| Title | कांच छत्र (Glass Canopy)Rare Kā̃ca chatra Glass Canopy |
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| Description | कांच चंदवा - Kān̄ca Candavā (Glass Canopy) represents a modern adaptation of traditional *chattra* (parasol) forms in Indic architecture, utilizing glass as a primary structural and aesthetic element. Typically composed of soda-lime glass, its density is approximately 2.5 g/cm³ with a tensile strength of 40-70 MPa [1]. The coefficient of thermal expansion is around 8-9 x 10⁻⁶ /°C, influencing design considerations in regions with significant temperature variations. While historical equivalents using naturally occurring transparent minerals like mica (*abhraka*) existed, modern glass canopies offer superior transparency and weather resistance. The raw materials, silica sand (*vāluka*), soda ash, and limestone, are sourced from various regions within the Indian subcontinent. Durability is a key concern, requiring specialized tempered or laminated glass to withstand environmental stresses. Conservation efforts for existing glass canopies involve regular cleaning and inspection for cracks or delamination. Restoration may necessitate sourcing compatible glass compositions and employing skilled artisans familiar with traditional glazing techniques. |
| Also Known As | Glass Canopy Kā̃ca chatra Glass Canopy Glass Awning Transparent Canopy कांच चंदवा शीशे का छत्र पारदर्शी छत्र काच वितान |
| Tags | Glass Canopy Kanch Chandava Glass Canopy Glazing Awning |
| Material ID | INHFMAT-150468730-20-11-25-KC |
| URI | https://www.inheritage.foundation/aat/material/glass-canopy |
| API Endpoint | https://inheritage.foundation/api/v1/aat/materials/glass-canopy |
| Total Sites | 1 |
| Primary Sites | 1 |
| Created | November 20, 2025 |
| Last Updated | November 28, 2025 |
| Types | Glass Silicate |
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| Regions | South Asia India |
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| Time Periods | 20th Century CE 21st Century CE |
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| Sources | Glass manufacturers |
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| Properties | Density: ~2.5 g/cm³ Tensile Strength: 40-70 MPa Coefficient of Thermal Expansion: 8-9 x 10⁻⁶ /°C Refractive Index: ~1.5 |
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| Uses | Weather protection for structures Natural light enhancement in buildings Architectural aesthetic element |
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| Materials | Steel Aluminum Silicone Sealant |
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| Styles | Modern Architecture |
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| Categories | Modern Temples Public Spaces |
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| Notes |
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| Title | Type | Notes |
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| Glass Technology | Journal | Properties and applications of glass |
| Site Name | Status | Usage | Confidence |
|---|---|---|---|
| Shri Sanatan Hindu Mandir Wembley | Primary | Flooring | 100% |