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Adhered masonry veneer shall comply with the applicable requirements in this section and Sections 12.1 and 12.3 of TMS 402.
[BS] 1404.10.1 Exterior Adhered Masonry Veneer
Exterior adhered masonry veneer shall be installed in accordance with Section 1404.10 and the manufacturer's instructions.
[BS] 1404.10.1.1 Water-Resistive Barriers
Water-resistive barriers shall be installed as required in Section 2510.6.
[BS] 1404.10.1.2 Flashing
Flashing shall comply with the applicable requirements of Sections 1404.4 and 1404.10.1.2.1.
[BS] 1404.10.1.2.1 Flashing at Foundation
A corrosion-resistant screed or flashing of a minimum 0.019-inch (0.48 mm) or 26 gage galvanized or plastic with a minimum vertical attachment flange of 31/2 inches (89 mm) shall be installed to extend not less than 1 inch (25 mm) below the foundation plate line on exterior stud walls in accordance with Section 1404.4. The water-resistive barrier shall lap over the exterior of the attachment flange of the screed or flashing.
[BS] 1404.10.1.3 Clearances
On exterior stud walls, adhered masonry veneer shall be installed not less than 4 inches (102 mm) above the earth, or not less than 2 inches (51 mm) above paved areas, or not less than 1/2 inch (12.7 mm) above exterior walking surfaces that are supported by the same foundation that supports the exterior wall.
[BS] 1404.10.1.4 Adhered Masonry Veneer Installed With Lath and Mortar
Exterior adhered masonry veneer installed with lath and mortar shall comply with the following.
[BS] 1404.10.1.4.1 Lathing
Lathing shall comply with the requirements of Section 2510.
[BS] 1404.10.1.4.2 Scratch Coat
A nominal 1/2-inch-thick (12.7 mm) layer of mortar complying with the material requirements of Sections 2103 and 2512.2 shall be applied, encapsulating the lathing. The surface of this mortar shall be scored horizontally, resulting in a scratch coat.
[BS] 1404.10.1.4.3 Adhering Veneer
The masonry veneer units shall be adhered to the mortar scratch coat with a nominal 1/2-inch-thick (12.7 mm) setting bed of mortar complying with Sections 2103 and 2512.2 applied to create a full setting bed for the back of the masonry veneer units. The masonry veneer units shall be worked into the setting bed resulting in a nominal 3/8-inch (9.5 mm) setting bed after the masonry veneer units are applied.
[BS] 1404.10.1.5 Adhered Masonry Veneer Applied Directly to Masonry and Concrete
Adhered masonry veneer applied directly to masonry or concrete shall comply with the applicable requirements of Section 1404.10 and with the requirements of Section 1404.10.1.4 or 2510.7.
[BS] 1404.10.1.6 Cold Weather Construction
Cold weather construction of adhered masonry veneer shall comply with the requirements of Sections 2104 and 2512.4.
[BS] 1404.10.1.7 Hot Weather Construction
Hot weather construction of adhered masonry veneer shall comply with the requirements of Section 2104.
[BS] 1404.10.2 Exterior Adhered Masonry Veneers—Porcelain Tile
Adhered units weighing more than 3.5 pounds per square foot (0.17 kN/m2) shall not exceed 48 inches (1219 mm) in any face dimension nor more than 9 square feet (0.8 m2) in total face area and shall not weigh more than 6 pounds per square foot (0.29 kN/m2). Adhered units weighing less than or equal to 3.5 pounds per square foot (0.17 kN/m2) shall not exceed 72 inches (1829 mm) in any face dimension nor more than 17.5 square feet (1.6 m2) in total face areaPorcelain tile shall be adhered to an approved backing system.
[BS] 1404.10.3 Interior Adhered Masonry Veneers
Interior adhered masonry veneers shall have a maximum weight of 20 psf (0.958 kg/m2) and shall be installed in accordance with Section 1404.10. Where the interior adhered masonry veneer is supported by wood construction, the supporting members shall be designed to limit deflection to 1/600 of the span of the supporting members.

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