How To Install Blueskin Window Flashing

4.02 Self-Adhered Flashing Installation Procedures. 4.04 Blueskin® VP160 Installation. Standard Practice for Installation of Windows with a Mounting.

Blueskin ®WB Window and Door Flashing is a self-adhering membrane consisting of an SBS rubberized asphalt compound, which is integrally laminated to a blue-engineered film. The membrane is specifically designed to be self-adhered to a prepared substrate. Features • Excellent adhesion to prepared substrates of concrete, concrete block, primed steel, aluminum mill finish, anodized aluminum, galvanized metal, gypsum board and plywood • Impermeable to air, moisture vapor and water • Easy to install peel and stick application, no flame required • Thickness controlled at point of manufacture • Membrane is self-sealing when penetrated with self-tapping screws or nails Packaging • Thickness - 35 mils • Roll length - 50 ft • Roll width - 12', 9', 6' and 4'.

Thanks so much for your replies. The Flexwrap by Tyvek is butyl rubber and not normally compatible w/asphalt but I have heard that the #15 doesn't have enough to worry about. Down here we are required to cover window flanges, sides and top with sticky tape by code and I first put the flexwrap on the window sill and 6' up both sides and then mold it down past the sill onto the wall on the bottom, then install the window, then cover side and top flanges with sticky tape and then lap the felt over the top. Under the double layer of felt is osb 'windstorm'. I'm glad to hear from you both because I've read the things you've written in different posts and really respect your opinions. I actually didn't really worry much about any of this until I started reading alot here and studying about drainage planes on walls.

Now that I want to do things the very best way, I'm almost having to tie the framer up and force him to do it. He wants to use Typar or whatever tyvek makes for stucco and I do not. I want the 2 layers of felt. I do like the idea of 30 in back and 15 on the top. Since I'm required to use the tape over flanges and want to have the felt under the flanges - if it doesn't stick well, do you think it would be all right to cap nail it on?

And then put the 2nd layer of felt over that? When its warm out it will.

When its cold nothing sticks to anything. Im with Tom, if its lapped and installed correctly the sticking to the felt is secondary. It will always stick to itself. When ever we have to deal with stucco the stucco sub does there wrb. I use 15 lb about two ft out from opening then wrap it in to the opening. Install vicor sill pan, silicone top and sides. Install window and tape sides then top.

This gives the stucco guys enough to deal with so they can lap there paper to mine hoever they want. Not every window out there with no sticky tape flashing self destructs,we spend a lot of time and money on beveled pans flexwrap and caulk when maybe every window doesn't actually require it.i know.warranty Id agree ive put windows in shops, barns, houses when I was a kid with a neighbor. He never did anything but use felt, never has had any problems and thats been 20+ years with big windows western exposure. Some guys use vicor and blue skin and think its a fix all cure all.