Technical Briefs

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Hip and Ridge Mortar Generated Surface Efflorescence
#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. Read more.

REVISED Obsolete Concrete Roof Tiles Formerly Produced in Florida
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. See the list.

Letter to TRI Members re: Banding of roof loaded tiles during wind events.
September 6, 2017 – As the tile industry we are 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.

#2016-001 “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 then 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. The attachment of any accessory directly to an individual tile or tiles is prohibited. Read more for recommendations.

#2015-01 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) will be 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).

(How to walk on a tile roof and avoid breaking tile.)

#2014-01 Efflorescence on Roofing Tiles
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.

2012-100 – Uplift resistance values for foam adhesives – Coming Soon.

2011-05 “Original State” of Concrete / Clay Roof Tile Being Shipped from a Manufacturing Facility

Hail Damage Is Not Indicativeof a “Manufacturer’s Defect” 2008-01 Solar Panels2006-002

Adoption Date for Moderate Climate Installation Guide, 2006

2006-001 Permissible Tile Head Lap for Tile Installations on Sealed Underlayment Systems of Application

A Summary of Studies on Seismic Safety of Roof Tile – print an order form
  Order PDF Download ($10)

99-003 Direct Deck Nailing

99-002 Chipped Tile

99-001 Base Flashings

98-001 Weather Blocking for High Profile tile

01-701 Weather Blocking of Hips, Ridges and Headwalls

Concrete Tile Roofs, PCA Technical Brief No. 16