Clay roof tile library
Understand the material. Preserve the craft.
An expanding reference for homeowners, roofers, designers and preservation teams, from fired-clay fundamentals to the details of a lasting roof.
Start with the question in front of you
A clearer path through clay roofing.
Identify a tile, compare a profile, review a submittal or plan a historic repair. These original introductions connect practical project questions with government, industry and manufacturer resources.
New collection published October 28, 2026 · 24 guides · 52 glossary terms · 11 technical resources.
01 · Explore
Clay fundamentals
How clay roof tiles are made
Follow a clay roof tile from raw material to finished unit, and learn which production details matter when choosing a roof.
Terracotta, ceramic and clay: what the names mean
Separate material descriptions from profile names and finish labels when comparing clay roofing products.
Pressed and extruded clay roof tile
Understand forming methods without treating a manufacturing label as a shortcut for product quality.
Why roof tile is not floor or wall tile
A shared clay material does not make ceramic products interchangeable between building uses.
02 · Explore
Clay specifications
How to read a clay tile data sheet
Turn a product sheet into a useful checklist for design, estimating and contractor discussions.
Clay tile water absorption and exposure
Understand why water absorption belongs in a documented product evaluation, especially where freezing exposure matters.
What ASTM C1167 does—and does not—tell you
Understand the role of a clay roof tile material standard within a complete project specification.
A clay roof tile submittal checklist
Organize the information needed to approve a particular tile and its roof assembly.
Resolving conflicting clay roof documents
Turn conflicting instructions into specific questions before the roof is built.
Reading a clay tile environmental declaration
Compare environmental product information without turning a single figure into an unsupported whole-roof claim.
Clay tile and roof fire classifications
Distinguish the tile material from the fire performance of the complete roof system.
03 · Explore
Clay profiles
Spanish S-tile versus two-piece Mission tile
Compare two familiar curved roof forms by their components, installed rhythm and replacement requirements.
French interlocking clay roof tile
Recognize the character of French-style clay tile and the details that make a compatible repair possible.
Roman pan-and-cover clay roof tile
Learn how the relationship between pans and covers shapes a Roman-style roof.
Flat clay shingles and double-lap roofs
Understand the layered geometry behind traditional flat clay tile roofing.
Identifying tapered barrel clay tiles
Capture the geometry that a supplier needs when an old curved tile cannot be identified by name.
04 · Explore
Clay conservation
White deposits on clay tile roofs
Separate observations from conclusions when pale deposits appear on tiles or near mortar.
Crazing, chips and spalling on clay tile
Use precise condition descriptions before deciding whether weathered clay tiles need repair or replacement.
Reading historic clay tile maker’s marks
Build a useful identification file from stamps, dimensions and roof history.
Documenting a historic clay roof before work
Create a photographic record that supports preservation decisions and later repairs.
Approving reproduction clay roof tiles
Use prototypes and written acceptance criteria when an original tile is no longer readily available.
05 · Explore
Clay ownership
Attic condensation or a tile roof leak?
Collect observations that help a professional distinguish rain entry from moisture forming inside the roof space.
Planning clay tile orders and substitutions
Protect a project schedule while keeping product selection, accessories and approvals aligned.
An owner’s clay roof maintenance record
Build a simple roof file that makes each inspection and repair more useful.
Use the complete roof system
These guides support informed conversations. Project specifications depend on the actual tile, assembly, exposure, applicable requirements and qualified assessment. Start with the technical library and keep the current documents with your roof records.