Our process · Siding preparation

The work beneath the siding matters.

Finished siding gets the attention. Long-term performance depends on the inspection, water management, insulation, transitions, and installation details behind it.

See the preparation process

Metro Detroit home prepared with continuous orange rigid foam before siding installation — Full-exterior wall preparation before siding

A coordinated wall assembly

Siding is the final layer—not the entire system.

Every home begins with different materials and existing conditions. Fuse reviews what is present, identifies areas that need attention, and coordinates the layers beneath the siding before they are covered.

Existing-condition review
Rigid foam or approved substrate preparation
Water-resistive barrier integration
Flashing, trim, and transition planning

Aerial view of a house covered with continuous orange rigid foam before siding installation — Continuous rigid-foam preparation across the exterior

A continuous exterior layer

Prepare a stable surface for the new siding

Before the finished cladding goes on, the wall assembly needs a sound, consistent surface. Continuous rigid foam can help create that plane while adding insulation. The appropriate preparation depends on the existing wall, the selected siding, and the project-specific assembly.

Rigid foam fitted around a window opening before the remaining siding is installed — Rigid foam and window preparation

Openings and edges

Fit the preparation carefully around windows

Windows, doors, corners, and penetrations interrupt the wall surface and require careful coordination. The insulation, water-resistive layer, flashing, trim, and siding must work together instead of being treated as separate details.

Close view of siding preparation and metal components at a roof-to-wall transition — Roof-to-wall transition preparation

Transitions

Pay close attention where walls meet roofs

Roof-to-wall transitions and other changes in material are vulnerable areas. We plan the sequence of the weather barrier, flashing, trim, and siding so water can drain outward and the finished materials have the clearances they need.

Housewrap, lower-edge trim, starter components, and partially installed horizontal siding — Housewrap, starter components, and siding sequencing

Installation sequence

Establish the lower edge before building upward

Housewrap, lower-edge trim, starter components, and the first siding courses establish the alignment for the wall above. A deliberate installation sequence helps keep courses straight and preserves the drainage path behind the finished cladding.

Before the wall is covered

Review the details. Then install the finish.

Before cladding is completed, Fuse reviews the wall preparation, openings, transitions, starter alignment, and planned trim details. This gives the parts behind the siding the attention they deserve while they are still visible and accessible.

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