Use the FRSA-TRI Tile Manual to Properly Install Tile Hip and Ridge Members Manny Oyola, Jr., Technical Manager Eastern Region FL, Eagle Roofing Products Proper installation of hip and ridge roof tile is likely to be the difference between a roof that withstands the uplift pressures of a high wind event and one that fails to protect the building it covers. Let’s look at important components of properly installed hip and ridge tile.
Metal Member – Typical Install
Establishing the Wind Zone Requirements
Before designing and installing a roof, we must first know what the design speed requirements are for its location. Wind speed calculators available online (for instance, https://asce7hazardtool.online) can work very well in helping you determine the design requirements; however, it is critical to verify the building department’s set compliance requirements in the authority having jurisdiction. Once you have established design requirements, you can choose from one of four types of hip and ridge tile attachment methods. These methods are covered starting on page 14 of the FRSA-TRI Florida High Wind Concrete and Clay Tile Installation Manual and are code-compliant, by reference, in the standard region of the Florida Building Code. Once you have selected which type of material you will use for the structural support (see Hip and Ridge Attachment table below), you can then use the corresponding instructions from the Tile Manual. However, before we look at the methods listed in the Tile Manual, it is important to note that an installation method typically used in the field does not follow the methods listed in the Tile Manual:
The lower part of the metal is five to six inches from the outer edge without a cantilever. Important: the above installation is one typically found in the field, however, it does not allow the adhesive to make continuous contact with both the ridge cap and support on the first tile. Now, let’s look at installation methods provided in the Tile Manual: Metal Member – Set member in plastic cement or compatible sealant. Fasten 6” on center on each side of the metal flange with minimum 1-1/4” ring shank roofing nails. If mechanical attachment of the member is not used, install the member with foam per the manufacturer’s instructions.
Hip and Ridge Attachment Table Field Tile Attachment
Structural Support
Member Attachment
Trim Tile Attachment
Metal
Mechanical or Foam
Foam
Plastic
Foam
Foam
Foam Mechanical Mortar
Foam Wood
Foam Mortar
22
Mortar
FLORIDA ROOFING | November 2022
Foam H-Bracket Straps
Mortar
Weatherblocking
Finish
Foam
Coating
Mortar
Mortar
Foam
Coating
Mortar
Mortar
Foam
Coating
Mortar
Mortar
Mechanical with Adhesive
Foam
Coating
Flexible
Dry
Mortar
Mortar
Mortar
Mortar
Mortar