Co-Dunkall Prepare Suffolk Extension for Screed with RIW Red DPM and PIR Insulation – 36m²
Co-Dunkall recently completed the preparation works for a 36m² home extension in Suffolk, ensuring the floor build-up was perfectly ready for a high-quality screed installation. As always, our focus was on precision, compliance, and delivering a clean, reliable substrate for the next stage of construction.
Project Overview
The homeowner required a warm, dry, and durable floor structure suitable for their new extension. To achieve this, our team carried out full preparation works including damp-proofing and insulation placement prior to screeding.
What We Did
🔴 Installation of RIW Red DPM
We began by laying RIW Red Damp Proof Membrane across the entire 36m² area. This heavy-duty DPM provides:
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A robust barrier against rising moisture
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Excellent puncture resistance
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A clean and stable base for the insulation layer
Correct DPM installation is essential for preventing future damp issues and ensuring the longevity of the screed and finished floor coverings.
🟡 PIR Insulation Fitted
Next, we installed PIR insulation boards to create a thermally efficient floor. PIR offers:
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High thermal resistance, improving overall energy efficiency
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A rigid, stable surface for screed application
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Compliance with current building regulations
All boards were tightly butted, taped, and prepared to eliminate cold bridging.
Final Prep for Screed
With the membrane and insulation locked in place, the area is now fully prepped and ready for our screed team to lay the chosen floor screed. This level of preparation ensures:
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Optimal screed performance
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A uniform finish
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Minimal risk of cracking or movement
Another Quality Job from Co-Dunkall
Whether it’s a small extension or a full property development, Co-Dunkall pride ourselves on delivering precise, high-standard floor preparation work. This Suffolk project is another example of our commitment to clean workmanship, durability, and efficiency.
If you’re planning an extension or renovation and need professional screed preparation, get in touch with our team today.
📞 Contact us to discuss your next project.
