The Repair of Laminated Auto Glass Repair Standard (ROLAGS) has been completed and released for public comment.
Following is the first look at the draft standard, which has been jointly developed by the National Windshield Repair Association (NWRA) and the National Glass Association (NGA).
The deadline for comments is 45 days after announcement in ANSI Standards Action. Complete information on the process is available from the Secretariat staff: Leo Cyr, 2989 Coral Strip Parkway, Gulf Breeze, FL 32563 or firstname.lastname@example.org. All persons lodging an objection will be advised in writing of the disposition of the objection and the reasoning, and informed of the appeal process that exists.
October 15, 2005
Repair of Laminated Automotive Glass Standard (ROLAGS)
1.1 Windshield Repair is a permanent process that can be used to repair laminated auto glass that has been damaged.
1.2 There are two basic causes for damaged laminated auto glass.
1.2.1 Impact: This is the most common and occurs when an object strikes the
1.3 The introduction of chemicals and equipment in 1972 that were specifically designed to repair damage on laminated windshields has led to the subsequent development of sophisticated tools and superior resins. This in turn has enabled windshield repair to achieve the following, if performed by a trained professional.
1.3.1 Improve the optical clarity by reducing the visible damage
2.1 It is the intention of the Repair of Laminated Automotive Glass Standards Committee (ROLAGS) that this document:
2.1.1 Be used to consistently evaluate damages on laminated auto glass in order
to aid in the decision to repair or replace the glass
4.0 Glossary of Repair Terminology
4.1 Bullseye: Damage that is marked by a separated cone in the outer layer of glass that results in a dark circle with an impact point
4.2 Chip: Damage to the surface of the glass not associated with other types of damage
4.3 Combination break: Damage with multiple characteristics, i.e. star within
4.4 Crack: Single line of separation such as:
4.4.1 Short crack: A crack of 6 inches (150 mm) or less
4.5 Damage: A break in laminated glass
4.6 Ding: Non-technical term used to refer to a damage on laminated glass
4.7 Halfmoon: Partial bullseye
4.8 Impact Point: Actual location on the glass that was struck by an object (usually a stone) and resulting in damage
4.9 Laminated glass: Two or more layers of glass with a non-glass inner layer(s)
4.10 Legs: Short cracks that emanate from the break
4.11 Pit: Impact point from which a small piece of glass is missing
4.12 Repair: A process that removes air from a break in laminated glass and fills the break with a curable, optically matched resin
4.13 Star Break: Damage that exhibits a series of short cracks or legs that emanate from the impact point
4.14 Stone Break: Non-technical term often used to refer to damage on laminated glass.
4.15 Surface Pit: Damage to the surface of laminated glass that is not associated with other types of damage
5.0 Glossary: Other related terminology.
5.1 Driver's Primary Viewing Area (DPVA): An area on the exterior of the windshield:
5.2 Cosmetic blemish: A non-structural defect within the completed repair that does not impair the driver's vision
5.3 Refraction: The bending of light rays while passing from one medium to another
5.4 Resin: An organic material optically matched to the glass that when cured will fill the break or crack in the laminated glass
5.5 Wiper Sweep: An area on the windshield cleaned by a motorized arm with a flexible blade attached
5.6 Value added features: Items added to the windshield by the manufacturer such as rain sensors, heads-up displays (HUD), Night Vision, Global Positioning Systems (GPS) antennas, etc.
6.0 Damage Types and Repairable Dimensions
6.1 Bullseye: With a diameter no larger than one inch (25 mm)
6.2 Combination break: With neither break having a measurement greater than 3 3/8 inches x 2 1/8 inches (84 mm x 53 mm)
6.3 Crack: No longer than 18 inches (450 mm)
6.4 Half moon (Partial Bullseye): with a diameter no larger than one inch (25 mm)
6.5 Star break: with a damage no larger than 3 3/8 inches x 2 1/8 inches
Note: 3 3/8 X 2 1/8 inches (84 mm x 53 mm) is approximately the size of a
7.0 Repair Limitations
Both the location and the condition of the damage are important considerations in the decision to repair. Replacement is recommended under any of the following circumstances, i.e. do not repair:
7.1 Damage that penetrates both the inside and outside layer of a laminated
Note: One inch (25 mm) is approximately the size of a US 25 cent coin.
8.0 Procedures to be followed by the repair technician.
8.1 Auto glass repair is a process that removes the air from the break and fills the break with a curable, optically matched resin.
8.2 In order to insure the best possible repair, the technician should do the following:
8.2.1 Inspect the damage from both the inside and outside to determine if the
damage is repairable (See Sections 6.0 & 7.0).
9.0 Quality Inspection of the Finished Repair by the Technician
9.1 The repair shall be inspected from the driver's position within the vehicle.
10.0 Training of a Repair Technician
10.1 The technician shall be trained to this Standard.
Windshield repair is a permanent process that removes air from the break and fills it with a curable, optically matched resin. To accomplish this, it is recommended that a windshield repair system include the following:
11.1 Procedures to:
11.2 Equipment to:
11.3 Resins that will:
11.4 Suppliers of laminated automotive glass repair systems shall be required to pass the following tests:
Test pieces of categories (11.5.1) and (11.5.2) will be subjected to ANSI
11.5 Test pieces: AS-1 laminated glass of 6 mm nominal thickness prepared as
No reproduction, in print, electronic or any form without the expressed written permission of
Key Communications Inc. 540-720-5584.