Avoiding Window Leaks: How to Flash Window Jambs | ZIP System sheathing and tape
Summary
TLDRIn this video, Ben from Huber Engineered Woods demonstrates the use of Zip System flashing tapes for quick and leak-free window flashing. He explains the process of installing temporary shims, applying exterior-grade sealant, and installing the window according to manufacturer's specs. Ben then shows how to apply Zip system flashing tape to the window jam flanges, ensuring proper overlap and shingling pattern for optimal sealing. The video concludes with a teaser for the next part, focusing on header flashing installation.
Takeaways
- 🔧 Flashing tape is used to prevent window leaks.
- 🛠️ Begin by flashing the sill pan before installing the window.
- 📏 Place temporary shims at each corner of the rough opening and along the nail pattern.
- 🧱 Use exterior-grade sealant, preferably 100% silicone or polyurethane, for a strong bond.
- 🔨 Install the window according to the manufacturer’s specifications, ensuring it's square, plum, and level.
- 🚪 Fasten the window to the opening, then remove the temporary shims.
- 📑 Apply flashing tape to the window jamb flanges, ensuring overlaps to prevent leaks.
- 🧰 The jamb flashing should overlap the sill flashing and extend up to the midpoint under the header flashing.
- 🛑 Ensure proper shingling pattern with the jamb flashing to direct water away from the window.
- 🛞 Use a Zip system roller to seal the flashing tape, addressing wrinkles and air pockets to avoid water infiltration.
Q & A
What is the primary purpose of using Zip system flashing tapes?
-The primary purpose of using Zip system flashing tapes is to prevent leaks around windows by sealing the rough opening, ensuring a watertight barrier.
Why are temporary shims placed at each corner of the rough opening?
-Temporary shims are placed at each corner of the rough opening to help properly position and level the window during installation.
What type of sealant is recommended for installing the window?
-An exterior-grade sealant, such as 100% silicone or polyurethane, is recommended for installing the window to ensure a strong, durable bond.
What should be checked after installing the window to ensure correct positioning?
-After installing the window, it is important to check that the window is square, plumb, and level to ensure correct positioning.
When can the temporary shims be removed?
-The temporary shims can be removed after the window has been properly fastened to the opening.
What is the correct technique for applying Zip system flashing tape to the window jamb flanges?
-The correct technique involves overlapping the jamb flashing over the sill flashing at the bottom and extending it up to the midpoint where the header flashing will go, ensuring a proper shingling pattern.
Why is it important to use a shingling pattern for the flashing tape?
-A shingling pattern is important to ensure that water is directed away from the window and does not accumulate behind the flashing, which could lead to leaks.
What tool should be used to seal the flashing tape to the sheathing?
-A Zip system J roller should be used to press and seal the flashing tape to the sheathing for a secure bond.
What are 'fish mouths,' and why should they be avoided?
-Fish mouths are wrinkles or air pockets that form in the flashing tape, creating potential areas where water can seep in, leading to leaks. They should be avoided to ensure a watertight seal.
Where can you find additional information on installing header flashing?
-Additional information on installing header flashing can be found by visiting the Zip system website at zip system.com, as mentioned in the video.
Outlines
🔧 Introduction to Flashing a Window
Ben from Huber Engineered Woods introduces the topic of using Zip system flashing tapes to flash a window effectively to prevent leaks. He briefly outlines the first step—flashing the sill pan—and prepares for the demonstration of flashing the window jams.
🛠 Preparing the Window Opening
The process starts with placing temporary shims at each corner of the rough window opening where the jam meets the sill. Additional shims are placed along the nail pattern of the window. Using an exterior-grade sealant, Ben recommends using 100% silicone or polyurethane for the best bond.
🚪 Installing and Securing the Window
After applying the sealant, the next step is to install the window according to the manufacturer’s specifications. Ensuring that the window is square, plumb, and level is crucial before fastening it to the opening. Once the window is secured, the temporary shims can be removed.
📏 Applying the Zip System Flashing Tape
After the window is installed, the focus shifts to applying Zip system flashing tape to the window jam flanges. To prevent window leaks, Ben emphasizes ensuring the jam flashings overlap the sill flashing and extend to the midpoint under the head flashing, maintaining a correct shingling pattern.
🎯 Ensuring a Proper Seal
Ben advises using the Zip system J roller to thoroughly seal the flashing to the sheathing. It's important to roll over problem areas like wrinkles or air pockets that can lead to fish mouths, a weak spot where water can potentially enter.
🎥 Stay Tuned for the Final Step
Finally, Ben teases the next step in the process, which involves installing the header flashing. He encourages viewers to visit ZipSystem.com to watch the final video in the series and to gain more insights on protecting their builds.
Mindmap
Keywords
💡Zip System
💡Flashing
💡Sill Pan
💡Window Installation
💡Jams
💡Sealant
💡Shimming
💡Sheathing
💡Header Flashing
💡Shingling Pattern
Highlights
Introduction of Zip system flashing tapes to flash a window and avoid leaks.
Step 1: Flash the sill pan before installing the window.
Place temporary shims at each corner of the rough opening where the jamb meets the sill.
Apply exterior-grade sealant along the nail pattern of the window using 100% silicone or polyurethane.
Install the window according to manufacturer specifications.
Ensure the window is square, plumb, and level before fastening it to the opening.
Remove the temporary shims after securing the window.
Use Zip system flashing tape on the window jamb flanges to prevent leaks.
Ensure the jamb flashings overlap the sill flashing at the bottom.
The top of the jamb flashing should reach the midpoint under where the head flashing will go.
Use a correct shingling pattern for the upper section of the jamb flashing.
Seal the flashing to the sheathing using the Zip system J roller.
Roll over trouble areas such as wrinkles or air pockets to avoid 'fish mouths' which can allow water to seep in.
The next step involves installing the header flashing, which will be demonstrated in a subsequent video.
Visit zip system.com to learn more about flashing techniques and protecting your build.
Transcripts
hi I'm Ben from Huber engineered woods
and today we'll be using Zip system
flashing tapes to demonstrate how to
quickly flash a window to avoid leaks
after you flash the sill pan it's time
to install the window and Flash the jams
start by placing temporary shims at Each
corner of the rough opening where the
jam meets the sill then along the
nail pattern of the window using an
exterior grade sealant for the best Bond
we recommend using only but 100%
silicone or polyurethane
sealant next install your window
according to the manufacturer
specifications once you've checked to
make sure the window is square Plum and
level fasten the window to the opening
then you can remove the temporary shims
once the window is installed apply Zip
system flashing tape to the window Jam
flanges to avoid creating a window leak
pad make sure that the jam flashings
overlap the S flashing at the bottom and
finish at the midpoint of where your
header flashing will go as you're
extending the top part of your jam
flashing think about using a correct
shingling pattern you want the top of
the jam flashing to be just high enough
that it will come to the midpoint
underneath where the head flashing will
go use your Zip system J roller to seal
the flashing to the sheathing make
certain you roll over trouble areas like
wrinkles or air pockets that can form
fish mouths which can be a potential
area or water can creep
in next we'll show you how to install
the header flashing visit zip system.com
to watch the final video in this series
and learn more tips to help protect your
build
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