Does Spray Foam Insulation Cause Condensation




Does Spray Foam Insulation Cause Condensation

Debunking a Common Myth. 

I’m sure it comes as no surprise that one of the most common questions we get asked online and in person is “Does Spray Foam Insulation Cause Condensation?”. After all, you’re investing in your home’s comfort and energy efficiency, and the last thing you want is a new moisture problem. So let us clear the air once and for all. No. Properly installed spray foam insulation Does Not cause condensation.

In fact, regular house (open cell) spray foam insulation stops condensation as it acts as a barrier between the warm air in your home and the cold surfaces. It also seals air leeks which reduces the risk of condensation.

To understand how this is the case it is important to understand what condensation is. Condensation occurs when warm air with moisture in it, meets cold surfaces. The water in the air cools and condenses into water droplets. This is very common in homes with uninsulated walls, windows and ceilings, especially in cold climates like Ireland.

To elaborate a little more, over the years spray foam technology significantly improved. The new formulas used by Home Works Insulation are now more breathable, flexible and environmentally friendly. On top of this, professional installation techniques ensure proper application and ventilation minimize the risk of moisture build up.

While spray foam insulation is not a magic bullet for every home, it hosts a huge range of benefits when it comes to home comfort, energy efficiency and durability.

In conclusion, the questions of whether spray foam insulation causes condensation is a common misconception. When properly insulated by professionals, modern spray foam insulation offers exceptional insulation, breathability and moisture resistance, making it a perfect solution to improve most homes.


  • Always choose a professional installer to ensure application is done correctly and it is ventilated properly.
  • Choose reputable companies that use high quality material. You can trust that Home Works Insulation is SEAI approved and uses only the highest quality material available.
  • Consider your home’s specific needs when choosing your insulation. By choosing a reputable installer like Home Works Insulation, you will be able to ask for advice before getting the job fitted. An alternative like external wall insulation may be a better fit in certain circumstances.

I hope this blog has debunked a common myth about Spay Foam Insulation for many of you. Please feel free to share this information with friends or family who are considering getting their home insulated. And if you are in the South East of Ireland and are looking  for advice, prices or information on home insulation, be sure to drop us a follow on Facebook and Instagram or you can contact us using the form below. Our team of professionals will be happy to help.

    Contact Rory on 087-6098289 or using the form below


    Safety Assurance