On house wrap, how far do you lap the edges and ends?

The correct answer regarding the lapping requirements for house wrap is indeed based on the recommended practices in the industry. When installing house wrap, it is essential to ensure that edges and ends are adequately overlapped to maintain the integrity of the weather barrier.

The guideline of lapping edges by 2 inches and ends by 6 inches is commonly prescribed to ensure that water does not penetrate the seams and that the house wrap effectively sheds moisture. This specific overlap provides a robust barrier against water infiltration while allowing for any expansion or contraction of the material due to environmental conditions.

Proper lapping ensures that the house wrap maintains its intended functionality throughout various weather conditions, promoting energy efficiency and protecting the building envelope from potential damage caused by moisture. This practice contributes to the overall durability and effectiveness of the home’s weather-resistive barriers.