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Flashing Details for Panel Siding

I am wondering if anyone has any advice on properly flashing window and door penetrations when using a panel type siding. My specific project specifies LP Smartside reverse board and batten siding in 4x8 sheets. The windows and doors are aluminum clad, with a 1x4 picture frame trim detail.
I am mainly concerned about the detail at the head, where it should be flashed. I would like to avoid just cutting out a hole in the panel for the trimmed and flashed unit, then relying mainly on a caulk joint, but maybe properly detailed, this is the simplest option.
Thanks for any help.

Asked by Pete Archer
Posted Thu, 02/09/2012 - 13:08

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4 Answers

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1.
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Pete,
It's not clear from your question whether this is new construction or a window replacement job.

Do these windows have flanges?

Answered by Martin Holladay, GBA Advisor
Posted Thu, 02/09/2012 - 14:36

2.
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This is for new construction and the windows are flanged.

Answered by Pete Archer
Posted Thu, 02/09/2012 - 15:38

3.
Helpful? 0

Pete,
Your question is unclear. I don't know why you would depend on a caulk joint. You want metal Z-flashing at the head.

Here are some details from Hardie (see below). You can see more details at
http://www.jameshardie.com/pdf/best-practices/hz/hz5-canada-panel.pdf

Panel siding window head 1 - James Hardie.jpg Panel siding window head 2 - James Hardie.jpg
Answered by Martin Holladay, GBA Advisor
Posted Fri, 02/10/2012 - 07:03

4.
Helpful? 0

Thank you, I had not seen that shim out detail before and seeing it drawn out now makes perfect sense.

Answered by Pete Archer
Posted Fri, 02/10/2012 - 09:38

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