LRUZ Face-Mount Rafter Hanger
Product Details
The LRUZ offers an economic alternative for those applications requiring a sloped hanger for rafter-to-ridge connections. Used with solid sawn rafters, the LRUZ’s unique design enables the hanger to be installed either before or after the rafter is in place. The field-adjustable seat helps improve job efficiency by eliminating mismatched angles in the field and lead times associated with special orders. The LRUZ offers comparable or better load capacity to other rafter hangers at a reduced cost while using fewer fasteners.
Key Features
- The open design and ability to field-adjust the slope make the LRUZ ideal for both retrofit or new applications.
- May be sloped down from 0° (0:12 pitch) to 49° (14:12). For slopes greater than 45°, allowable downloads are 0.85 of table loads.
- May be sloped up from 0° to 45°.
- For added versatility, the fasteners on the face of the hanger are placed high, enabling the bottom of the rafter to hang below the ridge beam (see “Max. C1” dimension in Standard Installation table).
- Can be installed using nails or Strong-Drive® SD Connector screws.
Material
- 18 gauge
Finish
- ZMAX® coating (G-185); see Corrosion Information
Installation
- Use all specified fasteners; see General Notes
- Joist fasteners must be installed at an angle through the rafter or joist into the header to achieve the table loads
- See Alternate Installation table for retrofit applications
Patent Information
- US Patent 10,370,842
Related Literature
Product Information Tables
Minimum Ridge Beam Depth (in.)
(See footnote 3 at left)
- Minimum ridge beam depths shown assume that the rafter and the ridge beam are flush at the top.
- Minimum ridge beam depths have been determined to ensure the maximum C1 dimension for the LRU is not exceeded. Deeper ridge beams may be required to support the rafter loads as determined by the designer.
- Per the 2012/2015/2018/2021 IRC Section R802.3 the ridge is required to be not less in depth than the cut end of the rafter unless the ridge is designed as a beam.
- Slopes greater than 12:12 are download only.
Load Tables
Standard Installation
These products are available with additional corrosion protection. Additional products on this page may also be available with this option, check with Simpson Strong-Tie for details.
Many of these products are approved for installation with Strong-Drive® SD Connector screws.
- Uplift loads have been increased for earthquake or wind loading with no further increase allowed. Reduce where other loads govern.
- Allowable loads are based on a minimum 3" carrying member. For single 2x carrying members, use 0.148" x 1 1/2" nails in the face and 0.148" x 3" in the joist, and reduce the allowable load to 0.81 of the tabulated value for 0.148" x 3" nails. Alternatively, use #10 x 1 1/2" Strong-Drive SD Connector screws in the face and #10 x 2 1/2" SD Connector screws in the joist as shown in the table.
- Fasteners: Nail dimensions in the table are listed diameter by length. For additional information, see Fastener Types and Sizes Specified for Simpson Strong-Tie Connectors.
Alternate Installation for Retrofit Applications
When an existing roof deck prevents the horizontal installation of fasteners, #10 x 2 1/2" Strong-Drive SD Connector screws may be installed sloped upward to match the roof pitch (49° max.). Use table values for an installation with 0.148" x 3" nails when Strong-Drive SD Connector screws are sloped. Nails may not be installed sloped upward.
- Uplift loads have been increased for earthquake or wind loading with no further increase allowed. Reduce where other loads govern.
- Allowable loads are based on a minimum 3"-thick carrying member.
- Fasteners may be angled upward a maximum of 49°.
- Fasteners: SD screws are Simpson Strong-Tie® Strong-Drive screws. See fastener information.
Code Reports & Compliance
Drawings
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