Attic Truss With Raised Heel

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Attic truss with raised heel.

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. Energy trusses have raised heels so they can reach r values of 30 or higher. The extra height of a raised heel truss roof provides additional space for uncompressed attic insulation and the full depth of insulation to be extended right to the outside of the top plate. Most standard residential trusses can achieve r values r value referring to a rating that represents the insulation s capacity to resist heat transference from heated to non heated areas and vice versa of 11 or 13 near the sidewall.

Raising the truss higher has two big advantages. It greatly simplifies attic ventilation and it leaves ample room for insulation. This in turn cuts heat transfer and improves the efficiency of the hvac system. It is raised higher with a heel that extends up from the top of the wall and elevates the truss at the building s edges.

A raised heel truss is much like it sounds. This also makes the attic a better option for hvac ducting as it. The apa the engineered wood association has released a new construction guide raised heel trusses for efficient cost effective comfortable homes form r330. Add to list click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to your list.

Click to add item 24 spreadweb residential roof truss 5 12 pitch 87 to the compare list. When a raised heel truss roof is combined with an efficient building envelope and a well ventilated attic it reduces the pressure and temperature differences between the home and the attic space. Raised heel trusses do not compress the attic insulation over the top plate which compromises the insulation value. When builders use these trusses the energy code allows for use of less insulation for the entire ceiling system.