|PROJECT:||ST JOSEPH´S HOSPITAL, SLIGO|
|WORK:||RE-ROOF WITH DRYSEAL
INSULATION WITH KINGSPAN TR26
DUKMAT SAFETY WALKWAY
The highly regarded St Joseph's Surgery and Diagnostic Centre in Sligo, Ireland was urgently in need of a new roof covering over the main hospital building. After several months of discussion, the hospital chose to use the Dryseal component based GRP roofing system and PQ Fibreglassing as Irelands approved and fully trained installer to complete the re-waterproofing and insulation upgrade works. The 750 m2 area comprised six roofs covered with failing rock asphalt on the original concrete substrate.
The Hospital was closed for one day only, allowing the car park to be used for a crane to load out all delivered materials to roof level, ensuring that roof level production would be maximised.
Over six long weekends, our dedicated team of seven installers worked through the hospitals standard hours of closure, to ensure that the day-to-day function of the building would not be compromised.
One of the main aims of the project, in addition to the replacing the roofs waterproofing system, was to reduce the hospital's considerable heating costs. This was achieved by introducing two layers of 50mm Kingspan TR26 insulation to form a 'warm' roof build up underneath the Dryseal membrane, using the original asphalt as a vapour check layer. Eight roof lights with new high thermal efficiency triple glazed Velux units were renewed to complete the insulation efficiency.
The addition of DukMat safety walkway matting and self-weighted perimeter safety handrail ensure that the newly installed Dryseal roof can be safely inspected and maintained to ensure its longevity. With a 20 year insured guarantee that can be extended in year 19 by refurbishment of the top-coat, the Agrément certified system can have its life extended almost indefinitely.
A 35% reduction in heating oil costs proved an immediate positive outcome of the roof's insulation upgrade. Having used the Dryseal Flat Sheet membrane system finished in dark grey to eliminate all roof leaks, the hospital's Premises Manager referred to the project as a "perfect" result.
Waterproofing is ideal for commercial property being easy to maintain, not easily damaged and can be simply repaired and refurbished 'in situ', thus reducing landfill costs. GRP will also withstand extreme weather conditions; Dryseal's Agrément Certificate 95/3114 was recently revised to full 'zero falls' accreditation by the BBA after spending 6 months underwater at 60°C, and then being subjected to a series of rigorous destruction tests – a process that broke the BBA's test machine!