How to Guide

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Effective August 1, 2014. Please reference our website to ensure that you are using the most up to date version.

RAFTER TAIL TO TOP PLATE

ConneCtion Details

CAN BE USED WHEN RAFTER IS ALIGNED OVER OR BETWEEN WALL STUDS

FastenMasteR teCHniCal BUlletin

The minimum fastening requirements for the rafter to top plate connection in the 2006–2012

International Residential Code (IRC) and International Building Code (IBC) include a wide range of

nailing options. In all cases, these codes can be met by installing the FastenMaster TimberLOK when

the guidelines on this technical bulletin are followed.

In many cases where increased wind or seismic conditions require a stronger rafter to top plate

connection, this fastening method may also be used to replace the use of metal ties or straps.

FASTENING METHOD

•

Use a 6" FastenMaster TimberLOK.

• Where the rafter is directly over the wall stud, insert fastener point

between the bottom of the top plate and the top of the stud.

• Where the rafter is located between two studs, insert fastener point

on bottom surface of the top plate no greater than 1/2" from the

inside edge of the plate.

•

Drive fastener through double top plate at an angle between

and

and into the center of the rafter.

•

Fastener must be driven into the center of the 1-1/2" rafter edge

(+/– 1/4") with the threads fully embedded into the rafter.

•

Bring the fastener head ﬂush with the wood surface.

SIDE

VIEW

15-30

PAGE 1
FASTENMASTER TE CHNICAL BULLETIN RAFTER TAIL TO TOP PLATE Connection Details The minimum fastening requirements for the rafter to top plate connection in the 2006–2012 International Residential Code (IRC) and International Building Code (IBC) include a wide range of nailing options. In all cases, these codes can be met by installing the FastenMaster TimberLOK when the guidelines on this technical bulletin are followed.
PAGE 2
FASTENMASTER TECHNICAL BULLETIN FASTENER DESIGN LOADS TABLE 1 The FastenMaster TimberLOK load values in Table 1 can be used by a design professional to determine suitability of these fasteners in a rafter to top plate connection. • Where the uplift and/or lateral design loads have been provided on the building plans, the allowable loads in Table 1 can be compared to the plan values to make sure they are met or exceeded by use of this fastening method.