PA/HPA purlin anchors offer solutions for wood to concrete and concrete block connections which satisfy code requirements. The PA's dual embedment line allows installation in concrete or concrete block.

Material: PA - 12 gauge; HPA - 10 gauge.

Finish: Galvanized. PA’s available HDG or ZMAX®.

Installation:

• Minimum concrete strength is 2000 psi.
• Use all specified fasteners; some models have extra fastener holes. See General Notes.
• Purlin Anchor must hook around rebar.
• Wood splitting may occur when anchor is nailed to wood less than 3 1/2" wide. For widths less than 3 1/2", see PAHD Holdowns for alternate nailing configurations or PAI.

Edge Distance: Minimum concrete edge distance is 5". Minimum concrete block left-to-right edge distance is 20".

Concrete Block Walls: The masonry embedment line on PA and PATM allows for 4" of grout embedment in a standard 8" concrete masonry unit. The minimum wall specifications (see image, PA/HPA Purlin to Concrete Block Wall, below) are:

A  One # 4 vertical rebar, 32" long, 16" each side of anchor;
B  Two courses of grout filled block above and below the anchor (no cold joints allowed);
C  A horizontal bond beam with two # 4 rebars, 40" long, a maximum of two courses above or below the anchor.

All cells grouted with 2000 psi 3/8" aggregate grout. Grout shall be vibrated per the Code. Rebar quantities, sizes and lengths are minimum requirements and may be increased per any additional wall design requirements.

Options: See LTT and HTT Tension Ties for alternate retrofit solutions.