Large square gaps in insulation between two skylights — deliberate or a mistake?

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8 Dec 2025
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Ireland
Roof type: pitched, tiled roof over a kitchen extension.

Issue: there are two square gaps in the insulation between the skylights, each roughly 400–450 mm on a side. The gaps are clear openings in the insulation (not just compressed or thin spots).

My question - Is there any valid reason a builder would leave deliberate gaps like this, or is it likely an installation error?
 

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