Helpful? 0

Liquid-applied flashing across dissimilar materials?

Can a liquid-applied flashing product like Zip System Liquid Flash or Prosoco Fast Flash span a gap between different building materials? The particular situation I can think of would be the application of liquid flashing to the inside surfaces of a window buck and out onto the face of exterior rigid insulation like foil faced polyiso. Seems like adhesion and flexibility could be suspect.

Asked by Brian C
Posted Fri, 07/11/2014 - 06:36
Edited Fri, 07/11/2014 - 06:58

Tags:

2 Answers

Select your preferred way to display the comments and click "Save settings" to activate your changes.
1.
Helpful? 0

Brian,
You should direct your question to the technical help department of the manufacturer of the product you plan to use -- or, better yet, you should consult installation instructions that most manufacturers post online.

For an overview of the topic, see this GBA article: Housewrap in a Can: Liquid-Applied WRBs. The article takes an in-depth look at products from Sto and DuPont. The manufacturers of these products require the use of fiberglass tape (and a special liquid-applied product) to span large cracks and dissimilar materials.

Answered by Martin Holladay, GBA Advisor
Posted Fri, 07/11/2014 - 06:55

2.
Helpful? 0

Cracks and gaps need flexible membranes for crossing and are never easy to do but not as difficult as trying to add peanut butter to jelly instead of jelly to peanut butter...
lunch time here ;)
aj

Answered by aj builder, Upstate NY Zone 6a
Posted Fri, 07/11/2014 - 12:37

Other Questions in General questions

Does HRV/ERV system reduce your electricity cost?

In Energy efficiency and durability | Asked by Chanpakong Visondilok | Nov 27, 14

Instrumenting a new house with moisture/temperature sensors?

In General questions | Asked by Madelyne Schnauser | Nov 27, 14

Most sesible heating system for a new house build on Vancouver Island

In Mechanicals | Asked by Blake Klopfenstein | Nov 26, 14

ThermoCore Roof SIPs - 8" Panels

In Green products and materials | Asked by Peter L | May 5, 14
Register for a free account and join the conversation


Get a free account and join the conversation!
Become a GBA PRO!