Raised Heel Roof Truss

The apa the engineered wood association has released a new construction guide raised heel trusses for efficient cost effective comfortable homes form r330.

Raised heel roof truss.

The original purpose of a raised heel truss was to allow roof lines to match up for improved curb appeal. A raised heel truss is much like it sounds. The eight page guide offers detailed illustrations and installation instructions and describes how a raised heel truss construction system can increase the structural and energy performance of a home and save on costs. Raised heel trusses are engineered wood trusses fitted with a heel where the bottom chord intersects with the perimeter wall plate which raises the top chord.

Now this is nothing new. Post frame trusses can be used for agricultural residential commercial or industrial use. Raised heel trusses differ from their conventional truss counterparts in that they are fitted with a heel where the bottom chord intersects with the perimeter wall plate which raises the top chord. In vented roofs airflow through the vents can diminish the heat trapping effect of insulation.

Raised heel trusses 9 1 4 to 15 1 4 inches in depth. The heel of a conventional plated roof truss where the bottom chord intersects with and bears on the perimeter wall plate and is fitted with a vertical member that literally raises the top chord of the truss. Raised heel trusses also known as energy heel trusses deliver cost effective energy performance especially when used with continuous plywood or osb sheathing. The heel of a conventional metal plated roof truss where the bottom chord intersects with and bears on the perimeter pole building wall columns and is fitted with a vertical member which literally raises the top chord of the truss.

The primary advantage of raising the heel is to allow full depth uncompressed wall to wall insulation of the attic floor. Energy trusses have raised heels so they can reach r values of 30 or higher. This additional space allows you to increase the amount of insulation you can use without compressing it. Post frame trusses are designed to be placed at spans greater than two feet on center.

Building is designed in accordance with the irc. A raised heel truss is much like it sounds. Easy to build with. Raised heel trusses are installed the same as conventional trusses.

Framing with raised heel trusses and continuously sheathing exterior walls improves structural and energy performance and offers many savings that benefit both the builder and the homeowner.