Specification

C-2013 © 2013 SIMPSON STRONG-TIE COMPANY INC. PRINTED 12/12
151
Plated Truss Connectors
AHEP Adjustable Hip-End Purlin
Plated Truss Connectors
For wood and cold-formed steel trusses, the Simpson Strong-Tie
®
AHEP is
a structural purlin that also serves as an installation lateral restraint and spacer
during the truss erection process. The AHEP attaches to the leading edge of step-
down hip trusses, eliminating the need for drop-top chords, 2x lumber or gable
end fillers. The interlocking design of the AHEP allows them to install linearly,
aligned with the end jacks, to maintain framing spacing from eave to hip or peak.
Roof sheathing/decking attaches directly to the purlin with knurled pneumatic
fasteners or low-profile head, self-drilling screws. Adjustable in length, the AHEP
is designed to accommodate a pitch range of 3/12 to 9/12 as a structural purlin
and up to 12/12 as an installation lateral restraint and spacer.
FEATURES:•Astructuralpurlintowhichsheathingcanbedirectly
attached – no need to remove temporary bracing
 •Accuratelyspacestheinstalledtrussesandhelpsmeetthetemporary
top-chord lateral restraint recommendations of WTCA/TPI BCSI on
step-down hip ends
 •Adjustableinlengthtoaccommodateawidepitchrange
MATERIAL: 20 gauge (33 mil) FINISH: Galvanized
INSTALLATION:•Useallspecifiedfasteners;seeGeneralNotes.
 •Priortoinstallation,theAHEPmustbesettotheproperlengthand
the two tubes fastened together with four #10x
3
⁄ 4 " self-drilling screws
through the round holes in the side flanges for pitches between 3/12 and
9/12; and in the triangular and upper round hole when the AHEP will be
used as an installation restraint and spacer at pitches 9/12 up to 12/12.
 •Fortrussesspaced24"o.c.,thepitchmarkingsontheinnertubemay
be used to line up the tubes to the correct length for a given pitch. For
other spacings, the length of the AHEP must be set to the calculated
sloping length (from leading edge to leading edge of the framing members).
 •ToinstalltheAHEPsonwoodtrusses,usefour10d(.148"x3")nails.
The two nails at the bottom of the part (the yoke end) must be clinched.
 •SheathingisattachedtotheAHEPwithknurledpneumaticfastenersor
low-profile-head, self-drilling screws.
 •Forefciency,theAHEPsshouldbeinstalledinlinewiththeendjacks
so that framing alignment can be maintained from eave to hip/ridge.
CODES: See page 13 for Code Reference Key Chart.
The TSF is a fast and accurate method for spacing trusses that eliminates
layout marking of top plates and can be left in place under the sheathing.
Accuracy is improved, spacing errors are minimized, and it is easy to use.
MATERIAL: 24 gauge FINISH: Galvanized
INSTALLATION:•SeeInstallationSequencebelow.
 •TSFTrussSpacersdonotprovidebracingofanykindand
are not structural members. The TSF is for spacing only.
Refer to instructions from architect, engineer, truss manufacturer
or other for bracing and installation information.
CODES: See page 13 for Code Reference Key Chart.
STEP 1
Nail starting notch to first member.
STEP 2
As each successive member is
positioned, unfold TSF to next
notch. The notch teeth grip
member and align it for nailing.
STEP 3
If spacer does not align with end
truss, break spacer off at notch.
Then, hammer spacer flat, fold
it under and nail.
TSF
Model
No.
Dimensions
Code
Ref.
W
O.C.
Spacing
Total
Length
TSF2-16 1
1
⁄ 2 16 8'
180
TSF2-24 1
1
⁄ 2 24 10'
TSF Truss Spacer
3
4
5
6
7
Tongue
Yoke
Side-flange fasteners
two (2) #10x
3
⁄4"
each side
Length from bend line to bend line
AHEP
U.S. Patent Pending
3
4
5
6
7
3
4
5
6
7
3
4
5
6
7
3
4
5
6
7
3
4
5
6
7
3
4
5
6
7
3
4
5
6
7
3
4
5
6
7
3
4
5
6
7
Typical AHEP
Installation
Online Calculator for AHEP Installation
A Web-based calculator is available to help Designers check AHEP applicability
based on the actual hip-end roof pitch, input live and dead loads, truss and
purlin spacing and the selected sheathing and deflection criteria. To view the
calculator, visit www.strongtie.com/webapps/ahep.
Model
No.
Fasteners
Sheathing
Option
Allowable Down Loads (lbs.)
Code
Ref.
AHEP Side
Flanges
To Hip
Trusses
3/12 Pitch 3.1/12 Pitch 9/12 Pitch
L/180
3
⁄ 16 " L/180
3
⁄ 16 " L/180
3
⁄ 16 "
AHEP 4 - #10 4 - 10d
None 180 240 180 240 135 150
I13
15
⁄ 32 " (Min.)
Wood Sheathing
250 345 210 275 160 175
1. No load duration increase allowed.
2. Allowable loads apply to wood with a specific
gravity of 0.42 or greater.
3. Designer shall insure attached members are
adequately designed to resist applied loads.
4. Straight line interpolation can be used to
determine allowable loads for pitches between
3.1/12 and 9/12.
5. Nails: 10d = 0.148 dia. x 3" long.
Screws: #10 = #10 x
3
⁄ 4 " long self-drilling screws.
See page 22-23 for other nail sizes and information.
The two nails at the
bottom of the part
(the yoke end) must
be clinched