A flat mud roof symbolises simplicity and effectiveness in natural building roof techniques, and builders can construct it without using cement and steel bars. As a result, it represents one of the most straightforward methods in traditional roofing practices, both in India and globally. Its widespread popularity stems from its versatility and compatibility with locally sourced materials, promoting sustainable building practices.

The prevalence of flat mud roofs is widely apparent throughout India, manifesting in various locales from the southern state of Kerala to the northern territories of Himachal Pradesh and Ladakh. A flat mud roof construction involves utilising nearby resources to produce a flat roof surface, ensuring a sustainable and cost-effective solution. This roofing style serves as a weather-exposed roofing option and an intermediate or internal roofing solution, ideal for multi-story structures. Understanding the reasons for keeping a flat mud roof exposed or covered can be determined by examining the local climatic conditions. With its timeless quality and commitment to sustainable building practices, a flat mud roof is an excellent option for those looking to make a lasting impact on the environment.

What you'll learn

Section 1 - Introduction, journey, experimentations and what’s needed

• Introduction to Flat Mud Roof
• What is a flat mud roof
• Thanal’s Journey
• Experimentations
• Akhila Surenderan’s Home
• Kalari Flat Mud roof
• Materials required for flat mud roof
• Tools Used
• Walls - Type of walls
• Structure design for a flat mud roof

Section 2 - How to build the structure for a flat mud roof?

• Wall Plate - Definition, types
• Beams - How can bamboo be used, designed, and other materials
• Raftes- Functions, design, alternate method with only rafters
• Holding Surface - Purpose, materials used, an alternate method
• Shuttering - Function and materials used

Section 3 - Mud mix preparation & filling, conclusion

• Vapour Barrier - Purpose, Types of leaves and other materials
• Mud Mix - Mix ratio of mud lime and plant admixtures, methods of mixing and fermentation
• Filling the mud mix up on the roof
• Adding a dry mix layer
• Prototype and testing
• Conclusion

Section 4: Finishes

• Lime plaster
• Surkhi lime finish
• Cowdung finish
• Terracotta tile 

Section 5: References and What’s next?

Section 6: Bonus Content (30 minutes)
Learn about different roofing techniques, and choose one that fits your natural building.

Gain knowledge on this traditional roofing practice that has stood the test of time. Enroll now and take the first step in mastering the art of flat mud roofing.