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Spray Polyurethane Foam (SPF) Home

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Spray Polyurethane Foam Two-Component High Pressure
Spray Polyurethane Foam Two-Component Low Pressure
Spray Polyurethane Foam One-Component Foam (OCF)

Spray polyurethane foam (SPF) is an effective insulation and air sealant material; however, exposures to its key ingredient, isocyanates such as "MDI," and other SPF chemicals that may be found in vapors, aerosols, dust or on surfaces during and for a period of time after installation may cause adverse health effects such as asthma. Therefore, steps to control exposures and safety tips should be followed.

Information on these Web pages is aimed at helping to ensure the safety of SPF applicators and building occupants where SPF is installed. It is also aimed at providing safety and scientific information to professionals in business, non-governmental organizations, academic institutions, and regulatory agencies.

SPF Home

Quick Safety Tips for SPF Users

SPF Chemicals
  • Chemicals in SPF Products
  • Isocyanate Compounds Commonly Used in SPF and related products
Types of SPF Products Exposure Potential Health Concerns Steps to Control Exposure
Vacate and Safe Re-Entry Time
  • Building Occupants and Other Workers Should Vacate During SPF Installation
  • Determining Safe Re-Entry Times
Related EPA Activities Related Federal Activities Related International Activities

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The Symposium on Developing Consensus Standards for Measuring Chemical Emissions from Spray Polyurethane Foam (SPF) Insulation will take place in Anaheim, CA on April 30 – May 1, 2015.

Ventilation Guidance

Read EPA's draft Ventilation Guidance for Spray Polyurethane Foam Application for basic ventilation principles and strategies to help protect workers and building occupants.

Certification and Training

The SPFA Professional Certification Program Exit EPA Disclaimer is for those active in both roofing and insulation installations of spray foam and encourages safety in the installation of spray foam. SPF system houses also offer classroom and hands-on instruction on the safe use of SPF. Also, receive free basic online training Exit EPA Disclaimer on CPI’s website.

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