How to Caulk Hardiplank Joints

Effective caulk repair on aging cement board siding butt joints, featuring TX-1 caulking. Butt joints are the points where two siding pieces meet end-to-end. Proper caulking and sealing at these joints are crucial to prevent water infiltration and maintain the integrity of the siding system. Watch now for a resilient weatherproof technique. Diagnosing and addressing common issues with older siding. Keep in mind that newer Hardiplank siding does not require caulking at the butt joints.

[@darrenwalker2365]

OSI

[@betterpainting6166]

James hardie does not recommend you caulk butt joints at all, I’ve been a painter for years and we do not caulk those we only caulk end joints and corner guards. There is a few reasons you don’t. One is because the expansion of hardy plank and another is when you caulk and paint over it the paint fades over time and the paint on the caulking won’t fade you will be left with lines that are darker than the siding and cracking/separation on the butt joints.

[@xxlxpman]

Evidently you didn't watch the whole video.

[@TzNuts]

Lol hardy is such garbage.