A proper stucco system has multiple elements. Each needs to be installed correctly in order for the system to effectively direct ware away from the structure of your house. These elements range from the stucco itself to water-resistant barriers, window sill pan flashing and more. One important but lesser known element is the weep screed, which plays an important role in directing water away from the foundation of the home. Part of proper installation for a stucco system is the appropriate weep screed gap, also known as the distance between the weep screed and the grade. Let’s dive in to why this gap is important.
The What and Why of Weep Screed
First, what is a weep screed and why is it necessary? A weep screed is a piece of (usually vinyl) trim found at the bottom of the stucco wall. It serves two essential purposes:
- Holding the stucco in place during installation
- Allowing moisture to drain from the bottom of the walls.
Properly installed stucco allows moisture to drain from beneath the siding, allowing the surface of the stucco to properly dry. However, without the weep screed, moisture behind the stucco has nowhere to go. This moisture then collects behind the wall and causes mold and mildew problems. This leads to rot and stains – eventually inside your home!
The Weep Screed Gap
Second, you need to have the right amount of space between the weep screed and the finish grade, so that water can effectively run away from your home. Too little space and you’ll have problems with your stucco. Too much space and the weep screed cannot serve its purpose. Therefore, it’s best to have it at the foundation sill line and/or about six inches above grade. With this spacing, it can freely displace water away from your home.
Ai Restoration for All You Need to Know About the Weep Screed Gap
As exterior building envelope specialists, we’re here to answer your questions about proper siding installation and provide consultations to help determine the best course of action for your home. Reach out to us to speak with a professional and schedule an evaluation. We’ve earned the trust of hundreds of local homeowners and business owners, and we’re ready to earn yours as well.