How To Fix Ceiling Holes – Causes, Repair & Prevention
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Summary – Fix Ceiling Holes
Causes of Ceiling Holes – Holes can occur due to plumbing leaks, accidental footfalls, or ageing ceilings. The video demonstrates various repair techniques.
Electrician-Caused Holes – Often, electricians cut into ceilings for wiring but leave them unrepaired. These must be carefully fixed without damaging cables.
Choosing the Right Screws – Short, corrosion-proof screws are preferred to avoid hitting electrical cables and ensure stability.
Marking Joist Positions – Before placing plasterboard, marking joist positions helps in securely screwing the patch into place.
Foam Application & Drying – Expanding foam fills gaps; water spraying accelerates curing and improves adhesion.
Trimming Foam Before Plastering – Excess foam should be cut back to avoid rough patches in the plaster finish.
Scrim Tape vs. Plaster – Scrim tape can sometimes cause ghosting, so joint-filling compounds or multi-finish plaster are recommended for a smooth finish.
Lath & Plaster Ceilings – These older ceilings can detach over time. Applying diluted PVA helps rebind them and prevents sudden collapses.
Preventing Ceiling Collapse – Pouring a PVA mixture over old plaster from above (if accessible) helps to reinforce weak sections and preserve decorative mouldings.
Insights Based on Numbers – Fix Ceiling Holes
▶ 3:1 PVA to Water Ratio – A mix of three parts water to one part PVA can be poured over old lath-and-plaster ceilings to strengthen them.
▶ Short Screws are Essential to fix ceiling holes, Longer screws risk piercing electrical cables, leading to extensive repairs.
▶ Multiple Coats of Paint & Plaster – Applying two coats ensures a polished, seamless ceiling finish.
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