The interactive drawing shows the traditional east elevation of the pyramid. If you switch to the
north elevation and then zoom into the main chamber area of the building you can see the roof voids above the main chamber which overhang the chamber on the east side by the amounts determined in the Great Pyramid papers, when the architects red paint marks are used to align the chambers.
It will be particularly difficult, by design, to verify that these roof chambers are aligned as shown because the stones that make up the roof of one chamber are not the same as the floor stones of the chamber above as was previously assumed. The only practical method is