Plaster Repair

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Old House Journal's compendium of articles about how to repair plaster on walls and ceilings in old houses, including cracking, bulging walls, delamination, and key failure, where plaster has broken loose from its grip on the lath substructure.

SEE ALSO:  Restoration Projects |  Wallpapering

Delaminating plaster ceiling

How to Fix Plaster Ceilings

By using modern materials and a traditional technique, it is possible to repair plaster ceilings that are cracking and delaminating. Here is a step-by-step guide to how to fix plaster ceilings in your old house.

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Plaster 101: DIY Repairs, Tools & Techniques

A look at the common problems with plaster in historic homes, and which tools and DIY techniques are most effective for plaster repair.

Knife and moulding technique

Knife and Mould Plaster Technique Explained

A mould knife is a metal template cut with the reverse profile of the moulding to be created or restored.

Step One Making a Medallion

Making a New Decorative Plaster Medallion

Here’s how the pros make custom decorative plaster medallions and close reproductions.

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Repairing Historic Flat Plaster Walls and Ceilings

Plaster in a historic building is like a family album. The handwriting of the artisans, the taste of the original occupants, and the evolving styles of decoration are embodied in the fabric of the building. From modest farmhouses to great buildings, regardless of the ethnic origins of the occupants, plaster has traditionally been used to finish interior walls.

Patching plaster before and after

How To Patch Plaster Walls

Revive failing plaster with this straightforward repair process.

Wall-lining textiles apply with adhesive like wallpaper and are ideal for covering multiple cracks and surface imperfections.

How To Repair Failing Plaster

How to repair plaster that's failing.

The key to textured finishes is experimentation. Plaster has a way of pointing you in the right direction, as long as you are open to making adjustments according to its needs.

How To Repair Textured Plaster

Textured plaster was common in many Spanish and Tudor interiors in the early 20th century. An expert shows how to re-create this lost art in your own home.

Because this plaster was becoming detached from the lath (delaminated), it has been marked for reattachment. The crack is notched and ready to be vacuumed out. (Photo: The Lords)

How to Repair Plaster Cracks

Old-house walls often fail through no fault of their own. Use these tips to correctly repair the cracks in your old home.

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