Windows, whether ancient or modern, often require protection from the elements and from malicious damage.
Environmental Protective Glazing (also known as ‘Isothermal’ Glazing) protects stained glass from deterioration through the action of moisture. This reversible intervention effectively preserves endangered glass whilst keeping it within the architectural setting, and has been adopted by the majority of stained glass conservators in Great Britain.
Mechanical protection, where required, is generally provided using wire guards. Where both environmental and mechanical protection are required, options include environmental protective glazing using various types of laminated glass and standard external protective glazing in combination with wire guards.
Secondary glazing, through the installation of an additional glazing layer, can also be used for mechanical protection, and to improve both heat insulation and sound-proofing of a building whilst preserving historic leaded glazing.
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