What is the rule of someone that leaves Tyvek house wrap on their house for two years before they put their finish siding on? I know it breaks down after so much time exposed to UV rays. At what point does it become totally ineffective?
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House wrap
- Thread starter alaskajoe
- Start date
DuPont does not provide any specification within their Product Guide Specification nor Product Information Sheet. (Both linked)
On DuPont's FAQ page, they have the following:
How long should Tyvek® WB be exposed before it is covered with siding?
Tyvek® HomeWrap® and Tyvek® StuccoWrap®, Tyvek® DrainWrap™ and Tyvek® ThermaWrap™ should be covered within 120 days (4 months). Tyvek® CommercialWrap®should be covered within 270 days (9 months).
On DuPont's FAQ page, they have the following:
How long should Tyvek® WB be exposed before it is covered with siding?
Tyvek® HomeWrap® and Tyvek® StuccoWrap®, Tyvek® DrainWrap™ and Tyvek® ThermaWrap™ should be covered within 120 days (4 months). Tyvek® CommercialWrap®should be covered within 270 days (9 months).
Thanks for the reply. I have seen those numbers but it doesn't give much teeth to tell someone they have to re wrap their whole house. DuPont won't come right out and say that after this said time they will no longer stand behind their product. So it comes down to the AHJ determining whether the wrap is good or not. The words "should be covered" is pretty weak.
Other thing it is there house, or it alerts the builders client
You might document the fact, how long it has been exposed, along with manufacturer recommendations.
Just like other building material exposed to the weather forever
You might document the fact, how long it has been exposed, along with manufacturer recommendations.
Just like other building material exposed to the weather forever
I would go with the manufacturer’s recommendation and write the correction to replace the Tyvek. My corrections can be overruled and once they ask for relief it becomes someone else’s decision. If the correction was overruled I would attach a copy to the permit file.
ADAguy
REGISTERED
defect claim waiting to happen.
Who would make the claim? The homeowner that proceeded with the wrap that was exposed to the elements for 2 years? rejected
steveray
SAWHORSE
Dupont also sucks at "temporary fastener" guidance.....If you are not siding over it in some undetermined amount of time, "special" fastening attention is required....They want to sell product, not help people...
ADAguy
REGISTERED
It depends, of a SF it is one thing if built for resale, if part of an HOA it is a bigger issue
They want to sell a quality product that makes peoples homes and lives better, and they want to earn a profit doing that. They establish reasonable procedures for properly using the product, and in return they provide a warranty. If an end user fails to follow the procedures, why should the manufacturer be expected to honor the warranty?
steveray
SAWHORSE
The problem starts when they want us to enforce their installation instructions by getting their material into the code, but then writing the instructions so loosely that you could drive a truck through them....That may be the way the entire WRB industry works, but I have been in the same position as Joe with that particular product and it stuck in my craw a bit....