# Roof Design - Delete Corner

The "Delete Corner" function allows points of the surveying polygon to be deleted. The two adjacent edges of the selected roof surface are removed and the roof surface is closed again by a new edge.

<figure><img src="/files/263d8393844c10db53ceb264d4cbd32c2020e807" alt=""><figcaption></figcaption></figure>

For this function, select the point to be deleted. The adjacent edges will then be removed automatically and the roof surface will be closed again by a new edge. This works only as long as at least three corner points per roof surface remain.


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