by Tattersall Square Condominiums
Residents in this 90-unit condominium reported that dropping debris and dripping salts from the roof of the community’s shared below-grade garage were damaging their cars.
H|A|G confirmed that the waterproofing membrane on the spartan rooftop common courtyard above had reached the end of its service life. The need for replacement garage roof waterproofing required the removal of topside damaged paving, aging planters, and a water feature. Additionally, first-floor residents complained that their courtyard-facing windows provided them no privacy.
H|A|G designed and provided construction drawings for the renovated courtyard, and assisted the owner with budget estimates, the competitive bid, permitting, and construction administration for:
- Structural reinforced concrete deck repairs and a 20-year-material-warrantied waterproofing system for the 22,500 sq. ft. garage roof/plaza.
- The selection of the sand bed-set brick paving system for ease of maintenance to access waterproofing in the event of future work and aesthetics.
- The design of intensive and extensive landscaping around natural pathways through the site, and arranged to provide more privacy to first-floor residents with windows facing the courtyard.
- The design of a new shading pergola, reflection pool, path security, and landscape lighting.
Download PDF
by 3900 Lake Shore Drive Condominium Association with DK Condo Building Management
[rev_slider alias=”high-rise-sundeck”][/rev_slider]Located along the north lakefront, this 26-story residential tower experienced widespread roof leaking from an aged rooftop observation deck. H|A|G further determined that the deck structure was overloaded by the weight of the deteriorating surfacing materials.
All roof materials were removed down to the roof structure, and structural repairs were performed to the deck. A new roof and south-facing common amenity were designed, bid, and permitted, consisting of:
- A replacement 20-year-warrantied waterproofing system for multiple roofs with increased, energy code compliant roof insulation.
- A new 20-year-warrantied natural wood finished deck for all occupied areas.
- A new life-safety tie-back perimeter system for facade maintenance and window washing.
- New planters, containing low-maintenance intensive and extensive landscaping, with an integral irrigation system.
- A new granite food preparation counter and non-corroding metal sunshade for furnished areas.
- New low-glare safety/landscape lighting, controlled by adjustable timers.
Download PDF
by Parkway Properties Inc.
The Illinois Center’s entry plaza, located above a retail concourse, experienced heavy pedestrian traffic and intermittent maintenance. Latent construction defects and a series of ill-planned renovations had damaged the deck’s waterproofing over time and allowed the rapid deterioration of the existing poured concrete walking surfaces, destroying the original character of the historic plaza. As a result, water leaks were reported at multiple locations within below-grade lease spaces. Water had invaded plaza lighting conduit, shorting fixtures. Under-sized deck drains created areas of spotty ponding and swamped landscaped planters.
H|A|G was initially employed to temporarily fix spot waterproofing failures, then ultimately trusted to draw up redesign options for a comprehensive, cost-effective plaza remodeling that respects the character of the existing buildings. This work included:
- Planning the demolition of the 45,000 sq. ft. failed paving system and waterproofing materials to coordinate for future phased work, and directing the repairs to the existing concrete structural deck.
- Comprehensive design of the replacement 20-year-material-warrantied/3-year-labor-warrantied waterproofing and custom sand-bed set precast concrete paver system, selected for their appearance and ease of maintenance.
- Design of replacement glass perimeter quardrails, recladding of above-grade planters, plus new efficient path and landscape lighting, integrated flagpoles, fixed seating, and monumental signage.
- Preparation of construction bid and permit documents, and competitive bid negotiation services with the owner.
- Construction administration services and control of mock-ups to ensure consistently high standards of quality.
Download PDF