Window flashing --

[ldapkus]

In the Building Science IR Class we were told that Tyvek must not be installed upside down or it will not work as designed, chemical exposure (from nails) also degrade it.

[Marcel R. Cyr]

Don't know about that Linas, this is all I found.


Can DuPont™ Tyvek® be used with the lettering facing in?

DuPont™ Tyvek® HomeWrap®, DuPont™ Tyvek® StuccoWrap®, DuPont™ Tyvek® DrainWrap™ and DuPont™ Tyvek® CommercialWrap® are equally effective in both directions. However, DuPont™ Tyvek® StuccoWrap® and DuPont™ Tyvek® DrainWrap™

have a specially engineered surface that should be placed with the grooves in a vertical direction.

Why should I tape seams in the DuPont™ Tyvek®?

Taping the seams with DuPont™ Tyvek® Tape gives you the best Tyvek® to Tyvek® adhesion, optimal protection against air and bulk water penetration, and extra durability protection during the building’s construction phase.

What type of fasteners is recommended when installing DuPont™ Tyvek®?

DuPont™ Tyvek® can be installed using a variety of fasteners depending on the application. To attach DuPont™ Tyvek® to wood, insulated sheathing board or exterior gypsum board, use nails with plastic washer heads, such as DuPont™ Tyvek® Wrap Caps. You may choose to use wide staples with a minimum 1” crown. For steel frame construction use DuPont™ Tyvek® Wrap Cap Screws.

All I know is that it is not any harder to install it with the lettering right side up.
Maybe it is because they can not read.

Marcel

[Larry D. Kage]

Originally Posted by mcyr

Don't know about that Linas, this is all I found.


Maybe it is because they can not read...

...english.

[Larry D. Kage]

Originally Posted by mcyr

Linda;

Some of the illustrations in this link might help explain how some of this exterior trim should be executed.

http://www.windsorone.com/windsoronefull.pdf

Hope this helps.

Marcel

Nice reference, Marcel.

The pictures are helpful...well okay, I need them.

[Marcel R. Cyr]

Originally Posted by lkage

...english.

Funny;

I guess that is what Linus said. "No habla egles" ha. ha.

Marcel

[Barry Adair]

If you've ever worked the trades and around these people.
Reality is many "no habla nada". Education under third world conditions is a luxury, not a necessity, many cannot afford.
They are plying some labor efforts as soon as they can walk on their own and assist the rest of the family in some way.
Not unlike what rural America was and still is in some regions.

This is an old but poignant statement on America http://www.wsws.org/news/1998/oct1998/ill-o14.shtml

[Carl A. Brown]

In the Building Science IR Class we were told that Tyvek must not be installed upside down or it will not work as designed, chemical exposure (from nails) also degrade it.


And the tyvek reps in the KC metro will tell you no matter right side left side inside out side it does not matter it will still work!

[Carl A. Brown]

As for the ("no habla nada". )

I have heard way to many americans say F it its not my house.

[lfoster]

Thanks, folks.
I think there should be a drip cap on top of the window trim,,, but the builder is not of the same opinion. Will advise buyer to keep maintained.

Marcel, that is a good link.

Thanks for all the response.
Linda

[relliott]

Marcel I agree .Good PDF to have.

[Carl A. Brown]

What the inside can and might look like!

http://www.badstucco.com/badpaper.html

[Brian A. MacNeish]

Originally Posted by cbrown1

Linas,

They also say to tape all the joints on the tyvek and that traps moisture in the assembly once it gets in. It also traps moisture in thats from in the house trying to get out. ie: vapor after it condenses! In the winter time for you and me. OSB for sheathing?

Mr. Brown:

You must go to a good source of specs and compare the permeability of Tyvek, Typar and tarpaper. I think you will find that Tyvek is by far the more permeable and able to let the moisture "breathe" (proper term is "diffuse") out of the wall.

From a report I did for an architect in a code ruling last fall:

"The new walls have Typar as the sheathing membrane versus 15 lb. tarpaper. The permeability of the Typar is 11.7 perms versus 8 perms for the tarpaper. Although the Typar is slightly more permeable than the tarpaper, it is in the same order of magnitude and not a number of times more permeable than a product such as Tyvek at 58 perms"

[Carl A. Brown]

Brian,

With all due respect.

I have seen water trapped in the tyvek with my own eyes!

A moisture barrier should never have the horizontal joints sealed.

And should never be put on behind flashing and have the flashings taped to it!

Air barrier maybe not moisture barriers!

It is one or the other.

[lfoster]

Carl,
It would be interesting to follow you around to gain knowledge. Too bad you're so far away !
Linda

[Carl A. Brown]

Linda,

My opinions come from 28 years of climbing on scaffold, on and around houses doing stucco!

The material mfgrs. do not seem to understand not just one product makes a house and they all need to work together for the end product.

There are alot of problems that are in place long before the stucco subs set foot on the job.

They have alot to do with the codes you posted!