Describe the difference between a rainscreen and a weep screed, and the principles of drainage planes. With careful attention to details, the illusion of natural stone can be maintained using this handcrafted and hand-placed material. A recent trend includes the use of manufactured stone in contemporary buildings. They are choosing stones that replicate split-face and saw-cut limestone and ledgestone, tightly stacked with minimal or no grout lines to create a sleek, modern appearance.
This informational video will demonstrate the advantages of installing masonry veneers using the LATICRETE® MVIS.ASTM C1780 – Masonry Veneer Manufacturers Association Mvmade1W5G-GIyr8QWHha2ABQ
Using manufactured stone as an alternative to natural stone can provide great benefits. The incorporation of natural light and the introduction of a variety of natural materials can promote healing. Broken stones should not be used to fill voids, and all large spaces should be resolved as part of a horizontal plane. Neither natural or manufactured stone cannot be installed at or below grade. For example, a bed of stones can be placed adjacent to the wall along with a landscape area beyond that can screen the transition.
Three popular stone grout techniques are standard joints (raked), dry-stack joints, and overgrout joints. The semi-dry mortar is later “raked” with a variety of tools, ultimately achieving a consistent depth and giving it that distinctive raked-out look. Today, trowels, tuck pointers, and even fingers are used to achieve the overgrouted or sacked look. The grout overlaps the face of the stone, widening the joints and making them appear very irregular. Expansion joints and control joints are not the same, although they both provide for unavoidable movement in walls. If thermal or mechanical movement is induced, the stone will not crack, but the grout joint or dry joint would “absorb” the movement.
Sometimes, the stone is installed across the joint, and a saw is used to cut the stone down the middle of the joint. S mortars are used in more severe climates or for walls needing extra strength. Polymer modified mortars are similar to that used with ceramic tiles. These products provide a greater flexibility of the bond for earthquake zones and in harsh climates. Many colors are available from manufacturers. Different mortar types are specified in different seismic zones. Exterior manufactured stone masonry veneers are adhered to wall sections using one of two major types of drainage plane systems. Approaches are code-approved and widely used, however, the three-dimensional method provides an additional level of insurance to the protection afforded a structural system.
Wall sections with air gaps prevent water or moisture that eludes a stone veneer from reaching the structural elements of the wall. Two-dimensional wall sections are constructed with layers of building paper and provide protection along the length and width of the wall. Weep holes are small openings in mortar joints provided at the base of a wall assembly to provide drainage. The building code requires that two layers of a weather-resistant barrier should be placed as part of a structural wall surface.
Installation Standards for Adhered Manufactured Stone Masonry Veneer “AMSMV
The layer nearest to the interior is the workhorse. A drainage plane is the area of the building enclosure that provides moisture protection by creating a surface along which moisture is controlled.
At the termination of a wall, a weep screed, which is a type of flashing, is installed. Reducing drying time in a wall enclosure prevents the growth of mold. Manufactured stone masonry veneer facades provide the first layer of weatherization protection. Flashings are installed at the termination of the wall system, such as doors, roofs, and lintels. Flashings and metal details should be made from corrosion-resistant materials and installed according to the manufacturer’s directions. Depending on the density of a natural stone, a manufactured stone with a limestone finish is half the weight of a similar-sized natural limestone.
Manufactured stone veneer is a product governed and tested by numerous code and building associations. For thick bed (mortar bed) adhered veneers, ceramic tile and stone installations, maximum allowable variation in the installation substrate to be (1/4 inch in 10 feet (6 mm in 3 m).
How To Install Stone Veneer, Flashing Provia
Before beginning stone veneer application, install flashing at all through-wall penetrations and at terminations of adhered …