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Category 900 — Materials

913Waterproofing

MD · 2026 Standard Specifications✓ Full text on BuildSpecBook pages 1008–1010 Save this section

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913 — WATERPROOFING 2026 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS CATEGORY 900 MATERIALS SECTION 913 — WATERPROOFING

913.00 Certification

The producer shall furnish certification as specified in TC-1.03.

913.01 Asphaltic Materials for Dampproofing and

913.01.01 Hot Applied Asphalt. D449.

913.01.02 Cold Applied Asphalt. Meet the following when tested per MSMT 423, Procedure A.

The material shall not contain isocyanide or any derivative of cyanide. SPECIFICATION LIMITS TEST and METHOD GRADE I GRADE II GRADE III R and B Softening Point T 53 104 – 143 F 145 – 170 F 172 – 200 F 32 F, 200 g, 60 sec 10 min 5 min 5 min 77 F, 100 g, 5 sec 30 – 100 25 – 50 20 – 40 Penetration, 0.10 mm, T 49 115 F, 50 g, 5 sec 100 min 130 max 100 max Permeability, g/cm3, max, MSMT 423 0.09 0.09 0.09 Flow test, mm, max, MSMT 423 CC 20 15 Flexibility, 60 F, MSMT 423 No peeling or loss of adhesion Imperviousness Test, MSMT 423 No pitting or discoloration Sag test, MSMT 423 No movement Grade I - Suitable for below ground and horizontal applications. Grade II - Suitable for below ground and above ground where surface temperatures do not exceed 120 F. 913 — WATERPROOFING 2026 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS Grade III - Suitable for below ground and above ground where surface temperatures exceed 120 F.

913.01.03 Cold Applied Asphalt Emulsion. D1227, Type II, using D2939, modified by

MSMT 423, Procedure B.

913.02 Primer for Use With Asphalt for Dampproofing and

D41.

913.03 Fabric Saturated With Asphalt for Use In

D173.

913.04 Dampproofing and Waterproofing Membrane

The adhesive side of the membrane shall be protected with a special release paper that can be easily removed for installation. The membrane shall meet the following requirements: TEST PROPERTY TEST METHOD SPECIFICATION LIMITS Grab Tensile Strength, lb/in. @ 12 in./minute rate of loading, min D5034 70 Pliability, 180° bend, 1 in. mandrel @ 20 F D146 unaffected Resistance to Puncture, lb min E154 (square mounting frame method) Permeance, perm (kg/Pa · s · m2), max E96, Method B 0.1 Weight, oz/yd2 min D3776 40 Primer — as specified by the manufacturer Roll and sheet waterproofing membrane may be accepted on certification. The manufacturer shall furnish certification as specified in TC-1.03 with actual test results showing that the material meets these Specifications. 913 — WATERPROOFING 2026 STANDARD SPECIFICATIONS FOR CONSTRUCTION AND MATERIALS

913.05 Sheet Metal for Flashing

Shall be of the material and gauge specified.

913.05.01 Copper. B152 for weight per square foot and gauge.

913.05.02 Galvanized Sheets. A653, Coating Designation G90.

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Source: Standard Specifications for Construction and Materials, 2026 Edition. Pages 1008–1010 of 1,138. View official source ↗

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