Multiple-Choice Question How is the outer shell of double-shell masonry secured? Answers Option 1 With dowels. Option 2 With wall anchors. Option 3 No additional securing is necessary. Feedback Wrong. Right! Wrong. Solution Wrong (Feedback) Correct Option (Feedback) Wrong (Feedback)
Reflection What needs taking into account in choosing an insulation material for double-shell masonry? Feedback The in-between space for insulation is limited, so the insulation material should have low thermal conductivity. For passive-house walls, for example, values of λ = 0.022 to 0.028 W/mK are appropriate.