Скачать или смотреть Cracked Render? Watch This Before You Start Repairing

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   • How to Render Exterior Walls - Beginner Tips  

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🛠️ Tools & Products Used from ‪@ewistore‬

Topcoat Primer (EWI-333) - 7kg
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Render & Sponge Floats
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Summary

🧱 Identifying the Problem
Roger examines a gable wall that needs redecorating, noting minor cracks likely due to slight structural movement during a previous extension. The render isn’t loose, but there’s some texture variation and minor cracking.

🔧 Preparation Steps
Cracks are opened up using an angle grinder to inspect their depth. Roger determines the cracks are only in the render, not the brickwork. He uses a fungicidal wash to clean the wall and then applies a primer from the EWI shop to ensure adhesion.

🧪 Repairing Cracks
A mix of sand, cement, and SPR (a rubbery bonding agent) is applied to the cracks. This mix remains flexible, allowing it to withstand minor movements without re-cracking.

🧰 Application of Silicone Render
A 1.5mm silicone render is applied with a trowel. This product is known for its flexibility and durability. It’s essential to apply thinly and work systematically to maintain a wet edge, preventing visible joins or dry spots.

🌤️ Environmental Considerations
Roger notes the importance of temperature: hot days make it hard to manage the render. He aims to work in moderate conditions and mentions that optimal weather for such work is around 18°C.

🤝 Collaborative Effort
On day three, Roger is assisted by Ben to maintain a continuous application. They use a plastic float to smooth the render and fill gaps. Small adjustments, like a light spray of water, help maintain the workability of the render.

🧾 Material and Cost Efficiency
Roger highlights that two tubs of render were sufficient for the entire gable wall, including areas around windows. He points out that the cost is comparable to masonry paint, making it an economical choice.

🏁 Final Result and Reflections
The project concludes successfully. Despite minor flaws like dry edges, the finished result is visually acceptable. Roger invites viewer feedback and discussion in the comments.

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