| Title | कांच वातायन (Glass Skylight)Rare Kāñca vātāyana Glass Skylight |
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| Description | Kān̄ca Skā'īlā'īṭa (Glass Skylights), or *śīśe kā rośanadāna* in Hindi, are architectural elements for natural lighting. Modern applications extend traditional *jharokha* concepts. The primary material, glass, is derived from silica sand (*bālusikā*) sourced from riverbeds across the Indian subcontinent. Its chemical composition is predominantly SiO2, with additives influencing color and properties. Density ranges from 2.4-2.8 g/cm³ [1]. Tensile strength varies (40-70 MPa) based on processing (tempering, lamination). Thermal conductivity is 0.8-1.0 W/mK. While not prevalent in ancient Indic architecture, glass, known as *kāca* in Sanskrit, was utilized in decorative elements. Modern skylights address energy efficiency through controlled light transmittance (80-90%). Conservation involves addressing weathering, cracking, and ensuring structural integrity. Restoration requires compatible glass types and adherence to heritage guidelines. Future research should focus on bio-based glass alternatives for sustainable construction. |
| Also Known As | Glass Skylight Kāñca vātāyana Glass Skylight Skylight Roof Window शीशे का रोशनदान कांच का झरोखा आकाशदीप तमिल: கண்ணாடி மேல் ஒளிக்கூண்டு तेलुगु: గాజు స్కైలైట్ कन्नड़: ಗಾಜಿನ ಸ್ಕೈಲೈಟ್ |
| Tags | Glass Skylight Roof Window Natural Light Modern Architecture |
| Material ID | INHFMAT-658107131-20-11-25-KY |
| URI | https://www.inheritage.foundation/aat/material/glass-skylights |
| API Endpoint | https://inheritage.foundation/api/v1/aat/materials/glass-skylights |
| Total Sites | 1 |
| Primary Sites | 1 |
| Created | November 20, 2025 |
| Last Updated | November 28, 2025 |
| Types | Glass Glazing |
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| Regions | India |
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| Time Periods | 21st Century |
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| Sources | Glass Manufacturing Plants |
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| Properties | Tensile Strength: 40-70 MPa (depending on type) Density: 2.4-2.8 g/cm³ Thermal Conductivity: 0.8-1.0 W/mK Light Transmittance: 80-90% |
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| Uses | Natural Lighting Architectural Feature Daylighting |
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| Materials | Aluminum (for framing) Silicone Sealant |
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| Styles | Modern Architecture |
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| Categories | Modern temples Community halls |
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| Notes |
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| Title | Type | Notes |
|---|---|---|
| Glass Technology Handbook | Book | Properties and applications of glass |
| Site Name | Status | Usage | Confidence |
|---|---|---|---|
| Sri Sivan Temple Singapore | Primary | 100% |