CertaSeal INT™ is a water-based, liquid acrylic, spray-on air sealing solution that provides code-compliant airtightness. Use it to fill and seal any void, crack, or penetration in a residential building envelope to help reduce air leakage in and out of the home. As building codes become stricter and more complex with respect to airtightness, contractors and builders require better, more effective solutions. CertaSeal INT™ achieves airtightness requirements for the life of the home – and helps limit air exchange long term. It also improves energy efficiency, indoor air quality, and acoustical comfort for customers and buyers. Over time, more states are adopting IECC 2015, 2018, or even stricter standards for airtightness. Be better prepared with CertaSeal INT™.