ASTM D7349: Roofing Fastener Seal Capability Testing Services
Accredited ASTM D7349 roofing fastener seal capability testing from Infinita Lab, performed to the exact standard requirements - accurate, reproducible results with full documentation for compliance, R&D, and quality control programs.
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- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
What Is ASTM D7349 Roofing Fastener Seal Capability?
ASTM D7349, officially titled the Standard Test Method for Determining the Capability of Roofing and Waterproofing Materials to Seal Around Fasteners, evaluates one specific thing: how well an asphalt-based roofing or waterproofing membrane reseals itself around a mechanical fastener (a nail, screw, or similar penetration) driven through it during installation. The standard sits under ASTM Committee D08 on Roofing and Waterproofing, maintained by Subcommittee D08.02. It’s published jointly with its SI companion, D7349M. The currently active edition is D7349/D7349M-15(2024), reapproved in 2024 from the original 2015 revision. D7349 exists because ASTM D1970 covers only self-adhering ice-dam protection membranes. That left a lot of asphalt-based roofing and waterproofing products, ones that rely on fastener penetrations as a normal part of installation, without a matching test method. D7349 closes that gap.
The method is qualitative, not quantitative. It determines whether a membrane lets liquid water pass at the fastener location under defined conditions. Nothing more. There’s no rate calculated, no volume measured. A technician prepares a specimen with a fastener driven through it the way it would be installed in the field, then applies a sustained water head to the top surface for a set conditioning period. That period can include exposure at a controlled, low temperature, simulating the stresses of a cold-weather install. Once the exposure period ends, the underside gets inspected for any sign of water migration past the fastener. The specimen either passes or fails, nothing in between. Because D7349 allows the protocol to flex for different product types and end uses, labs and manufacturers reference it constantly across membrane specifications. It reads less like one rigid procedure and more like a flexible framework.
Applications and Benefits of ASTM D7349 Roofing Fastener Seal Capability Testing
Scope
ASTM D7349 evaluates:
- ASTM D7349/D7349M sets out a qualitative procedure for determining whether an asphalt-based roofing or waterproofing material can seal around a fastener that penetrates it during installation.
- It covers membranes where fasteners are an intended, unavoidable part of installation: mechanically attached underlayment’s and ice-dam protection sheets, among others.
- What’s being evaluated is resistance to liquid water transmission right at the fastener penetration, not the general permeability of the membrane sheet.
- A test specimen gets prepared with a fastener installed through it, in a configuration that mirrors actual field practice.
- Testing applies a sustained water head over the fastener penetration for a defined exposure period.
- Specimens can be conditioned at controlled temperatures to represent installation or service conditions, including cold-weather scenarios.
- Results come down to pass or fail, based on whether water is observed passing through or around the fastener penetration.
- D7349 extends coverage beyond ASTM D1970, which only addresses self-adhering ice and water barrier membranes.
- The procedure is built to flex: fastener types, substrates, and conditioning protocols can all be adjusted to match the product and application under evaluation.
- ASTM Subcommittee D08.02, under Committee D08 on Roofing and Waterproofing, maintains the standard.
Applications
- Qualification testing for self-adhering ice and water barrier membranes used under shingles, metal roofing, and other steep-slope coverings.
- Evaluating mechanically attached roofing underlayments where fastener penetrations are required for installation.
- Assessment of asphalt-based waterproofing membranes in low-slope roofing systems secured with fasteners.
- Comparing formulations during product development for self-sealing membrane technologies.
- Verifying specification compliance for membranes referenced in roofing system approvals and building code submittals.
- Manufacturing quality control, confirming consistent self-sealing performance around fasteners.
- Backing up manufacturer technical literature, warranty documentation, and code-evaluation reports.
Benefits
- Gives manufacturers an industry-recognized, standardized way to demonstrate a membrane’s self-sealing performance at fastener penetrations.
- Helps substantiate performance claims used in product data sheets and code evaluation reports.
- Makes it possible to compare different membrane formulations, fastener types, or installation configurations under consistent conditions.
- Catches potential leak pathways at fastener penetrations before a product ever reaches the field.
- Builds specifier and contractor confidence in performance under conditions that mimic real installation stress.
- Keeps the protocol flexible enough to tailor to a manufacturer’s specific product line and intended end use.
Our ASTM D7349 Testing Procedure
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.
4ASTM D7349 Test Parameters and Requirements
| 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 |
- Water Head Test Fixture – Holds the fastened specimen and keeps a controlled, standing column of water over the penetration point.
- Fasteners (per Product Specification) – Create the penetration through the membrane, matching field installation practice.
- Environmental/Cold Conditioning Chamber – Brings specimens to the controlled temperature the test protocol calls for.
- Calibrated Temperature Monitoring Equipment – Checks that conditioning and exposure temperatures stay within tolerance.
- Specimen Mounting Frame – Secures the specimen in place and isolates the fastener penetration area for water exposure.
- Timing Device – Tracks how long the exposure period runs.
- Inspection and Documentation Equipment – Examines and records evidence of water migration once the exposure period ends.
Equipment and Instrumentation Used for ASTM D7349 Testing
What You Receive: Test Report, Data, and Certification
- A formal test report covering specimen details, fastener type, conditioning parameters, and exposure duration.
- Clear pass/fail determinations for each specimen, based on observed water migration at the fastener penetration.
- Photos or written notes documenting the post-exposure inspection findings.
- Data suitable for manufacturer technical data sheets, code evaluation reports, or warranty documentation.
- Side-by-side comparative results when multiple fastener types, substrates, or formulations are evaluated together.
- A traceable, accredited record you can cite in specifications, submittals, or regulatory filings.
ASTM D7349 Roofing Fastener Seal Capability FAQs
ASTM D7349 determines the capability of an asphalt-based roofing or waterproofing material to seal around a fastener penetration and prevent liquid water from passing through the material under specified test conditions.
The method is intended for asphalt-based roofing and waterproofing materials that are penetrated by fasteners during installation. It can be used for product specifications and comparative evaluation of sealing performance.
Fastener penetrations can create potential pathways for water migration. Testing helps determine whether the material can limit water movement at the interface between the fastener and the roofing or waterproofing material, supporting evaluation of water-tightness in installed systems.
No. ASTM D7349 is a qualitative test method. It evaluates whether liquid water transmission occurs at the fastener penetration under the defined test conditions rather than providing a numerical water-transmission rate.
Yes. The standard does not prohibit testing materials after conditioning intended to simulate environmental stresses and strains. This can be useful when evaluating whether fastener-sealing capability is maintained after specified conditioning procedures.
Why Choose Infinita Lab for Roofing Fastener Seal Capability Testing
When your Roofing Fastener Seal Capability results have to hold up - for compliance, a customer audit, or an engineering decision - ASTM D7349 accuracy and an unbiased third-party report matter more than price. Infinita Lab routes your ASTM D7349 roofing fastener seal capability testing to ISO/IEC 17025-accredited U.S. partner labs with hands-on method experience, so you get defensible data, transparent reporting, and turnaround times built around your project deadline - not ours.
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