If you’ve spotted cracks in the external render of your Oldham home, you may already be experiencing the effects indoors — damp patches, peeling paint, or cold walls.
Cracked render is one of the most common causes of penetrating damp, especially on exposed or weather-facing walls.
At Weather Wise Solutions, we assess both the internal symptoms and the external defects to stop damp at the source — not just treat the inside.
🌧️ How Cracked Render Causes Damp
Render is designed to act as a protective skin for your external walls. When it cracks, that protection fails.
Rainwater is drawn into the wall, leading to:
-
Damp patches on internal walls
-
Heat loss and cold spots (thermal bridging)
-
Blown plaster or flaking paint
-
Black mould forming around affected areas
Oldham properties, particularly those facing prevailing winds, are more vulnerable to driving rain penetration.
🔍 Signs Your Damp Is Caused by Render — Not Rising Damp
Homeowners often mistake penetrating damp for rising damp, but there are key differences:
Penetrating Damp from Render Failure:
-
Appears higher up the wall or in isolated patches
-
Worsens after rainfall and improves in dry weather
-
Common on one side of the property (usually weather-facing)
-
Paint bubbles or walls feel cold and damp to touch
Rising Damp:
-
Always starts at ground level
-
Forms tide marks up to 1 metre high
Correct diagnosis prevents unnecessary internal treatments.
🧰 How We Fix Damp Caused by Failed Render
At Weather Wise Solutions Limited, we repair the external issue before treating the inside. Our approach includes:
✅ Moisture & thermal imaging – to locate water ingress points
✅ Stripping back failed render – only where necessary, to expose damaged areas
✅ Re-rendering with breathable, flexible systems – to allow moisture to escape and prevent future cracks
✅ Internal re-plastering (if needed) – using breathable salt-resistant systems
We use trusted breathable systems from PAM Ties and Wycamol to protect both the structure and the finish.
🏡 Why Oldham Homeowners Trust Us
As a family-run damp and ventilation company, we prioritise long-term solutions rather than quick surface fixes.
We are proud members of the Federation of Damp, the Damp Proofing Association and Trust A Trader
Our CPD-qualified specialists ensure repairs are carried out to the highest standard, with insurance-backed guarantees on approved works.
👉 Book your free external damp and render assessment in Oldham:
https://weatherwiseuk.co.uk/pages/contact