Can A Cob House Get Wet? Protecting Your Natural Home

“What are the consequences when a cob wall becomes wet? In the context of cob construction, it’s important to note that modern materials like cement renders, plasters, masonry paints, and emulsions can inadvertently exacerbate the issue by sealing moisture within the wall. This trapped moisture can lead to various structural problems over time. When the moisture content surpasses 12%, the strength of the cob substantially decreases, making it more vulnerable to damage and compromising its integrity.”

When constructing a cob house, one important consideration is how to protect its exterior walls from moisture. If you prefer not to use traditional paint for this purpose, an alternative solution is to employ waterproofing techniques. An excellent product for this task is Outdoor Defense Oil, available from the Real Milk Paint Co. This oil-based solution provides a protective barrier against water intrusion, helping to safeguard your cob house from the damaging effects of moisture. By applying Outdoor Defense Oil, you can enhance the longevity and durability of your cob structure, ensuring it stands strong against the elements for years to come. (Note: The publication date of the original passage is December 2, 2022.)

• Labour intensive.
• Relatively slow to build.
• Obtaining a mortgage from lending institutions is difficult.
• Cob walls cannot be laid in wet or freezing weather.
• Insects, notably termites and small rodents can burrow into the walls and weaken them.