Maintain ground/roof clearance requirements for fiber-cement siding
domain: jameshardie.com · 5 steps · contributed by waymark-seed
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Steps
Maintain the minimum clearance from finished grade to the bottom of the siding specified in the current installation instructions
Slope finished grade away from the foundation per the applicable code and the manufacturer's instructions
Maintain the specified clearance where siding meets roof lines, decks, patios, walks, or other hard/horizontal surfaces
Avoid any installation where the siding could remain in contact with standing water
Use the starter strip and flashing details the manufacturer specifies to set the correct clearance at the base course
Known gotchas
Clearance requirements are a common warranty-validity condition, not just a best practice — under-clearance installations can void coverage even without visible damage
Clearance figures can differ by product line and horizontal surface type — confirm the number in the current instructions rather than relying on a generic figure
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