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IS 16071:2013 is the Indian Standard (BIS) for polyvinyl chloride (pvc) sheets for waterproofing - specification. This standard specifies the requirements for flexible Polyvinyl Chloride (PVC) sheets intended for use in waterproofing of buildings and other civil engineering structures. It covers material composition, physical and mechanical properties, dimensions, performance criteria like water tightness, and methods for sampling and testing.
Specifies requirements for flexible polyvinyl chloride (PVC) sheets used as waterproofing membranes.
Overview
Status
Current
Usage level
Frequently Used
Domain
Materials Science — Waterproofing and Damp Proofing
ASTM D4434 / D4434M - 15(2021)ASTM International, USA
HighCurrent
Standard Specification for Poly(Vinyl Chloride) Sheet Roofing
Covers reinforced and unreinforced PVC sheets specifically for roofing applications, a major use case for IS 16071.
EN 13956:2012CEN (European Committee for Standardization), Europe
HighCurrent
Flexible sheets for waterproofing - Plastic and rubber sheets for roof waterproofing - Definitions and characteristics
Specifies requirements for plastic (including PVC) sheets for roof waterproofing, aligning with the roofing scope of the IS code.
EN 13967:2012CEN (European Committee for Standardization), Europe
MediumCurrent
Flexible sheets for waterproofing - Plastic and rubber damp proof sheets including plastic and rubber basement tanking sheets - Definitions and characteristics
Covers PVC sheets for below-ground and damp-proofing, aligning with the civil engineering and non-roofing building applications of IS 16071.
Key Differences
≠IS 16071 specifies fixed minimum performance values, whereas the EN standards often use a 'manufacturer's declared value' system where the product must meet the properties declared by the manufacturer (within a certain tolerance).
≠The low-temperature flexibility requirement is significantly more stringent in ASTM D4434 (-40°C) compared to IS 16071 (-20°C), reflecting different climatic design considerations.
≠IS 16071 specifies a UV resistance test duration of 1000 hours. EN 13956 has a much longer requirement for the highest durability rating (e.g., 5000 hours), indicating different approaches to accelerated weathering tests.
≠The classification of sheet types differs. IS 16071 uses Type I (unreinforced) and Type II (reinforced), while ASTM D4434 uses types like II (non-reinforced), III (fabric-reinforced), and IV (fleece-backed), which is a more granular classification.
Key Similarities
≈All standards are based on specifying requirements for flexible sheets made primarily from Polyvinyl Chloride (PVC) plasticized for waterproofing applications.
≈The concept of using an internal reinforcement (typically polyester or glass fibre scrim) to enhance dimensional stability and mechanical properties like tensile and tear strength is common across all standards for reinforced sheets.
≈A core set of physical properties are evaluated in all standards, including tensile strength, elongation at break, tear resistance, dimensional stability, and low-temperature flexibility (cold bend).
≈All standards require tests for water resistance, including water absorption and/or water tightness, to ensure the fundamental waterproofing capability of the membrane.
Parameter Comparison
Parameter
IS Value
International
Source
Low Temperature Bend
No cracks at -20 °C
No cracks at -40 °C
ASTM D4434
Tensile Strength (Reinforced, Polyester)
≥ 1000 N / 50 mm
≥ 990 N / 50 mm (223 lbf)
ASTM D4434
Tear Resistance (Reinforced)
≥ 250 N
≥ 200 N (45 lbf)
ASTM D4434
Water Absorption (% by mass)
≤ 1.0%
≤ 3.0%
ASTM D4434
Resistance to Static Puncture (on rigid substrate)
Not specified in IS 16071
Pass at 15 kg load (method L-A or L-B)
EN 13956
Thickness Tolerance
± 5% of nominal thickness
-5% to +10% of declared nominal thickness
EN 13956
Elongation at Break (Unreinforced)
≥ 250%
≥ 200%
ASTM D4434
⚠ Verify details from original standards before use
Key Values7
Quick Reference Values
Minimum nominal thickness1.2 mm
Tolerance on nominal thickness± 5 %
Minimum tensile strength (longitudinal)12 MPa
Minimum elongation at break (longitudinal)200 %
Water penetration test pressure60 kPa for 24 h
Low temperature flexibility test-20 °C (No cracking)