Why skylights are a common but solvable solar layout obstacle
What moving a skylight typically runs
Relocating a single skylight to a different roof location typically costs around 2,640 dollars including moderate structural complexity, while removing it entirely runs about 1,680 dollars and simply resizing it smaller costs around 1,080 dollars. The right choice depends on how much you value keeping that natural light source versus reclaiming the maximum usable roof area for panels. The roof azimuth orientation calculator covers the system sizing angle of the same decision.
Why relocation costs more than removal
Relocating a skylight means doing essentially two jobs in one, patching and reframing the original opening while also framing and installing a brand new opening elsewhere on the roof. Removal alone only requires the first half of that work, which is why it consistently costs less than relocation for the same skylight. Cross-check this against shading loss estimator before deciding.
Why skylight work always involves the roof's framing, not just the roofing surface
Skylight openings interrupt the continuous rafter structure that normally supports a roof deck, so removing or relocating one requires adding new framing members, headers, and supports to properly carry the load where the opening used to be. This structural dimension is why skylight work costs meaningfully more than a comparable patch of roofing without any structural interruption involved. This matches the guidance in the residential roofing code.
Weighing resize as a middle path
If a skylight only partially blocks an otherwise strong panel layout, resizing it smaller can reclaim just enough usable roof area without the full expense of relocation or the complete light loss from removal. This works best when the blocking overlap is modest, since a skylight that's fundamentally in the wrong spot for your layout usually needs the more decisive relocate or remove approach instead, a framing consideration PNNL's overview of roofing components and performance covers alongside other roof openings. The chimney removal cost estimator and roof vent relocation cost estimator cover other common obstructions worth clearing before finalizing your panel layout.
Any new or resized opening still needs to meet the residential roofing code's structural and flashing requirements, and once the obstruction is resolved, the shading loss estimator and the roof azimuth orientation calculator can help finalize your panel layout.