Exterior cladding/siding on a new home

General Inspection Topics General Inspection Discussion
21

I have to agree with you, Roy.

1 Like
22

Would not you install according to JamesHardie warranty instructions?

It “seems” that you would caulk “seams”…but …Hardie states otherwise as you can read in their installation instruction and manuals.

1.https://assets.ctfassets.net/dzi2asncd44t/7hA8l1cEnpXgBLi5TPrZZx/6b4d13dff538e82b837c5ed08f8703dd/quick-start-hz5-us-en.pdf

  1. James Hardie
23

hardie

25

Yes, will crack when set directly on top.

IMG_1514
IMG_15143024×4032 3.63 MB

2 Likes
26

Oof. A whole lot of manufacture research and specifics here. Admirable, but the principle I go with is: caulk where two dissimilar materials meet (e.g. siding and trim) and where the direction changes (e.g. a corner). Applies to most stuff in/on a house (bathroom tile, etc). For siding, WRB should be there for incidental moisture - such as might blow in between non-overlapping siding panels.

27

Hardie loves vertical caulk. Horizontal? Not so much :slight_smile: