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Mold in New Construction: What Contractors Should Know

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You wouldn’t think that new homes and other buildings would be subject to mold growth, but it’s more common than you may think.

There are two key factors causing mold growth in new construction: improper installation of vapor barriers and poor lumber storage. The vapor barrier is the home’s initial line of defense against moisture.. A poorly installed vapor barrier will allow moisture or water to intrude. A vapor barrier is supposed to stop moisture from intruding into the slab, but it only works if it’s perfectly sealed.

Another key issue that builders tend to neglect is lumber storage. When a contractor accepts delivery of lumber, it is stored on the ground, exposed to moisture. If it sits there for several weeks, odds are it will be exposed to the elements. Mold is very common in the soil. When it rains, having the lumber in the mud can cause excess moisture to remain in the wood for much longer than 48 hours, which is how long it takes for mold to grow.

What Causes Mold in New Construction? 

You wouldn’t think that new homes and other buildings would be subject to mold growth, but it’s more common than you may think. Here’s how it happens:

  • Incomplete roofing or siding can allow rainwater to penetrate the building envelope.
  • Plumbing leaks. Improperly installed or tested plumbing can lead to hidden leaks.
  • HVAC issues. Poorly designed or maintained HVAC systems can cause condensation.
  • Poor site drainage can lead to water pooling around or entering the foundation.
  • Wet materials. Using materials that have been exposed to moisture during storage or transport can lead to mold.
  • High humidity. Mold can be caused by insufficient drying of building materials before they are enclosed.
  • Lack of ventilation. Poor ventilation during construction can trap moisture inside the structure.

Preventing Mold

Here are some preventive measures for contractors:

  • Use materials and construction methods that resist moisture.
  • Ensure the site is graded to prevent water accumulation near the foundation.
  • Keep building materials dry during storage and transport.
  • Check materials for signs of moisture damage before use.
  • Use temporary coverings or enclosures to protect the building during construction.
  • Allow sufficient time for materials to dry before enclosing them.
  • Ensure proper ventilation during and after construction to prevent moisture buildup.
  • Conduct regular inspections to identify and address moisture issues promptly.
  • Look for visible signs of mold growth on surfaces.
  • Use barriers to contain mold spores and prevent spread.
  • Hire certified mold remediation specialists to clean and remove mold.

Contact Us Today

Construction professionals should add mold to their list of concerns when building a new home. Mold has many harmful effects, so it’s important to prevent this issue from occurring in new construction.

Clients could sue you for mold issues. Protect yourself with legal help from the Florida defective construction claim lawyers from Linkhorst Law Firm. We will be sure your defective construction issue is handled properly. To schedule a consultation, call 561-626-8880 or fill out the online form.

Source:

waterproofmag.com/2021/06/mold-growth-in-new-construction/

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