Moisture Barrier House Wrap

Commercial Construction Moisture Barrier House Wrap


When planning your commercial construction project there are several options to use for moisture barrier protection when building. In this blog which is 1 of a 3 part series we are going to discuss house wrap (ex – Tyvek) pros and cons.

What is house wrap – House wrap is a light, synthetic material that is installed beneath the siding of a building. It provides a weather-resistant barrier, protecting your building from moisture penetration and improving its energy efficiency. It needs to be installed prior to door and window installation. It can also be installed on older projects. House wrap works to keep heat and humidity out in the summer and warm air in during the winter.



  • Protection from Moisture:House wrap helps prevent moisture from entering through the walls of the building. It also acts as a protective layer around the building by covering gaps and cracks that are found between the sheathing and insulation. It prevents water from seeping through and forming mold, which can lead to rot and create dangerous environmental conditions.


  • Protection from Air Infiltration:House wrap stops or slows the transfer of air from outside to the inside of the building. It produces a protective barrier from airflow, which will ultimately help create a more comfortable environment, minimize allergens, and keep indoor air clean. 
  • Energy Savings: House wrap acts as a seal, preventing excess air infiltration or leakage. This can help save money on your heating and cooling bills due to higher efficiency levels and less energy waste. In addition to saving money on energy bills, you can prolong the life of your HVAC system by lightening its workload. 
  • Very cost effective product.



  • House wrap must be installed correctly in order to do its job effectively. Tyvek will come and inspect after installation. It should be a waterproof protective surface for your building and also have a high moisture vapor transmission rate. If not installed professionally or correctly, it could cause damage to the building sheathing. If it is not handled carefully, it can rip or tear during installation. If lapped on the building improperly, moisture and mold growth could cause serious problems.

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