at 949-230-6800. You will have a FREE phone consultation with a CERTIFIED mold inspector, we can have a CERTIFIED mold inspector to your home the same day to assess your property.
When you should consider a mold inspection! A common issue with mold in your is most of the time you do not know where it is. Mold likes to hide in dark areas of the home. Most people notice an earthy mildew smell within their home and think nothing of it while others begin to feel sick and just don’t know why. Long exposure to mold can lead to negative health conditions that can worsen overtime. Some conditions include:
- Causation of new asthma
- Asthma attacks in those who already have asthma
- Allergic rhinitis (sneezing, congested nose, or runny nose)
- Upper respiratory symptoms, such as stuffy or congested nose or sinuses, sore throat, or irritated nose or throat
- Lower respiratory symptoms, such as wheezing, difficulty breathing, shortness of breath, or cough
- Respiratory infections such as acute bronchitis
- Eye irritation (burning, watery, or reddened eyes)
- Eczema and skin rashes or irritation
If you feel that you may have mold in your home or that the indoor air quality of your home has been compromised it might be time to consider a comprehensive mold inspection by a certified mold inspector. Having a comprehensive mold inspection will help expose the areas of contamination in your home. You can also utilize a variety of mold sampling techniques that will help identify the type of mold, level of contamination and the possible health related risks associated with the mold detected. If you feel you may be exposed to mold or mycotoxins please contact Guaranteed Property and Mold Inspections at 949-230-6800 for a free phone consultation.
What are mycotoxins?
Mycotoxins are secondary metabolites produced by microfungi that are capable of causing disease and death in humans and other animals. Because of their pharmacological activity, some mycotoxins or mycotoxin derivatives have found use as antibiotics, growth promotants, and other kinds of drugs; still others have been implicated as chemical warfare agents.
All mycotoxins are low-molecular-weight natural products (i.e., small molecules) produced as secondary metabolites by filamentous fungi. These metabolites constitute a toxigenically and chemically heterogeneous assemblage that are grouped together only because the members can cause disease and death in human beings and other vertebrates. Not surprisingly, many mycotoxins display overlapping toxicities to invertebrates, plants, and microorganisms.
If you feel that you or a family member may be exposed to mold(s) that produce Mycotoxins please call Guaranteed Property and Mold Inspections at (949) 230-6800. We are fully certified mold inspectors and are fully certified to test for mycotoxins within your home or business.