| Title | ताम्र पत्र छत (Copper Roofing)Rare Tāmra patra chata Copper Roofing |
|---|---|
| Description | तांबे की छत (Tambe Kee Chhat), or *Tamra Chhat* (ताम्र छत) in Sanskrit, meaning "copper roof," is a roofing system employing copper sheets, historically significant in Indic architecture [1]. Copper, primarily sourced from mines across the Indian subcontinent, including regions of Rajasthan and Jharkhand, was processed through smelting and hammering into malleable sheets. Its chemical composition is predominantly Cu, exhibiting a density of 8960 kg/m³ and tensile strength of 220 MPa. The material's excellent corrosion resistance stems from the formation of a protective patina, a process of oxidation resulting in a characteristic greenish hue. This *harita varna* (हरित वर्ण), or green color, is aesthetically valued and enhances durability. Traditional construction methods involved interlocking or overlapping sheets, often seen in temples and palaces built during the Maurya, Gupta, and Rajput periods. Conservation efforts prioritize preserving the patina while addressing structural integrity. Restoration requires careful matching of copper alloys to maintain visual harmony and prevent galvanic corrosion. Thermal expansion (17 x 10^-6 /°C) necessitates expansion joints in large roofs. |
| Also Known As | Copper Roofing Tāmra patra chata Copper Roofing Copper Roof Copper Clad Roof ताम्र छत तांबे की छत ताम्र आच्छादन ताम्र पटल छत செப்பு கூரை (Tamil) రాగి పైకప్పు (Telugu) ತಾಮ್ರದ ಛಾವಣಿ (Kannada) ചെമ്പ് മേൽക്കൂര (Malayalam) |
| Tags | Copper Roofing Copper Roof Metal Roofing Roofing Material Copper तांबे की छत Tambe Kee Chhat Patina Weatherproofing Heritage conservation |
| Material ID | INHFMAT-558411276-20-11-25-TC |
| URI | https://www.inheritage.foundation/aat/material/copper-roofing |
| API Endpoint | https://inheritage.foundation/api/v1/aat/materials/copper-roofing |
| Total Sites | 1 |
| Primary Sites | 0 |
| Created | November 20, 2025 |
| Last Updated | November 28, 2025 |
| Types | Metal Roofing Material Cladding Material |
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| Regions | South Asia India |
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| Time Periods | Ancient Medieval Modern (19th-21st Century) |
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| Sources | Copper mines Metal suppliers Recycled copper |
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| Properties | Tensile strength: 220 MPa Density: 8960 kg/m³ Thermal expansion coefficient: 17 x 10^-6 /°C Corrosion resistance: Excellent Malleable Ductile Naturally develops patina |
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| Uses | Roofing for temples Roofing for heritage buildings Flashing for weatherproofing Gutters for water management Decorative architectural elements Cladding |
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| Materials | Wood (for structural support) Fasteners (nails, screws, rivets) Solder (for joining copper sheets) Insulation materials |
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| Styles | Traditional Indian architecture European Colonial architecture Modern architecture Gothic Revival architecture |
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| Categories | Temple roofing Heritage buildings |
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| Notes |
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| Title | Type | Notes |
|---|---|---|
| Indian Minerals Yearbook | Government Publication | Information on copper production in India |
| Site Name | Status | Usage | Confidence |
|---|---|---|---|
| Hindu Temple of Ottawa-Carleton Ottawa | Secondary | Walls | 100% |