EIFS Revealed

Joint Treatment

The substrate is protected by a waterproof air barrier system.  The ‘system’ consists of durable joint treatment with a liquid-applied water resistive barrier over.  Building movement is focused at sheathing joints so the joint treatment durability receives separate testing and evaluation.  

EIFS require a structural substrate for support.  Typically wood frame for single-family residential construction or steel framing with water resistive gypsum based sheathing.  Masonry, such as hollow concrete block has been insulated with EIFS.