Spray polyurethane, when properly applied and completely dry, is generally considered safe for most residential and commercial applications. However, there are important safety considerations, particularly during and immediately after application:

  • Chemical fumes during application: The process of installing spray polyurethane releases volatile organic compounds (VOCs) and other chemical fumes that can be harmful if inhaled. For this reason, application should be carried out in a well-ventilated environment, and it is often advisable to leave the premises during and immediately after application.
  • Drying time: Once dry, spray polyurethane forms a solid barrier that does not give off gases or fumes. However, it is essential to allow sufficient time for the material to harden completely before re-entering the space.
  • Sensitivities and allergies: Some people may be more sensitive to the components of spray polyurethane. Individuals with allergies, respiratory conditions, or chemical sensitivities should be particularly cautious and consult a professional before choosing this type of insulation.
  • Product and application quality: The safety of sprayed polyurethane also depends on the quality of the product and the skill of the installer. It’s crucial to choose quality products and a certified, experienced installer.
  • Regulations and standards: Sprayed polyurethane products must meet strict standards and regulations to ensure their safety.

In short, although sprayed polyurethane is generally safe once dry and properly installed, it is important to take precautions during installation and to comply with the manufacturer’s and installer’s guidelines to ensure safety.