What are the differences between stucco over wood framing and stucco over masonry walls in terms of crack formation?
Stucco over wood framing doesn't exhibit significantly fewer cracks than stucco over masonry walls. Both may lead to cracking due to various factors.
Differences in Crack Formation
Stucco over Wood Framing: When stucco is applied over wood framing, the occurrence of cracks can be influenced by the relative movement of the wood. Wood tends to expand and contract with changes in temperature and humidity, which can put stress on the stucco surface and lead to cracks.
Stucco over Masonry Walls: On the other hand, stucco applied over masonry walls is subject to the stability of the underlying masonry. If the masonry wall experiences any movement or settling, it can transfer stress to the stucco layer, potentially causing cracks to form.
Preventing Cracks
In both cases, proper precautions can help minimize the occurrence of cracks in the stucco surface. Some preventive measures include:
- Adequate surface preparation before applying stucco
- Using the right type and thickness of stucco mix
- Installing control joints to accommodate any movement
- Regular maintenance and inspection to identify and address any issues early
By following these guidelines and ensuring proper installation, homeowners can reduce the risk of stucco cracks, regardless of whether the stucco is applied over wood framing or masonry walls.