Use flexible flashing tape below the pipe, overlapping the house wrap.
How to install house wrap around existing windows and doors. Next comes another layer of building wrap, installed like the first layer. Pull back the house wrap and apply the first 5 inches up the jack stud of the window opening. Install flexible flashing tape above the pipe, tucking it under the house wrap.
For the larger gaps and holes you could use some of that spray foam. There are many products on the market today to use on window and door sills. Install the trim just under the drip cap.
Drywall will cover this part of the tape as the home is finished. Tape the flap from step 2 over the flashing. It should be fairly obvious.
Dupont™ flashing tape for inside and outside wall corners Be aware this is my method of installation. Install side flashing over the wrap.
Then applying the tyvek as described. You wrap a whole wall with tyvek, then you cut out the part that is over the glass and the frame but leave it over the window flanges. Lap it over the bottom house wrap and under the top;
Caulk and backer rod will also serve as a back dam. Tape the cut edges to the window flange/frame. Extend the house wrap over the footing top at least 2 inches.
In the top of the window or door, make a top flap and use a head flange and secure the top flap and over the flange. Flashing comes in a few different forms. There is vinyl flashing, that is commonly used in combination with vinyl siding ,.
To make the strips manageable, put them in a cooler or freezer for 30 minutes before installing so the adhesive is less aggressive. Apply a bead of caulk to the felt and set the window in the caulk. Seal around the window opening at the interior, using caulk (and backer rod as necessary).
To flash a flanged vent: Seal existing windows and doors with tape. Use flashing tape to cover the flange, sealing the flange to the house wrap and then apply a piece of tape along the top flange.
If you’re installing house wrap around existing windows and doors, most building inspectors require those windows and doors to be sealed directly to the house wrap. Recessed window installation greater than 4 inch recess before wrb. ™cut two pieces of dupont™ straightflash or dupont™ flexwrap™ for jamb flashing extending 1” above
*important* they taped the wrap under the nailing flange and over the bottom sill. For roundtop windows step 4 a. If the cracks and things are really minimal, either use cheap caulk or ignore them.
Install window according to manufacturer’s instructions. On both sides of the windows trim wrap according to the window size and same is. Install house wrap before doors and windows.
Slide a piece of house wrap into the slit; Prep and install the window: How to install dupont tyvek homewrap.
The strips should extend a couple inches above the top of the head casing and a couple. Just be very carefull when using it around doors and windows, there is a seperate product to use around those areas that expands less. Insert the window in the opening, plumb and level.
Most installers tape the bottom flange to the house wrap which traps water inside the wall. Again, this is critical for proper drainage. Install flashing around patio door.
Extend any extra width over the top of the house wrap around the windows or doors on a new frame. Install the house wrap between the double top wall plates. Then apply the last 5 inches on top of the house wrap that is stapled to the window sill.
Depending on exactly what the ice dam looks like, the tyvek needs to go under it. Do not flash in the bottom of the window to allow the water to escape. Caulk the back of the flange sides and top (not the bottom).
Recessed window installation up to 4 inch recess before wrb. Secure the wrap to the flange with tape or caulk. On both sides of the window or door, trim the wrap close to the window or door flange.
Tyvek will stop wind and water but allow the house to breath. Remember to wrap the material starting low and work your way up to ensure proper material overlap (as shown in the vid. I have seen on dupont's site where the housewrap is rolled over existing windows, and not taped at the bottom, but the sides and head are.they show the use of tyvek tape.
Some great, some not so great. I had thought about using the window flashing tape.over the windows directly to the osb. Proper installation of flashing around the windows, and having a seamless house wrap can prevent this moisture penetration.