Older plaster walls as plaster ages,the keys or areas of adhesion to the lath,tend to break causing it to pull away.this results in cracked and saggin plaster. Filling or patching these cracks is only temporary fix with time the cracks will reappear when appropriate we install plaster buttons to secure the plaster before excavating cracks and repairing them properly
We use the type of appropriate materials to repair and restore historic homes from plaster wall and ceiling doing the right preparation like scraping, patch with fiberglass tape,sanding,spray tech to finishing the primer and paint for fine finishing
