
How to install Tyvek over existing Windows?
- The entire outline window openings except the sill (base).
- Vertical and horizontal seams where Tyvek rolls overlap.
- Any tears, puncture marks, or other damage the Tyvek suffered during installation. Larger holes may need a small piece of Tyvek wrap taped over them.
How to attach Tyvek?
Unroll and attach the Tyvek.
- Over masonry, temporarily attach with vertical strips of an adhesive containing polyethylene, elastomeric, or latex, roughly 24 in. (61 cm) apart. ...
- Over wood, gypsum board, and most other wall materials, use large head or washer head nails.
- Unless installing over foam sheathing, you may use staples with at least 1 in. (2.5 cm) crowns.
How resistant to water is Tyvek in practice?
Tyvek ® is printable using traditional techniques:
- offset
- flexo
- screen
- UV inkjet
- thermal transfer
- gravure
- latex
- letterpress printing processes
How to install DuPont Tyvek homewrap?
How to Install DuPont™ Tyvek® HomeWrap® (for other DuPont WRB's consult installation guidelines)Learn proper techniques for installing DuPont Weatherization ...

How should Tyvek be installed?
0:113:14How to install DuPont Tyvek HomeWrap - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd the proper fastening schedule is maximum of 18 inch spacing vertically. And horizontally.MoreAnd the proper fastening schedule is maximum of 18 inch spacing vertically. And horizontally.
Does Tyvek work both ways?
Tyvek HomeWrap, Tyvek StuccoWrap, Tyvek DrainWrap, and Tyvek CommercialWrap are equally effective in both directions. However, DuPont Tyvek StuccoWrap and Tyvek DrainWrap has a specially engineered surface that should be placed with the grooves in a vertical direction.
Can you staple Tyvek house wrap?
Tyvek says you can use 4 staples per 9 feet of house wrap if you tape over them an apply the siding right away. But a cap stapler is better. Apply house wrap up the gables before installing exterior trim, even if the attic is not conditioned.
Should Tyvek be taped at the bottom?
For maximum air leakage reduction (when installing as an air barrier), seal wrap at the bottom of the wall with sealant (i.e. DuPont™ Weatherization Sealant), DuPont™ Tyvek® Tape, or DuPont™ StraightFlash™.
Does flashing go over or under house wrap?
The house wrap has to be flashed properly to keep the water moving down and out, not down and in. That means you want the upper layers to come down over the top of the lower layers. Where builders often get this wrong is at the top of a window.
Does water go through Tyvek?
No binders are used to hold the material together, so it is chemically inert. Tiny perforations remain in sheets of Tyvek, meaning that water vapour is able to permeate thin sheets of the material, but liquid water is not.
Does Tyvek go on before Windows?
The most important part of weatherproofing begins before the window goes in. After the house wrap is cut, tuck the bottom flap into the house and install sill flashing. Then fold in the sides of the house wrap, but leave the top flap alone.
How long can Tyvek be left exposed?
Barricade® Building Wrap has special ultraviolet stabilizers that protect against UV rays for up to 12 months.
How do you fasten a house wrap?
0:336:17How To Install House Wrap [Typar] - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo to start out with already pre-cut the house wrap to a little bit longer than the need the lengthMoreSo to start out with already pre-cut the house wrap to a little bit longer than the need the length I need it and I've attached it with a couple staples up there just to get a hang.
Can you put two layers of Tyvek?
There is no problem with doing this. Housewrap is "breathable" by design so you won't trap moisture anywhere. You could build a wall with ten layers of housewrap and it would be more durable, not less.
Do you tape horizontal seams on house wrap?
Taping. All of the seams for the product should be taped according to manufacturer's instructions. Most house wrap manufacturer installation instructions have minimum horizontal overlaps of 4-6 inches and minimum vertical overlaps of 6 -12 inches. Most also require or recommend 1 in.
Do you seal the top of Tyvek?
Apply DuPont™ Residential Sealant, or recommended sealant, along the top/bottom of the wall approximately 2 to 3” from the edge. Press the Tyvek® WRB into the sealant using firm hand pressure or a J-roller. This will temporarily hold the Tyvek® WRB in place in prior to step 2.
How do I install Tyvek?
To install Tyvek, start by positioning a roll at the first stud on the outside wall, leaving a 12 inch overlap around the corner of the house. Then, unroll the Tyvek and secure it with nails every 12 inches along each stud.
How to use Tyvek on a wall?
Begin by placing an edge of Tyvek at one end of the wall, leaving a 6–12 inch (15–30 cm) overlap over the corner. If stud marks are printed on your Tyvek product, line them up with the first stud of your wall. The first roll should be plumb with the bottom edge of the wall.
How far should you overlap tyvek rolls?
Overlap the Tyvek rolls by at least 6 inches (30 cm).
How wide should I use Tyvek Flex Wrap?
This is a Tyvek product that can easily be stretched to cover the corners of window and door openings. Choose a width, typically 7–9 inches (18–23 cm) that can easily cover the sill and provide a couple inches (several centimeters) of overlap.
How far apart should I attach a Tyvek?
Choose your fastener depending on the material you are covering: Over masonry, temporarily attach with vertical strips of an adhesive containing polyethylene, elastomeric, or latex, roughly 24 in. (61 cm) apart.
What can you use to hold plywood back?
You can use a staple gun, or they make these things called cap nailers that you can use. They shoot out a small nail with an orange cap on the end that helps hold the ties back on the plywood.
What do you use to attach a roll of gypsum board?
Once the whole roll is attached, use cladding fasteners to attach it permanently. Over wood, gypsum board, and most other wall materials, use large head or washer head nails. Unless installing over foam sheathing, you may use staples with at least 1 in. (2.5 cm) crowns. 5.
How to make a roof that doesn't leak?
Step by step to roof/wall connections that don't leak: Wrap roof paper up the wall to backup the step flashing. Five inches up the wall is good for 4-inch step flashing. It should be high enough for visual verification that it was done. Cut the house wrap so that the roof paper can be tucked underneath.
How much space between siding and roof?
Many siding manufacturers require a 2-inch space between the siding and the roof, so 4-inch flashings are minimum. Doug answers the 'Yeah, but ...' question before it is even asked: "Kickout flashing and 4 inch step flashing are available at Home Depot, so there is no reason to not use them.".
How to make a WRB flap?
Cut the WRB Flush. Cut the house wrap flush—or even up to 1 inch past—all sides of the window . Cut 45 degrees extending outward from the top corners to create a flap that allows you to tuck the top flange of the window behind the WRB.
Why do you need to wrap your house?
House wrap matters because siding materials leak —brick, stone, wood, EIFS, vinyl—house wrap has to protect the structure from the siding leaks. Siding doesn't leak because it is bad, siding leaks because people install it. BOWA's advice: Because siding will leak, add a backup layer to collect and drain the rainwater.
How many staples per 9 feet of house wrap?
Fasteners: use a cap nailer because slap staples leak. Tyvek says you can use 4 staples per 9 feet of house wrap if you tape over them an apply the siding right away. But a cap stapler is better. Apply house wrap up the gables before installing exterior trim, even if the attic is not conditioned.
How to pour water into a taped seam?
" A great way to pour water into a taped seam is to tape halfway up a button-cap fastener. We train people to hold the fasteners up away from the seams, and to tape over any such caps."
Where is the pressure skirt on a window?
A pressure skirt is a strip of house wrap that is taped to the flange, extends about 12 in. past the window jambs, and hangs down in front of the sill flange.
