That's a good idea. If you do it well, you must work hard. Solution: (for reference only) 1. Find a wall breaker to make a hole in the roof. If the roof waterproof is SBS modified asphalt waterproof, first cut the coil into small holes (X-shaped), not big, then turn it over and cut it with a cutting machine, and then smash it. Be careful not to damage other waterproof materials. If concrete is self-waterproof, it is generally easy. 2. Just make a skylight for the glass doors and windows. It is recommended to make safety glass, sandwich or toughened (not easy to hurt people). Install the skylight, which is the key. After the skylight is fixed, first use concrete+expansion agent (or plug or rubber water stop) to seal the periphery of the skylight, then roll the coil on the side of the skylight and cut off the excess. If necessary, reinforce (first lay a layer under the original SBS) and then lay the original SBS. * * * Note: If the roof is decorated with tiles, the tiles around the skylight should be reinforced to avoid accidents.