James Hardie Shingle Panel Install

[Ponyboy]

The keyways of the shingle panels line up at several location on this four-plex building (new construction). JH installation instructions only state not to line up the keyways of subsequent courses, but does not spec an exact amount of offset. Installation instructions for the individual shingle product require an offset of 1-1/2" at the keyways. I recommended reinstalling the siding and of course the builder is having a sh*t fit. I am most concerned about the south facing gable which will get hammered with wind driven rain. The other areas are protected from the weather. I think this condition could lead to water leakage and should be corrected. What do you say?

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[hausdok]

I'd approach it from an additional angle; tell him that besides the obvious potential for wind-driven water to get pushed behind the siding (it's going to anyway, regardless) there's the fact that it looks like a window has been filled in poorly at that gable end in the upper picture.

ONE TEAM - ONE FIGHT!!!

Mike

[Ponyboy]

I'd approach it from an additional angle; tell him that besides the obvious potential for wind-driven water to get pushed behind the siding (it's going to anyway, regardless) there's the fact that it looks like a window has been filled in poorly at that gable end in the upper picture.

ONE TEAM - ONE FIGHT!!!

Mike

Window? I can't see that one. After reviewing the installation instructions and diagrams closely, it does not appear that any gaps directly to the building paper will result if the keyways line up. This is in contrast to this defect occurring in a shingle installation. Thus my concern about water intrusion may be over-the-top. I do think it would void the warranty if James Hardie was called out on a claim.

[Jim Katen]

. . . After reviewing the installation instructions and diagrams closely, it does not appear that any gaps directly to the building paper will result if the keyways line up. This is in contrast to this defect occurring in a shingle installation. Thus my concern about water intrusion may be over-the-top. . . .

I don't understand. The Hardishingles are 18" long. The exposure is 8". If you line up two keyways, you'll have 6" of exposed paper at the upper keyway, wouldn't you? It's exactly the same as it is with a shingle installation, isn't it?

- Jim Katen, Oregon

[hausdok]

I'd approach it from an additional angle; tell him that besides the obvious potential for wind-driven water to get pushed behind the siding (it's going to anyway, regardless) there's the fact that it looks like a window has been filled in poorly at that gable end in the upper picture.

ONE TEAM - ONE FIGHT!!!

Mike

Window? I can't see that one. After reviewing the installation instructions and diagrams closely, it does not appear that any gaps directly to the building paper will result if the keyways line up. This is in contrast to this defect occurring in a shingle installation. Thus my concern about water intrusion may be over-the-top. I do think it would void the warranty if James Hardie was called out on a claim.

Look right of center in the top photo. They've got 3/4 of those shingle panels lined up one above the other with the joints at either side aligned. It looks like when someone pulls out a window but then doesn't bother to stagger the claps or shingle joints around the window to disguise the outline of the window that had been removed. Of course there never was a window there but it still resembles that.

ONE TEAM - ONE FIGHT!!!

Mike

[asihi]

I don't understand. The Hardishingles are 18" long. The exposure is 8". If you line up two keyways, you'll have 6" of exposed paper at the upper keyway, wouldn't you? It's exactly the same as it is with a shingle installation, isn't it?

- Jim Katen, Oregon

Hi Jim,

In his first post he mentioned something about using the shingle panels. It does look like a poor installation (not to mention that it's plain old ugly), but the possibility of it leaking seems small unless the butt joints are aligned (which are not visible). Here's the installation instructions http://www.jameshardie.com/pdf/install/ ... e_west.pdf

They mention staggering the joints in the individual shingles, but not the panels. I agree with others about sending a picture to the manufacturer and getting their opinion.

[Ponyboy]

Hi Jim,

Yes, this is the shingle panel product and not the individual shingles, which I originally thought. The panels are 48" long. The installation instructions only state that the keyways not line up, but an offset in inches is not mentioned. Offset for the individual shingles is 1-1/2". The builder did talk with JH and was told that if any keyway lines up with a panel joint, then the panel joint would need to be caulked.

I was on site Saturday with the builder and an agent. We had four panels which we experimented with the layout. Truely the only problem area is at the panel joints. I looked at the installation again and could not find any areas of exposed panel joints and no exposed building paper.

We agreed it was a bad installation, but probably would not increase the chance of water intrusion. The builder also agreed to get an installation specialist from James Hardie on site to look at the installation and will perform any repairs specified by JH.