Use the Insulation tool to place a batt insulation graphic in a detail view or a drafting view. You can adjust the length and width of the insulation, as well as the size of the bulge between insulation lines.
To add insulation
Insulation is sketched similar to model lines. You can set an offset from the cursor, and you can pick a line on which to sketch the insulation.
To change the width of the insulation
To change the length of the insulation
To resize the bulge between insulation lines
A smaller value increases the bulge, while a larger value decreases it.