Siding & Exterior

The order HardiePlank lap siding goes on

HardiePlank goes on in order: housewrap and flashing first, then a dead-level starter strip, then courses that are blind-nailed near the top edge (the next course hides the nail) and climb the wall with butt joints staggered off-stud and flashed behind.

Source: Install order per James Hardie best-practice / IRC R703

What this diagram shows

A four-panel walkthrough of HardiePlank fiber-cement lap-siding install order. Panel 1: housewrap over sheathing with window, door and kickout flashing installed first. Panel 2: a dead-level starter strip is set and the first course lands on it. Panel 3: a section shows each course blind-nailed near its top edge so the next course laps over and hides the fastener. Panel 4: courses climb the wall with butt joints landing off-stud, flashed behind, and staggered from the joint in the course above.

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Hardieplank Installation Guide

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