building type: A Minnesota Condominium Association
Location: St. Paul, MN
Project Team: Gittleman Construction & Maintenance (GCM) – Construction & Hvac Divisions
GITTLEMAN EXPERTISE: General Contractor // Project Management // HVAC Replacement
The Mississippi Flats Condominium Building is a five-story building that consists of 93 Units. The condominium experienced water intrusion behind the siding. During the project planning, it was determined that replacing obsolete HVAC units in conjunction with the façade replacement would effectively save the Association an estimated $7,500 per unit versus replacing the units one at a time over the course of the next 5-7 years.
SPECIFICS OF THIS PROJECT:
Original façade construction consisted of a combination of Hardie Panel siding and corrugated metal panels. During pre-project investigation it was determined that the weather barrier installation behind the siding was deficient and was resulting in localized water intrusion at the following locations:
The façade repairs consisted of:
Original construction also consisted of the installation of SkyMark vertical heating and cooling units. This type of mechanical heating/cooling system was present at 81 homes. During pre-project investigation it was determined that the original installation of the wall sleeve was deficient and allowed air and vapor bypass to occur. During cold temperatures, this condition was susceptible to allowing condensation to form on the housing of the mechanical equipment and within the mechanical closet of each unit. It was also determined that SkyMark was no longer producing replacement and repair parts – so once a unit reached the end of its useful life (i.e. in 5-7 years) the unit would need to be fully replaced. However, replacement units in the marketplace require a different wall opening size. To replace respective HVAC units in the course of time after completion of the façade project, would require cutting new openings in the new façade and that endeavor would cost as much or more than the cost of the new HVAC unit itself. In the final analysis the Association decided to replace the HVAC units in concurrent fashion with the façade replacement project.
The mechanical equipment replacement consisted of: