Loudermilk Homes - Tyvek Window Flashing Using AAMA Method B for Window Installation

Loudermilk Homes embraces a culture of lifelong learning, and we are on a quest to find the best products and techniques.
We recently hosted Parksite, a top supplier of DuPont products including Tyvek, to demonstrate perfect installation methods for window flashings to prevent water intrusion while letting moisture vapor out.
Check out this video of our rigorous step-by-step process for product perfection.

[@picmanjoe]

I think you could avoid two layers of flex wrap on the sides by cutting the wrap back a couple inches and then applying the flex wrap. You would get adhesion between the sheathing and the window, and the sheathing and the wrap. One piece for two purposes.

[@user-bz9ut2lo3d]

Great job!! I did this to my house, air tight windows. Thank you for the video.

[@santosacosta8779]

Muy bien

[@stevensandoval4827]

Is this the proper method to use if the house exterior will be finished in stucco??

[@sherwinloudermilk4456]

Correct. But, you will also need a rain screen wrap on top of the Tyvek. Good luck!

[@Bast2099]

@@sherwinloudermilk4456 and building paper - stucco (traditional not EIFS) needs something to bond to - tyvek doesn't bond.

[@Bast2099]

best to use two layers of BP everywhere or multiple materials tyvek taped everywhere and then BP where you have stucco.

[@patrickcannady7716]

I think it need 4 more layers of tape😅

[@masche54]

I bought a roll of flex wrap paid over 200 dollars for it and hardly used much and it deteriorated. Definitely not worth the money