How to Use This Construction Resource

National Tile Authority organizes the tile installation and tile contracting sector into a structured reference directory covering professionals, licensing standards, regulatory frameworks, and service categories across the United States. This page explains how the directory is organized, how content is maintained, and how professionals and service seekers can extract maximum utility from the resource. The tile sector intersects with building codes enforced under the International Building Code (IBC), installation standards published by the Tile Council of North America (TCNA), and occupational safety requirements administered by OSHA — making accurate, well-structured reference information essential for informed decisions.

How to find specific topics

The directory is organized around functional categories that reflect how the tile contracting sector actually operates — by service type, geographic scope, licensing classification, and regulatory domain. Navigation follows a consistent hierarchy: sector overview pages establish the landscape, while listing pages surface specific contractors, suppliers, and service providers.

The primary entry points are:

1. Directory listings — The Tile Listings section organizes contractors and related service providers by specialty and region. Entries are classified by service type, including residential tile installation, commercial tile work, specialty substrates, and restoration.
2. Scope and purpose reference — The Directory Purpose and Scope page defines what the directory covers, what it excludes, and how classification boundaries are drawn between adjacent trades (for example, tile setters versus flooring installers who work with non-cementitious materials).
3. Topic search by keyword — Each content page is tagged to reflect the regulatory and technical domain it addresses, including permit-required work, ANSI A108 installation standards, and waterproofing membrane classifications.

When navigating the directory, the distinction between licensed tile contractors and general flooring contractors is operationally significant. In states such as California, Florida, and Louisiana, tile installation above specified square-footage thresholds requires a specific contractor license classification issued by the state contractor licensing board. General flooring licenses do not satisfy this requirement. Content pages on this site reflect those classification boundaries explicitly rather than treating flooring trades as interchangeable.

For permitting-related content, pages are structured around the phase at which permits apply: rough substrate inspection (where required), waterproofing inspection in wet-area installations, and final finish inspection. These phases are distinct and not all are required in every jurisdiction.

How content is verified

Content published on National Tile Authority is referenced against named public standards and regulatory sources. The primary sources used for technical and regulatory grounding include:

• TCNA Handbook for Ceramic, Glass, and Stone Tile Installation — the industry's primary installation standards reference, published by the Tile Council of North America
• ANSI A108/A118/A136 series — American National Standards Institute standards governing installation methods, adhesive performance, and grout specifications
• International Building Code (IBC) and International Residential Code (IRC) — model codes adopted in 49 states with jurisdiction-specific amendments
• OSHA 29 CFR 1926 Subpart Q — masonry and tile work safety standards applicable to commercial and multi-unit construction sites
• State contractor licensing board records — licensing requirements are referenced against public records from individual state boards; these vary by state and are subject to legislative revision

No content on this site constitutes legal advice, professional engineering guidance, or a substitute for consultation with a licensed contractor or building official. Regulatory content describes the structure of requirements — not their application to any specific project or jurisdiction.

Content is not drawn from manufacturer promotional materials or trade association advocacy publications unless those sources are identified explicitly by name.

How to use alongside other sources

This directory functions as a structured reference layer — not a replacement for primary regulatory documents, permit applications, or direct engagement with licensed professionals. Three complementary source categories serve functions this directory does not:

1. State licensing board databases — For license verification, the authoritative source is always the issuing state board. National Tile Authority references licensing frameworks but does not replicate live license status data.
2. Local building departments — Permit requirements for tile work — particularly in wet areas, exterior applications, and commercial occupancies — are determined at the municipal or county level. The IBC and IRC establish baseline frameworks, but local amendments govern in practice.
3. TCNA and ANSI documentation — Installation method specifications referenced in directory content are drawn from TCNA and ANSI publications. For project-specific specification writing, engineers and architects consult those documents directly.

The how-to-use-this-tile-resource page and the Directory Purpose and Scope page together define what this resource covers and the boundaries of its authority. Cross-referencing those pages with primary regulatory sources produces the most complete picture for any professional or procurement decision.

Feedback and updates

The tile contracting sector is subject to periodic revision across all three governing domains: TCNA updates the Handbook on a multi-year cycle (the 2023 edition is the current published version), ANSI standards undergo scheduled review, and state licensing requirements are revised through legislative and administrative processes that operate independently of each other.

Content pages that reference specific code editions, licensing thresholds, or inspection requirements are reviewed when those source documents are publicly updated. Pages referencing OSHA standards cite the Code of Federal Regulations section directly — changes to 29 CFR 1926 are tracked through the Federal Register.

Factual discrepancies identified by licensed professionals, building officials, or researchers can be submitted through the Contact page. Submissions that include a citation to the governing public source — statute number, ANSI standard designation, or TCNA Handbook section — are prioritized for review. Feedback without source documentation is logged but not actioned on the same timeline.