Coordinate sealant types and designations (S-#’s) with drawings. Coordinate requirements of sealants. 2.1 SEALANTS: A. Exterior Sealants: //1. //S-#// Vertical surfaces, provide non-staining ASTM C920, Type S or M, Grade NS, Class 25, // ,// Use NT. // //2. //S-#// Horizontal surfaces, provide ASTM C920, Type S or M, Grade P, Class 25, Use T. // 3. Provide location(s) of exterior sealant as follows: a. Joints formed where frames and subsills of windows, doors, louvers, and vents adjoin masonry, concrete, or metal frames. Provide sealant at exterior surfaces of exterior wall penetrations. b. Metal to metal. c. Masonry to masonry or stone. d. Stone to stone. e. Cast stone to cast stone. f. Masonry expansion and control joints. g. Wood to masonry. h. Masonry joints where shelf angles occur. i. where items penetrate exterior walls. j. Metal reglets, where flashing is inserted into masonry joints, and where flashing is penetrated by coping dowels. B. Floor Joint Sealant: 1. ASTM C920, Type S or M, Grade P, Class 25, // ,// Use T. //S-#// 2. //S-#// Provide location(s) of floor joint sealant as follows. a. Seats of metal thresholds exterior doors. b. Control and expansion joints in floors, slabs, ceramic tile, and walkways. C. Interior Sealants: //1. VOC Content of Interior Sealants: Sealants and sealant primers used inside the weatherproofing system are to comply with the following limits for VOC content when calculated according to 40 CFR 59, (EPA Method 24): a. Architectural Sealants: 250 g/L. b. Sealant Primers for Nonporous Substrates: 250 g/L. c. Sealant Primers for Porous Substrates: 775 g/L.//
Coordinate sealant types and designations (S-#’s) with drawings. Coordinate requirements of sealants. 2.1 SEALANTS: A. Exterior Sealants: //1. //S-#// Vertical surfaces, provide non-staining ASTM C920, Type S or M, Grade NS, Class 25, // ,// Use NT. // //2. //S-#// Horizontal surfaces, provide ASTM C920, Type S or M, Grade P, Class 25, Use T. // 3. Provide location(s) of exterior sealant as follows: a. Joints formed where frames and subsills of windows, doors, louvers, and vents adjoin masonry, concrete, or metal frames. Provide sealant at exterior surfaces of exterior wall penetrations. b. Metal to metal. c. Masonry to masonry or stone. d. Stone to stone. e. Cast stone to cast stone. f. Masonry expansion and control joints. g. Wood to masonry. h. Masonry joints where shelf angles occur. i. where items penetrate exterior walls. j. Metal reglets, where flashing is inserted into masonry joints, and where flashing is penetrated by coping dowels. B. Floor Joint Sealant: 1. ASTM C920, Type S or M, Grade P, Class 25, // ,// Use T. //S-#// 2. //S-#// Provide location(s) of floor joint sealant as follows. a. Seats of metal thresholds exterior doors. b. Control and expansion joints in floors, slabs, ceramic tile, and walkways. C. Interior Sealants: //1. VOC Content of Interior Sealants: Sealants and sealant primers used inside the weatherproofing system are to comply with the following limits for VOC content when calculated according to 40 CFR 59, (EPA Method 24): a. Architectural Sealants: 250 g/L. b. Sealant Primers for Nonporous Substrates: 250 g/L. c. Sealant Primers for Porous Substrates: 775 g/L.//
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