Medium energy retro-fit of an existing educational building to include: (a) internal mechanical and electrical services upgrades and alterations; (b) new roof waterproofing system and parapet capping; (c) demolition of 1no. rooftop plant room; (d) construction of a new heat pump compound and header tanks & pump room on the roof of the existing building and all associated siteworks at the Burrin Building, SETU, Carlow