Coordinate a roof replacement with future solar plans

Start with the roof and the intended solar horizon

Tell the roofing team whether solar is planned now, being considered later or already installed. Ask the solar professional to assess roof suitability and the likely installation arrangement. DOE’s homeowner guide identifies roof condition and remaining replacement timing as relevant considerations.

If the solar plan is uncertain, separate sensible coordination from speculative spending. Ask which decisions need to be made during roofing and which can wait until a solar design exists. Avoid adding unneeded attachments or penetrations for a system that has not been designed.

Have the two scopes meet on one plan

Request coordination of roof geometry, attachment locations, flashing, equipment access and service routes. The appropriate professionals should assess structural and electrical needs and the applicable approvals. The owner’s role is to confirm that these responsibilities have been assigned.

Ask how the proposed roof system and solar attachment approach work together. Product names alone do not settle compatibility. Have the teams identify the relevant installation documents and obtain any needed manufacturer clarification.

Address existing solar before roof removal

For a roof with solar already installed, arrange the solar scope before the roofing schedule is fixed. DOE notes that roof replacement involves removal of the solar equipment over the work area. Request a complete plan from qualified providers rather than assuming the roofer will disconnect or reinstall it.

• Who coordinates qualified removal, storage and reinstatement?
• Who checks the roof and attachments before the array returns?
• How are damaged or obsolete components handled?
• Who documents commissioning and any service interruption?
• Which party responds to a later leak near an attachment?

Read warranties and compare combined costs

Ask each warranty issuer how the proposed work affects its terms. Keep written answers tied to the exact roof and solar systems. Separate removal and reinstatement, roof work, solar changes, approvals and other necessary work in the budget.

Coordinate schedules and handover records so neither contractor relies on an unverified assumption about the other’s completion. The result should be a roof and solar plan with clear ownership at every interface. Do not count assumed energy savings, incentives or extended service life as guaranteed offsets to the project cost.