Possible problems with EIFS (Exterior Insulation and Finishing System)

EIFS (Exterior Insulation and Finishing System), often referred to as “Stucco”, is a type of exterior siding that can give a nice “rich” looking finish to your exterior walls.

The biggest difference between a brick cladding and an EIFS one is the fact that bricks are known to be porous and to let moisture in through the cladding. A builder choosing to use a brick cladding will allow for that moisture to weep out of the exterior walls through weep holes at the bottom of the wall. That is a very well known fact in construction and is generally installed properly and not causing any problems.

EIFS walls, however, are not always designed that way. Most of them installed today will in fact include some type of drainage layer to prevent problems…. but a lot of them have been installed without any. Take a look at the latest album titled “EIFS problems”. Those pictures were taken at a property in the south end of Ottawa built in 2005. As can be seen on the pictures, the trapped moisture behind the EIFS has caused some serious damage… most of the sheathing is rotten and will need to be replaced. There may also be a need to replace insulation and some of the studs.

If you are planning to buy a house that is clad with EIFS, make sure you have a member of our team inspect it first with a “TRAMEX Roof & Wall Moisture Meter”. If the owner of this property had used our services before purchasing his house, he wouldn’t have received this $30 000 bad news!



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