In this episode Mark helps to put our minds at ease about how tile roofs handle heavy rainfall and what you can do to help prepare it.

 

RoofLife014-117 Podcast Transcription:

Shayla: Welcome to the Roof Life of Oregon podcast. I’m talking today with Mark who is a roof specialist at Roof Life. And, Mark, today I want to talk about what happens when installers don’t consider the amount of rain that Portland gets. What does that do to the components?

Mark: So I’m going to talk about one roof in particular and that’s a tile roof. Historically, the tile roofs have been constructed or used in the arid climates, where there’s no rain. The tile works wonderful; it’s a great product. But bring it up to the northwest where we get thirty-plus inches of rain and things begin to change.

One instance in particular I’d like to talk about today is what I call the sagging underlayment. And I have in my hand a sample gutter. This is just a ten-inch sample of gutter I have. And I have underlayment. And the underlayment is what keeps you dry and keeps the water from coming into your house. One thing to note is tile is not a product that keeps tiles from coming into your home. Tile protects the underlayment. Tile protects your roof, but what does the work is the underlayment.

But what I found was that whenever I inspect tile roofs, I always look at the gutter and I move the tile up away from the gutter, and I always find or I generally find that the tar paper has cupped right before it goes into the gutter. That poses a few problems. Number one, the tar paper will wear out. It’s not made to cup or pool water. And I find that it actually deteriorates over time. When is deteriorates it cracks out and you the homeowner will not have water at the eave, rotting out that eave.

It’s a situation that arid states don’t even have to encounter. Up here we have just a lot of water pooling everywhere. So we found anti-ponding metal. What it does it when the tar paper is pulled like this, we actually straighten it out so water will rush from the top and down into the gutter. It’s an easy fix. It’s expensive. It’s time-consuming. It’s labor. The materials are not that expensive, but it’s just on the placement and having to redo something that should’ve been done, had the installer known long before they were installing the tile roof.

Shayla: And this is one of those things that Roof Life of Oregon has learned because you guys have worked on so many roofs in Portland over the past thirty years. So it’s really an easy fix, you’ve just got to know before you start.

Mark: Yeah, if the installer would have been able to think ahead. Oh yeah, we’ve got thirty plus inches of rain. It’s going to pool here, it’s going to weaken this tar paper or underlayment, if you will, and it is going to cause a leak. If they would have had a little bit of forethought, that repair would’ve been avoided. Yes, we do find this, and, yes, we do allow the homeowner to freak out, but be assured, we can fix it, we can help you and your roof is going to last a long time after we’re done.

Shayla: So don’t go into freak out mode. Mark says you’re fine. Just call Roof Life of Oregon and they will get it all fixed up for you. Thanks, Mark.


 


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