Cement Board Stucco Problems

Stucco failure is an all too common problem in southeast pennsylvania where over the past 15 years over 80 of stucco installations have been defective.

Cement board stucco problems.

It is critical that all installation steps are very carefully followed by a professional to ensure all penetrations and gaps are properly treated with the appropriate paint or caulk to protect the panels from moisture infiltration. It does this by eliminating mass transfer of warm moisture air into the wall assembly to a cold surface where it can condense. Absorptive claddings like fiber cement can hold moisture leading to panel damage rot and even mold problems. Plastering over durock cement board to wire or not to wire that is the question plastering a pizza oven applying both skim and finish coat.

The problem even if you embed mesh over the joints is that it is going to crack at the. We have 100 satisfaction. The system as a whole is inherently prone to high water burdens. Howdy folks in this step by step video i explain how we apply stucco to the exterior of this outside pizza oven framed with durock cement board.

In cement style stucco cracking can occur for several different reasons. The lack of a rainscreen simply compounds the problem. Stucco is applied with a trowel. Aside from james hardie s recent requirement for a minimum 3 8 rainscreen behind their fiber cement panels technical bulletin 18 manufacturers of the synthetic stucco finish systems have not required a rainscreen.

Also the foam behind the stucco when installed at or below grade was conductive to termite and fire ant infestation according to home inspections usa. While some stucco problems are not related to the way the stucco was put in place many issues can happen with both conventional and newer styles of stucco if they are not installed properly. Actually francis it is not. An air barrier cement board stucco exterior wall system minimizes the risk of condensation within the building envelope.

An unsightly and dangerous issue the moisture intrusion that results from failed stucco can lead to extensive damage and rot. You have to consider the amount of siding you ll need how long it will take and any additional fees for equipment and materials. Cement board has embedded mesh and is generally 5 8 thick same as a three coat system scratchcoat. Other problems with synthetic stucco include a softer surface than cement stucco increasing the likelihood of dents.