Locate the uneven areas.
Show the installer where waves or changes in plane are visible. Ask for an assessment of the existing assembly rather than selecting a remedy from the finished appearance alone.
Siding · Tenino, Washington
Siding in Tenino selected in vinyl should include how the wall’s existing plane will be prepared. A new panel face does not automatically straighten bowed or uneven backing beneath it.
Ask the installer what causes the observed unevenness and which preparation is included. Keep an appearance allowance for the wall plane separate from an insulation option or an assumption that thicker panels correct the underlying condition.

Siding replacement
Have the provider identify the affected elevations and explain the proposed supporting surface. Agree which preparation is included and how newly exposed conditions will be assessed before the cladding is applied.
Show the installer where waves or changes in plane are visible. Ask for an assessment of the existing assembly rather than selecting a remedy from the finished appearance alone.
Ask what removal, backing correction or other assessed work the proposal includes. Keep that scope identifiable beside the new vinyl product.
Ask who confirms readiness before panels cover the wall. Have a changed condition and its proposed response documented while it is accessible.
Before work begins
Use Tenino’s Building Department to confirm review for the actual removal, backing or structural work proposed. An allowance for new finish panels should not conceal additional wall alterations from the applicant.
This guide specifies no shimming, framing repair or sheathing fastener schedule. The responsible provider must assess the wall and applicable product instructions.
Ask the installer to assess the backing and explain the preparation included. The new finish does not establish the underlying plane.
Have the provider explain the actual layer and its role. An insulation selection and correction of an uneven support are different scope questions.
Ask for the finding, proposed work and any revised review requirement before it is covered. Keep the changed scope connected to the affected elevation.
Show the elevations with visible unevenness and any existing findings about the wall backing.