ASTM D7349 Fastener Seal Capability Testing for Roofing & Waterproofing Materials
The capability of asphalt-based roofing and waterproofing materials to seal around fasteners can be determined using the standard test method in ASTM D7349. This method can determine the penetration and prevent transmission of liquid water through the material under defined conditions.
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- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
Overview
ASTM D7349 is a standardized test method used to evaluate the sealing performance of roofing and waterproofing materials around fasteners.
This technique provides a consistent, reliable method for assessing water penetration resistance at fastener locations, which are crucial points for potential leaks in waterproofing and roofing systems. Additionally, ASTM D7349 is intended to be used as a standardised performance evaluation technique in product specifications developed by ASTM or other consensus bodies.
Scope, Applications, and Benefits
Scope
ASTM D7349 evaluates:
- Sealability of roofing materials around fasteners
- Resistance to water penetration at fastener points
- Performance of waterproofing membranes
- Integrity of fastening systems under static water exposure
The method applies to roofing and waterproofing products installed using mechanical fasteners.
Applications
- Commercial roofing systems
- Residential roofing materials
- Waterproofing membranes
- Building envelope systems
- Construction material qualification
- Product certification
- Quality control testing
- Research and development
Benefits
- Provides standardized seal ability assessment
- Identifies leakage risk at fastener locations
- Supports product comparison
- Improves roofing system reliability
- Assists in product development
- Ensures compliance with industry standards
- Enhances waterproofing performance
Test Process
Test Assembly Preparation
Roofing or waterproofing material is fastened to the substrate using a standard fastener.
1Water Column Setup & Conditioning
Assembly is placed on a water-filled container and conditioned at 4 ± 2 °C.
2Exposure Period & Removal
The specimen remains underwater for 72 hours, then is carefully removed.
3Inspection & Pass/Fail Evaluation
All areas are inspected for water presence, and results are classified as pass or fail.
4Technical Specifications
| Parameter | Details |
|---|---|
| Applicable Materials | Roofing and waterproofing membranes |
| Water Depth | 125 ± 6 mm (5 ± 0.25 in) |
| Test Temperature | 4 ± 2 °C (39.2 ± 3.6 °F) |
| Test Duration | 72 ± 0.25 hours |
| Output Units | SI and inch-pound |
Instrumentation Used for Testing
- Water column container
- 4 L (1 gallon) bottom can
- Temperature-controlled chamber
- Specimen roller (11.8 kg)
- Fasteners and substrate panels
- Measuring instruments
- Absorbent blotting materials
Results and Deliverables
- Pass/fail assessment
- Visual inspection records
- Photographic documentation
- Leakage evaluation reports
Frequently Asked Questions
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