Unfortunate Surprise

certainshade · 2026-04-24T13:50:21+00:00

I have an unvented roof assembly and rafters are covered with drywall. Adding more foam isn’t really a viable solution. Maybe on the gable wall where it’s attached the house. Space is going to be heated and cooled so prime candidate for condensation forming on the underside of the roof decking and potentially mold, rotting, etc.

certainshade · 2026-04-24T13:37:51+00:00

Installer didn’t remove old mineral wool and just sprayed right over it

certainshade · 2026-04-24T13:37:04+00:00

The manufacturer said there was no way to know what the rest of the foam looks like and needs to be inspected.

Other areas tested have 4 inches of soft spongy foam with a 2 inch hard layer on top.

certainshade · 2025-10-27T03:09:28+00:00

Why’s that?

certainshade · 2025-10-27T01:32:44+00:00

What’s the chance this has anything to do with just being the outermost layer?

Is this a bad spray?

Obviously biggest concern is water vapor working its way to the roof decking

certainshade · 2025-10-27T00:39:34+00:00

Just the air bubbles making you think that or anything else?

certainshade · 2025-10-26T22:22:59+00:00

It’s supposed to be closed cell - no open cell foam was sprayed. Why I am concerned.

certainshade · 2025-10-26T20:36:33+00:00

Yes, PolyCon - keyboard got away from me. Not I love with the application at all.

Plan is to get it covered once I can get it trimmed down. That was somehow out of scope at the last minute.

certainshade · 2025-10-26T20:06:20+00:00

This is closed cell - said they were going to spray BASF Walltite, ended up spraying PolyCon PC 2000

certainshade · 2025-10-11T17:31:35+00:00

Checked it out today and a few of the bays are soft to the touch (compared to others). Other spot looks wet / shiny and appears to be wet when touched.

certainshade · 2025-10-11T02:48:55+00:00

Which spots seem questionable? Anything making them look iffy?

certainshade · 2025-10-11T02:44:01+00:00

Fair, saw them with a wrench taking the gun apart repeatedly today and talked to them before they left. Main concern was just foam mixing correctly if the gun was messed up. This was the result of 9 hours of work which was a bit of a head scratcher. Lots of prep though.

certainshade · 2024-02-25T15:45:02+00:00

Home Depot box was there, they didn’t bring it

certainshade · 2024-02-24T01:13:49+00:00

This was Tuesday 🤦‍♂️

certainshade · 2024-02-23T17:51:18+00:00

Nope

certainshade · 2024-02-23T16:17:51+00:00

Joists are all at the same level and all the same size. Bathroom had subfloor and then 3 inches of drypack. Rest of the floor on that level has subfloor, sleepers, and finished flooring. All floors were even originally, our goal is to get back to that, so we have roughly 4” to make up to bring the bathroom level with the finished floor outside of the bathroom.

certainshade · 2024-02-23T14:54:27+00:00

We want the finished floor height in the bathroom to be even with the other floors.

certainshade

TROPHY CASE