Solar buildings in Gårdsten - Gårdstensbostäder

New energysolutions combinedwith renovationThe proposed general measures, produced in collaborationwith the tenants, were complemented anddeveloped during the project’s enquiry and systemphase.To provide system documentation a basic alternative,in most cases covering mainly necessarymeasures, was compared with a more expensivealternative, which entailed energy savings within abudget for additional investments.The project finally came to include carefully plannedrenovation where the majority of the additionalcosts for energy measures are covered by the reductionin operating costs.The energy-related measurescan be summarised as follows:· Conversion to exhaust air ventilation in the balconyaccess buildings and the installation of heat recoveryon ventilation in the slab blocks· The glazing-in of balconies in connection withrenovation (damaged concrete elements)· Replacement of the inner windowpane by low emissionglass in the existing double-glazed windows· Solar collectors integrated into the roof inconnection with roof renovation· Additional roof insulation in connectionwith roof renovation· Additional insulation of the gables in connectionwith facade renovation· Insulation of the bases in connection withrenovation of the drainage system· New washing machines and drying roomequipment connected to the hot water system· New energy-labelled white goods as partof the refurbishment of the apartments· Installation of presence-controlled lightingin the common areas· Installation of a central control andsupervisory system· Introduction of individual metering forelectricity and heating as well as hot and coldwater