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Building Materials in India by Climate and Region: A Practical Guide
India's five climate zones, what each asks of walls, roofs and windows, and the regional material families from alluvial brick and Deccan basalt to laterite, sandstone, Himalayan timber and bamboo.
Published on 10/17/202610 min read
There is no single best material for building a house in India. The right wall, roof and finish depend on which of India's five climate zones you are in, what the ground nearby yields (clay, basalt, granite, laterite, sandstone, timber or bamboo), and the earthquake, wind and soil conditions of your site. This guide covers all three and points you to the detailed post for your region.
About the rules and figures below: the climate zones and envelope limits come from the Bureau of Energy Efficiency's Eco-Niwas Samhita (ENS) 2024, which follows the National Building Code 2016. ENS is mandatory only for larger residential projects, so for a single house its limits are a benchmark, not a legal requirement. Advice on which material suits which zone is our guidance and is labelled as such. This hub quotes no prices: each city and material post gives indicative rates from the CPWD Delhi Schedule of Rates or the state PWD Schedule of Rates, with the year.
The five climate zones, and how to find yours
BEE's residential code, Eco-Niwas Samhita 2024, divides India into five zones and lists the zone for major cities in its Annexure 9. A few results surprise people: Pune is warm-humid, not composite; Hyderabad and Jaipur are composite; Surat and Kota are hot-dry; and Bengaluru is the only listed city in the temperate zone.
- Hot-dry: Jodhpur, Jaisalmer, Bikaner, Ahmedabad, Vadodara, Surat, Kota, Solapur.
- Warm-humid: Mumbai, Pune, Panaji, Mangaluru, Kochi, Chennai, Kolkata, Bhubaneswar, Guwahati.
- Composite: New Delhi, Chandigarh, Jaipur, Lucknow, Patna, Bhopal, Indore, Nagpur, Hyderabad.
- Temperate: Bengaluru.
- Cold: Srinagar, Leh, Manali, Kullu, Shillong, Ooty.
Composite covers most of the northern and central plains on BEE's map, and it is the hardest zone to design for. BIS's SP 41 handbook describes it well: the northern plains are hot and dry from April to June, warm and humid from July to September, and cold from December to February, so a house has to cope with all three.
What each zone asks of walls, roofs and windows
ENS applies the same roof test in every zone, and the same wall test everywhere except the cold zone. The roof must have a thermal transmittance (U-value, the rate heat passes through) of no more than 1.2 W/m²K. Walls and windows together must keep the residential envelope transmittance value (RETV, heat gained per square metre of envelope) to 15 W/m² or less. In the cold zone, walls instead need a U-value of 1.8 W/m²K or less, to keep heat in. ENS also sets a minimum openable window area by zone, shown in the first column below.
| Zone | Minimum openable window area (ENS, % of carpet area) | Walls (our guidance) | Roof (our guidance) |
|---|---|---|---|
| Hot-dry | 10% | Thick, heavy walls that delay the afternoon heat; light outer colours; small, shaded openings | Insulated or double roof with a reflective top |
| Warm-humid | 16.66% | Shaded walls that shed rain and dry fast; openings on opposite sides for cross-breeze | Deep overhangs; pitched or well-drained roofs; insulation under flat slabs |
| Composite | 12.5% | Mass plus insulation, which helps in both summer and winter | Insulated roof; overhangs sized to cut summer sun but admit winter sun |
| Temperate | 12.5% | Moderate mass; shade the west wall | Insulation still pays: the 1.2 W/m²K roof limit applies here too |
| Cold | 8.33% | Insulated, airtight walls; glazing facing the winter sun | Insulated roof; a pitch that sheds rain and snow |
For flat roofs, ENS also repeats the ECBC 2017 cool-roof rule for roofs sloping less than 20 degrees: an initial solar reflectance of at least 0.6 and emittance of 0.9. ENS is clear that a cool roof does not replace insulation. For the wider picture of green codes and ratings, see our guide to IGBC, GRIHA, LEED and ECSBC.
The house above shows the composite-zone kit in practice. In its project notes on MOA, Atelier Shreenu describes thick load-bearing walls for insulation, ventilators above doors and windows to let hot air out, and verandas roofed with stone slabs on steel girders instead of cast concrete.
The regional material families
Climate tells you what the building has to do; geology tells you what is close at hand. Here are seven broad families, numbered as in the zone table above. Each will get its own post in this series.
1. Alluvial plains: fired clay brick
Across the Indo-Gangetic plains, fired clay brick is the default walling. A Centre for Science and Environment paper reported by Down To Earth estimated that 65 per cent of India's bricks are made in these plains, and that kilns strip fertile topsoil. Fly ash bricks and AAC blocks are the usual alternatives, and this series' wall-materials post compares them. For what a brick-and-RCC house costs here, see construction cost in Delhi NCR and in Lucknow.
2. Deccan basalt
The Deccan basalt covers more than 500,000 sq km of the western margin of peninsular India, according to the IUGS geoheritage listing, so across much of Maharashtra the stone underfoot is basalt. Flaggy limestones from the region, traded as Shahabad stone (Karnataka) and Kadapa stone (Andhra Pradesh), are common floor slabs, as the Indian Bureau of Mines notes. See construction cost in Pune for the local numbers.
3. Granite plateau
The south is granite country. The Indian Bureau of Mines puts Karnataka and Rajasthan at about 20 per cent each of India's granite resources, and says the dimension-stone industry matters most to the economies of Tamil Nadu, Andhra Pradesh, Telangana, Karnataka and Rajasthan. It also calls granite the most sought-after building and decorative stone, for its strength, polish and resistance to weathering. Local costs: Bengaluru, Hyderabad and Chennai.
4. Laterite coast
The word laterite was first used for the iron-rich deposits of the Malabar coast of Kerala and Dakshina Kannada, says the Indian Bureau of Mines. It is soft when quarried, so it can be cut straight into blocks, and it hardens on exposure to air. The same source warns that it cannot take heavy pressure and suits light structures and boundary walls, and that IS 3620:1979 covers laterite masonry. IBM adds that suitable waterproofing treatments improve it, which matters on this wet coast. See construction cost in Kochi and building permits in Kochi.
5. Rajasthan sandstone and Kota stone
Rajasthan's sandstone, from the Vindhyan and Trans-Aravalli formations, is exposed over nearly 35,000 sq km in districts including Dholpur, Bharatpur, Karauli, Kota, Bundi and Bhilwara, with more around Jodhpur and Bikaner. Kota stone is not sandstone but a flaggy limestone from Kota district, and Jaisalmer has its own yellow limestone, all per the Indian Bureau of Mines. Most of this belt is hot-dry or composite, and in our view that suits heavy stone walls and stone-slab floors. Local numbers: construction cost in Jaipur and Ahmedabad, and for approvals, 90-A conversion and plan approval in Jaipur.
6. Himalayan stone and timber
Himachal's kath-kuni walls lace dry stone masonry with timber courses. A 2023 study by Ashutosh Kumar and Vasilis Sarhosis, listed by IIT Mandi, found that symmetrical geometry, lintels over openings and interlocking corners drive their earthquake resilience. An earlier survey by the same group estimated that about 70 per cent of homes and heritage buildings in the region are unreinforced masonry, and flagged that heavy upper storeys weaken some kath-kuni houses. Himachal is also a slate producer, and slate roofing tiles are covered by IS 6250, per the Indian Bureau of Mines yearbook above.
7. Northeast bamboo and timber
The Assam-type house uses a timber frame with walls of bamboo and ikra reed, plastered with mud or lime, under a light pitched roof that is now usually corrugated metal. The World Housing Encyclopedia report by IIT Guwahati authors says these houses have performed extremely well in past earthquakes, because they are light, flexible and regular, but notes fire risk, posts that sink when not anchored, and that the type is now built mostly in rural areas.
Soil, earthquakes and wind: the checks that override taste
Earthquakes. The current code is IS 1893 (Part 1):2016, which divides India into Zones II to V. Zone V covers areas liable to intensity IX and above on the MSK scale, as the BMTPC Vulnerability Atlas explains. BIS issued a 2025 revision with a new Zone VI in November 2025, but withdrew it in March 2026 on the Cabinet Secretariat's advice, so builders continue on the 2016 standard, as seismologist C P Rajendran wrote in ETV Bharat. Your structural engineer should confirm the zone and design for it, whatever the walling material.
Wind and cyclones. IS 875 (Part 3) uses basic wind speeds from 33 to 55 m/s, and the cyclone-prone coasts fall in the 50 and 55 m/s zones, per the same BMTPC atlas. On the east coast especially, roof fixings, overhangs and sheeting need designing, not guessing.
Soil. A soil investigation decides the foundation, and it matters more than the brand of block. Ask for it before you finalise the plinth design, and check the plot itself first with our 12 checks before buying land.
Where to check material prices
For indicative rates, use the CPWD Delhi Schedule of Rates (on the CPWD website) or your state PWD Schedule of Rates, and note the year. Dealer quotes and listing sites change weekly and vary by city. For the whole-house budget, see the state-wise construction cost breakdown or try the MOA home cost calculator.
Mistakes to avoid (our guidance)
- Copying a design from another zone. A glass-fronted box that is comfortable in Bengaluru is likely to overheat in Jodhpur.
- Treating a cool roof as insulation. A white coating helps; it does not meet the 1.2 W/m²K roof benchmark on its own.
- Using a weak stone as a structure. Laterite and some sandstones need the right loads, thickness and design.
- Judging a product by its brochure. Check the BIS mark, licence number and a dated test certificate instead.
FAQ
Which material is best for house construction in India?
No single material wins everywhere. Our guidance: heavy stone or brick walls and an insulated roof in the hot-dry west; shade, ventilation and damp-resistant walls on the humid coasts; mass plus insulation in the composite north; insulation and earthquake-safe structure in the hills.
Which building materials suit a hot climate?
For hot-dry places, our guidance is thick masonry walls (stone, brick or blocks), a light-coloured exterior, small shaded windows and an insulated roof with a reflective top. For hot-humid places, shade and cross-ventilation matter more than wall mass.
What are the traditional building materials of India?
Fired clay brick in the Indo-Gangetic plains, basalt in the Deccan, granite in the south, laterite on the west coast, sandstone and Kota limestone in Rajasthan, stone and timber in the Himalaya, and bamboo with timber in the Northeast.
Is Eco-Niwas Samhita compulsory for an independent house?
Usually not. ENS 2024 applies to residential buildings with a connected load of 100 kW or contract demand of 120 kVA, or a plot of 3,000 sq m, though states can change the threshold. Its limits are still a sound target for any house, and Annexure 9 has a zone map if your town is not in the table above.
Materials should follow the site and climate, not a catalogue. Find an architect on MOA who can choose them for your plot.
Sources
- Bureau of Energy Efficiency: Eco-Niwas Samhita 2024, sections 2.2 and 5.2.1, Annexures 8 and 9 (accessed 16 Oct 2026)
- Bureau of Energy Efficiency: publications page listing ENS 2024, ECSBC 2024 and ECBC 2017 (accessed 16 Oct 2026)
- Bureau of Indian Standards (Public.Resource.Org copy): SP 41:1987, Handbook on Functional Requirements of Buildings, Part 1 Climatology (accessed 16 Oct 2026)
- Building Materials and Technology Promotion Council: Vulnerability Atlas of India, third edition, background note (accessed 16 Oct 2026)
- ETV Bharat: C P Rajendran, A Bold Policy Reversed: The Withdrawal of India's 2025 Seismic Code, 11 March 2026 (accessed 16 Oct 2026)
- Indian Bureau of Mines: Indian Minerals Yearbook 2019, Laterite (accessed 16 Oct 2026)
- Indian Bureau of Mines: Indian Minerals Yearbook 2020, Slate, Sandstone and Other Dimension Stones (accessed 16 Oct 2026)
- Indian Bureau of Mines: Indian Minerals Yearbook 2020, Granite (accessed 16 Oct 2026)
- IUGS International Commission on Geoheritage: Deccan Basalt (accessed 16 Oct 2026)
- World Housing Encyclopedia: Hemant Kaushik and K S Ravindra Babu, Assam-type House, India, report 154 (accessed 16 Oct 2026)
- IIT Mandi: Kumar and Sarhosis, Kath-Kuni architecture: field investigations and material characterisation, 2023 (accessed 16 Oct 2026)
- White Rose Research Online: Sharma, Kumar and Sarhosis, Evaluating the Seismic Performance of Domestic and Historical Masonry Structures in Himachal Pradesh, 2021 (accessed 16 Oct 2026)
- Down To Earth: Brick kilns destroying fertile top soil, 11 March 2015 (accessed 16 Oct 2026)
- Central Public Works Department: CPWD website, publications including the Delhi Schedule of Rates (accessed 16 Oct 2026)