Before work starts
The project should begin with the home, not a generic material list. Existing siding, wall conditions, openings, roof intersections, trim, utilities and access can all affect how the work is scoped.
Removal and preparation
Where tear-off is part of the project, removing the existing exterior creates an opportunity to identify conditions that were hidden. Any repairs that affect the new installation should be addressed before the wall is covered again.
Water-management details
Flashing and drainage details around windows, doors, penetrations and roof-to-wall intersections matter regardless of siding brand. The selected product's current installation instructions should govern product-specific clearances and fastening.
Siding, trim and finishing
Once the wall is ready, siding and trim are installed according to the project design and applicable requirements. Mixed profiles such as lap siding with a vertical gable require intentional transitions rather than improvised field details.
Planning a James Hardie installation
If fiber cement is your preferred material, review our James Hardie siding installation guide and contractor checklist.
Frequently Asked Questions
Does every siding project require full tear-off?
No. The correct method depends on the existing assembly, selected product and project requirements.
Why are flashing details important?
They help manage water at openings and transitions, where exterior assemblies are especially sensitive to detailing.
Should installation instructions be checked for the exact product?
Yes. Product-specific requirements can differ and current manufacturer instructions should be used.