Heritage Masonry
Marble Spalling: Identify the Cause Before Repair
Distinguish marble spalling from etching and sugaring, trace moisture and anchor problems, and choose compatible repairs for historic stonework.
Distinguish terracotta-colored clay bricks from architectural terra-cotta, then check suitability for walls, paving, heritage repairs and ovens.
Oct 13, 2026
Heritage Masonry
Distinguish marble spalling from etching and sugaring, trace moisture and anchor problems, and choose compatible repairs for historic stonework.
Heritage Masonry
Understand quicklime, hydrated lime, lime putty and NHL, with a material checker and guidance on hot mixing, historic mortar compatibility and safe handling.
Heritage Masonry
Distinguish soldier bricks from sailors and rowlocks, assess support over openings, match historic repairs, and calculate a straight course’s layout.
Heritage Masonry
Identify half- and one-third running bond, calculate brick-and-joint offsets, and match historic repairs without confusing the face pattern with structure.
Masonry Cracks
A horizontal foundation crack may signal lateral soil pressure. Compare sealing, reinforcement, anchors and rebuilding—and diagnose the cause first.
Mortar And Repointing
What masonry cement contains, how it differs from mortar cement and mortar mix, and why historic masonry requires a compatibility check.
Heritage Masonry
Diagnose cracks, moisture and failed mortar before choosing masonry repair materials, then confirm compatible work with a cured test panel on site.
Mortar And Repointing
Pointing is the visible mortar finish; repointing renews failed joints. Learn when it is needed, how mortar is matched and what a sound scope includes.
Structural Masonry Repairs
The verdict depends on wall system, reinforcement, connections, condition, site, alterations and retrofit history—not brick alone.
Brick Repair
Match crumbling mortar, spalling, rust stains and cracks to their likely cause, the first check to make, who to call, and when repointing can safely start.
Heritage Masonry
Check every course for alternating headers and stretchers, then verify the offset, corner closures, and why the face alone cannot prove structure.
Mortar And Repointing
Small, stable indoor firebrick joints may suit approved refractory mortar; loose, damp, moving, or recurring damage calls for qualified assessment.
Heritage Masonry
Diagnose moisture and deterioration, retain sound fabric, match mortar by performance, test cleaning, and approve mockups before production.
Heritage Masonry
Cast wet onto prepared masonry, this rough lime-and-aggregate coating manages weather; success depends on preparation, compatible materials and curing.
Mortar And Repointing
Diagnose water or movement, match mortar by behavior and appearance, approve a cured test panel, then repoint without sacrificing the brick.
Mortar And Repointing
Made from water, sand and a binder, it beds and bonds brick, stone or block. See how it differs from cement and concrete—and why compatibility matters.
Mortar And Repointing
Inspect symptoms and correct active moisture or movement first, then specify replacement mortar compatible with historic or traditional masonry.