Open-cell spray foam insulation is made up of foam with tiny air bubbles inside it. Yes, it is breathable. Open cell allows air to flow. This is why it has slightly lower r value than closed cell spray foam and it cost less to install. With these tiny pores in open cell spray foam it allows water seep away from your roof sheeting. Water will not sit beneath your shingles, it will not sit between the spray foam and roof, it will not create rot.
Open-cell spray foam seals nooks and crannies and insulates improving temperature, It stops air leaks in and out of your home. This can be especially helpful in attic encapsulation, where high temperatures push hot air through gaps around wall joints, air ducts, and light fixtures. there should be no roof rot when installing open cell spray foam insulation. If it does happen, you may have an inexperienced installer or the contractor did not put on the correct application of spray foam. Hiring a qualified spray foam contractor, 360 Thermal of Houston, can prevent mold and roof rot.
The installation of spray foam insulation, whether on the roof of a commercial building or in your home, requires precision, demonstrated expertise, and a commitment to quality application. Most spray foam contractors are not professionally trained by the Spray Polyurethane Foam Alliance. However, 360 Thermal Houston installers have completed arduous training and testing for spray foam installers.
