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  • Why Tile?
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TECHNICAL BRIEFS

Installation guidance for tile roofing contractors, the latest code requirements and their impact, and recommendations for flashings, underlayments, adhesives and more.
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IAPMO UES Modified Report ER2015

July 3rd, 2025
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The Tile Roofing Institute's Concrete and Clay Roof Tile Installation Manual recognized in this report has been evaluated for concrete and clay roof tile installation and structural wind application.
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Raised Fascia and Anti-Ponding

May 22nd, 2023
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#2023-001 This Technical Bulletin is provided to address recommendations for the use of Anti-ponding materials, or designs with concrete and clay roofing tile installations with raised or elevated fascia designs at the eave of a roof. 
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​Weather Blocking For Roof Vents In Florida

March 17th, 2023

#2023-001 – In response to the inquiries from industry professionals regarding weather blocking of roof vents the Tile Roofing Industry Alliance provides the following guidance.

For jurisdictions in Florida that allow mortar as a weather blocking option for vents or other similar penetrations, the language found in the new FRSA/TRI Florida High Wind Installation Manual 6th &7th Edition, provides the following information.
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​Obsolete Concrete Roof Tiles Formerly Produced In Florida – Updated 11/1/22

November 3rd, 2022

#2022-003 (replaces #2022-002) The Tile Roofing Industry Alliance in response to the vast number of inquiries from industry professionals, has revised the list of obsolete tiles from the previous version. We have eliminated several of the very old tiles to reduce the number to match the inquiries we have been receiving.

​The following roof tiles are obsolete and do not interlock with the profiles currently offered by our existing member roof tile manufacturers. Identifying marks on the back of each tile may include Pioneer, Currier, Entegra, Wallin, Pioneer, Bender and/or Hanson. This list covers the most commonly asked tiles.
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​Obsolete Concrete Roof Tiles Formerly Produced In Florida – Updated 10/5/22

October 5th, 2022

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#2022-002 (replaces #2020-03) – The Tile Roofing Industry Alliance in response to the vast number of inquiries from industry professionals, has revised the list of obsolete tiles from the previous version. We have eliminated several of the very old tiles to reduce the number to match the inquiries we have been receiving.
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​Post Storm Event-Considerations For Repairing Damaged Concrete & Clay Roofing Tiles

August 10th, 2022

#2022-001 The Tile Roofing Industry Alliance (TRIA) is an industry trade association comprised of roof tile manufacturers, roofing contractors and suppliers dedicated to the advancement of tile roofing.

Properly installed tile roofs last longer than most comparable roof systems, and are repairable in most cases if exposed to flying debris and other natural disaster related activities.
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The guidelines included herein are designed to assist the user with the evaluation of a storm damaged tile roof and to help the user determine whether to repair or replace the roof. Read more.
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​Tile Replacement Considerations For Tile Roofs

April 6th, 2021

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#2021-02 Damage from weather related storms, installation or other impact events can potentially break a roofing tile resulting in the need for a tile repair or replacement. Perform due diligence of the viable options when locating a replacement tile. While most concrete and clay tiles in the market are still in production, some may no longer be manufactured. Read more
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​Evaluation Of Roofs After High Wind Events

April 6th, 2021

#2021-01 This Technical Bulletin is provided to address some misconceptions about concrete and clay roofing tile roofs when inspected, repaired or assessed as a result of a high wind event. Read more.
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​Obsolete Concrete Roof Tiles Formerly Produced in Florida

December 1st, 2020

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#2020-03 In response to the vast number of inquiries from industry professionals, please note the following list of concrete roof tiles that have been produced in or shipped to Florida over the past several decades. The following roof tiles are obsolete and do not interlock with the profiles currently offered by our existing member roof tile manufacturers. Identifying marks on the back of each tile may include Pioneer, Currier, Entegra, Wallin, Pioneer, Bender and/or Hanson.
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Florida High Wind Concrete and Clay Tile Installation Guide – 6th Edition Industry Adoption

December 1st, 2020

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#2020-02 The Tile Roofing Industry Alliance (TRIA), formerly the Tile Roofing Institute (TRI) has recently received the formal code approval on our TRI/FRSA 6th edition of the Florida High Wind Concrete And Clay Tile Installation Guide – 6th Edition. It has been reviewed by the Florida Building Code and has been adopted as part of the new building codes that take effect on 12/31/2020.
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Installation of Compromised Roof Tiles and the Tile Roofing Contractor’s Responsibilities

June 22, 2020

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#2020-01 – There are several factors that are the responsibility of the tile roofing contractor to help reduce or eliminate the installation of compromised concrete and clay roofing tiles.
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​Hip and Ridge Mortar Generated Surface Efflorescence

June 20, 2019

#2019-01 – The use of mortar for the attachment and weather blocking of hip and ridge tiles is a code approved option for tile installations. When mortar is used as a component, either for fastening or weather blocking, there is the opportunity for hip and ridge mortar generated efflorescence to occur on the surface of the underlying roof tiles.
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​REVISED Obsolete Concrete Roof Tiles Formerly Produced in Florida

October 9, 2017
REVISED October 9, 2017 – In response to the vast amount of hurricane damage related inquiries from industry professionals, please note the following list of concrete roof tiles that have been produced in or shipped to Florida over the past several decades.
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Banding Of Roof Loaded Tiles During Wind Events

September 6, 2017
As the industry’s voice for code development and testing, TRI Alliance is being asked to comment on the practice of banding of tiles on roofs during a wind event. The following information will help provide some guidance for the roofing contractor or local building official to consider.
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Recommendations of Flashings at Tile Penetrations

June, 2016
When existing concrete and clay tiles roof systems are altered for the installation of roof accessories, there is confusion in the solar community as to what flashings may be required with tile roofs. It is critical to the long-term performance of a tile roof system that all penetrations or disruptions to the field tiles receive the appropriate deck/underlayment flashing at the penetration, and tile flashings, to ensure uninterrupted water flow on the surface of the roof system, with the secondary protection at the deck/underlayment level in case the tile or tile flashing is breached.
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A Summary of Studies On Seismic Safety of Roof Tiles

TRI is making available a summary of an independent study testing the safety of roof tiles. The study, conducted by the University of Southern California (USC) Civil Engineering Department, determined that concrete and clay roof tile, when installed according to the Uniform Building Code, can withstand forces two to three times those generated by the January 1994 Northridge, California earthquake. 
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Walkability on Concrete and Clay Tile Roofs

2014
While walking on any roof surface should be kept to a minimum, occasionally it may be necessary. Caution should be exercised since most manufacturers specifically do not warrant breakage due to foot traffic.
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Concrete Roof Tiles

Do you want the appearance of a tile roof but not the high cost? Consider beautiful, long-lasting, and economical concrete roofing tiles.
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Efflorescence on Roofing Tiles

2014
Efflorescence is a temporary surface discoloration common to all concrete-based building materials including concrete roof tiles. It is superficial and in no way detrimental to the overall quality, structural integrity, or functional properties of the tile.
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Summary of Changes to the 5th Edition FRSA/TRI Florida High Wind Concrete and Clay Installation Manual

The effective date of the new 2012 Florida Building Code (FBC) was June 30, 2015. Permits issued after this date will need to comply with the new requirements of the code and our FRSA/TRI 5th Edition Florida High Wind Concrete and Clay Installation Manual (dated April 2012). The manual was approved by the FBC as an equivalency standard on September 28, 2014.
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"Original State" of Concrete/Clay Roof Tile Being Shipped from a Manufacturing Facility

May, 2011
Broken roof tiles are only considered a manufacturing defect when damaged during extrusion and prior to curing the concrete or firing the clay as part of the overall manufacturing process. These types of cracks or breaks are easily distinguished from breaks or cracks made after concrete tile has been cured or clay tile has been fired
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Hail Damage is Not Indicative of a "Manufacturer's Defect"

2010
A few insurance companies/claim managers have reported that corners broken at the lower right hand are due to product defect. Roof tile breakage at the overlock section is typically caused by numerous other factors as listed below and not attributable to a defect in the roof tiles.
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Solar Sysyems

2008
The roof must be constructed to support the loads of the roof-installed solar system. Roof-mounted or integrated systems that serve as roof coverings must conform to the requirements of Chapter 9 of the IRC, Chapter 15 of the IBC and/or other building, electrical, plumbing or other applicable codes.
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Permissible Tile Headlap for Tile Installations on Sealed Underlayment Systems of Application

2006
The purpose of this technical brief is to explain headlap variations that are recommended during the installation of concrete roof tiles. The prescriptive 3" headlap referenced in the manufacturer’s installation instructions is intended to assure the proper performance of the system and takes into account the variations that are likely to occur both during the manufacture of the tile as well as the roof installation.
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Adoption Date for Moderate Climate Installation Manual, 2006

2006
The TRI Alliance has recently received formal code approval on our 2006 edition of the Moderate Climate Installation guide. It has been reviewed by the International Code Council (ICC) and received a formal evaluation report number of ICC-ES ESR-2015P.
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Weather Blocking of Hips, Ridges and Headwalls

2001
The new Moderate Climate installation guide just published by the TRI Alliance and the Western States Roofing Contractors Association for concrete and clay tile includes reference to the weather blocking of hips, ridges and headwalls.
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Direct Deck Nailing

1999
A common method of roof tile application has the tile set directly onto the felted roof deck and fastened in accordance with the manufacturer’s recommendation and code approval. Tiles fastened directly to the roof deck must be installed in accordance with 1994 UBC Table 15-D-2, which requires that a No. 11 gauge, corrosion-resistant nail penetrate 2" into the sheathing or through the thickness of the sheathing, whichever is less.
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Base Flashings

1999
Each manufacturer will provide the minimum dimensions for the size of pipe flashings to be used with their tiles. These dimensions are primarily based on the consensus agreement between the Western States Roofing Contractors Association (WSRCA) and the TRI Alliance.
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Chipped Tile

1999
Included in ICBO approval is the instruction that “cracked or broken tiles must not be installed or allowed to remain on the roof.” This requirement is intended to protect the integrity of the installed tile’s water-shedding ability.
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Weather Blocking for High-Profile Tile

1998
The subject of weather blocking or sealing roofs at hips and ridges has in the past been left to the discretion of local building officials depending on weather and wind conditions. Since most roofs in America are installed with a full underlayment system, the issue of sealing these areas is not as critical as it would be in countries where tile is installed without underlayment.
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