These roof hatches by Phaeton99 converted to Sims 2.
I adjusted them to fit the grid: the small one is 1x1 tiles, the medium is 1x2, and the biggie is 2x3. Each size has an open and a closed version. The footprint for them all is only 1 tile, so OMSP wizards can go crazy with these.
I made the top and the base separately recolorable and gave them a few recolors, including some glass ones for the top that make these look less of a hatch and more of a skylight.
All of the other meshes are repositioned to the closed medium one.
These do not work like real windows, so you will need invisible floor tiles to use them as skylights without the weather getting in. This is intentional, as combined with ladders or loft stairs, these look like actual hatches sims can climb through.
I also added a sleeker edit of the 1x2 open mesh that clips less with ladders (no closed version of this one). The preview is included with the archive.
Download (SFS) (alternate)
The files are compressed. The closed meshes are around 450 polys and the open ones are around 1040 polys. The texture size is 512x256.
Located under build/architecture, the small ones cost §250, medium ones §300, and the big ones §350. If you don't have either Apartment Life or Mansion & Garden, you can use the object relocator to move them elsewhere in the catalog.
Thank you @lordcrumps for extracting the resources and @gummilutt for ideas and support ❤️