What is the minimum recommended thickness for frameless glass shutters?

10 mm for toughened safety glass, but the final thickness depends on design calculations (Clause 4.1).

What is the acceptable tolerance for the verticality of a wall opening?

±3 mm per metre of height, with a maximum of ±6 mm overall (Table 1).

What type of glass must be used?

Toughened safety glass conforming to IS 2553 (Part 1) is specified (Clause 4.1).

What is the standard gap between two adjacent glass panels?

A gap of 2 mm to 3 mm is recommended to accommodate thermal movement and installation tolerances (Clause 5.3.3).

IS 15345

: 2003

Installation of Frameless Door and Window Shutters - Code of Practice

CurrentSpecializedCode of PracticeBIMArchitectural · Building Construction Practices incl. Painting, Varnishing

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This code provides guidelines for the installation of frameless glass door and window shutters. It covers the requirements for materials like glass and hardware, workmanship, dimensional tolerances, and sealing methods to ensure a safe, secure, and weather-resistant installation.

Installation of Frameless Door and Window Shutters - Code of Practice

Quick Reference Values

Minimum thickness of toughened safety glass10 mm

Permissible tolerance for verticality of opening± 3 mm per metre height

Permissible tolerance for level of opening± 3 mm in the first 3 m

Recommended gap between glass panels2 mm to 3 mm

Permissible tolerance on location of fittings± 1 mm

Practical Notes

Strict adherence to opening preparation and tolerances in Table 1 is critical for a successful installation and proper functioning.

Coordination between the civil contractor, glazing contractor, and hardware supplier is essential from the early stages.

Proper selection and application of sealants (Clause 7) are crucial to prevent water leakage, a common failure point in frameless systems.