AMSV-Proper installation is key

 

As a home inspector, I’ve seen firsthand the damage that can be caused by improperly installed adhered mechanical stone veneer (AMSV). If you’re a homeowner or buyer considering this type of veneer for your home’s exterior, it’s important to understand the potential risks and the importance of proper installation to avoid costly damage to your home.

Adhered mechanical stone veneer is a popular choice among homeowners and builders for a good reason. It is a thin layer of natural or artificial stone that is mechanically attached to the exterior of your home. This type of cladding is designed to provide a realistic look of a full masonry installation without the added weight and expense. Adhered mechanical stone veneer can be made of a variety of materials such as concrete, limestone, granite, or slate, but no matter the material, it must be installed correctly to prevent future issues.

An essential factor to consider is the type of substrate. The substrate is the surface to which the stone veneer will be attached. It can be a wood or metal frame, a masonry wall, or an insulated concrete form. The substrate should be strong, stable, and able to support the weight of the stone veneer. The substrate must be prepared correctly to allow proper attachment and bonding between the veneer and the substrate. If the substrate is not prepared correctly, it can lead to a failed installation.

One of the biggest concerns with AMSV is the potential for water damage. If the veneer is not installed with proper moisture barriers and flashing, water can seep behind the stone and cause damage to the home’s structure. This can lead to expensive repairs and even compromise the safety of the home.

Another issue that can arise from improper installation is the potential for the stone to detach from the home. While a bothersome maintenance issue at the lower levels, but when these AMSV pieces fall from above they become a serious safety hazard. AMSV is secured using mechanical fasteners, mortar and adhesives, so it is important that they are properly applied to prevent the veneer from coming loose and becoming a safety hazard.

A collection of AMSV pieces that have fallen off in less than one year.

To avoid these potential risks, it is essential that the installation is done by a qualified and experienced professional. They will know how to properly prepare the surface, apply the adhesive, and secure the mechanical fasteners to ensure a strong and secure bond. They will also install the necessary moisture barriers and flashing to protect your home from water damage.

If you are a homeowner considering adhered mechanical stone veneer, it is important to do your research and hire a reputable contractor with a proven track record of quality installations. Ask for referrals and see some of the work that they have done, not this year but from a few years ago so that you can see what to expect down the road. If you are buying a home with adhered mechanical stone veneer, it is crucial that you have it inspected by a professional to ensure it was installed correctly and is not posing any potential hazards.

While, adhered mechanical stone veneer can add a beautiful and natural touch to your home’s exterior, it must be installed correctly to avoid damage to the home. By hiring a qualified professional and paying close attention to the installation process, you can enjoy the benefits of a beautiful and durable finish without risking costly damage to your home or compromising the safety of your family.

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