Exclusive roof rights in builder flats

Some commercial businesses are being operated in my building, which was built around 10 years ago as a bungalow. Later the owner converted the house to flats and sold each flat as a separate unit. Out of 8 flats in the building and one basement, 5 are occupied by resident individuals and rest are given on lease for commercial purposes by the owner (the property is in a residential area). The first owner of the top floor flat, bought it with roof rights, as is mentioned in the sale deeds, below is quoted the relevant extract of sale deed- “Whereas the first party/ seller is the absolute owner and in possession of “x” floor with roof rights of built up property “y” consisting “z” fitted with separate required utility connections in running condition, alongwith proportionate land rights of the land under the said property with the free hold rights of the said property.” Does the owner have exclusive roof rights with only water tank access for other residents?