N. Clark, Uptown, Chicago – WickRight Parapet Venting and Repair Plan - 6-3-2020
Proposal for Round 2 of repairs on Uptown, 8-unit masonry building from WickRight General Contracting Proposals, dated 6-3-2021
1. Install WickRight Vented Drip Edge and receiver flashing under capstones in the following areas to stop water intrusion and kick-start the drying process.
2. Perform masonry maintenance to further stop leaking through the interior of the parapet walls and any exposed masonry at the roof level.
Please note: Your building has multiple issues which cause leaking, some more pressing than others. Round 2 will repair many of the leak sources at the roof level that allow water to seep water into the walls. We want you to understand that this building may never be perfect. We are going to advise against throwing money at problems that will persist and focus on issues that can be improved.
There will be more rounds of repairs that we will recommend, including, but not limited to, the removal of the balconies on the rear elevation, exterior sealant application, addressing flashings and caulk around windows.
Installation of WickRight Vented Drip Edge and Receiver Flashing under Capstones process:
- Remove capstones and any roofing materials
- Terminate roofing materials properly
- Install WickRight Vapor Permeable Membrane, WickRight Vented Drip Edge and Receiver flashing and rubberized self-adhered flashings
- Re-install capstones using backer rod, weep ropes and polyurethane sealant
Most areas can be repaired independently to accommodate your budget. However, while planning, please keep in mind that there are mobilization costs associated with starting and stopping work, including but not limited to the following costs per stop.
- Hoist set-up and removal
- Tool and materials load-in and removal
- Debris removal
- Dump fees
Parapet Venting Photo Color Legend:
1. Yellow lines – Cornice on front elevation of building - 18’ per side, total 36’ - The building cornice is made from a very porous stone.
There are 2 options to waterproof these sections.
A. Cover entire “limestone” capstones with sheet metal. This is the most effective option.
B. Install flashing under top capstone, apply waterproof sealant (70% effective) to porous material underneath capstone
2. Red lines – Upper north and south parapets
Remove capstones and any roofing materials, install WickRight Metal Coping Vent and new metal copings – 35’ per side, 70’ total
3. Light Green lines – Front stairwell - north and south parapets
Remove capstones and any roofing materials, install WickRight Vented Drip Edge – 23’ per side, 46’ total
Southwest corner of roof over the foyer may have truss damage. Truss repairs may be necessary, an estimate will be provided if repairs are needed.
4. Light Blue line – Foyer- raised, detailed cornice - Install WickRight Vented Drip Edge - 11’ total. Install sheet metal to cap edge of lower front of limestone to re-direct water away from building.
5,6 & 7. Royal Blue lines – Perimeter main roof, install WickRight Vented Drip Edge
- 5. North Wall 56’
- 6. East Wall 46’
- 7. South Wall 56’
8. Purple box – Elevator tower
Area appears to be repelling water fairly well. Lower priority. Install Capstone VRS - 40’ total. Repairs that can be postponed for now.
9. Orange box – Rear stairwell building
Area appears to be repelling water fairly well. Lower priority. Install WickRight Vented Drip Edge - 50’ total
Masonry Maintenance –
Spot grinding and re-pointing of interior of the perimeter parapet walls and any exposed masonry walls along the changes in elevation of the roof is needed, specifically the following exposed masonry sections - colored sections
- Interior side of #2 the east wall needs more attention than the north wall
- Both sides of the 2 parapet walls above the foyer #3
- Interior side of the East wall of the main roof parapet #6
Please Note: Spot grinding means that the masons will only grind out areas
where the mortar is failing, cracked or missing. They will NOT grind out ALL the mortar. There will be fine line cracks that the masons will NOT address with new mortar. Also, the walls will have different colors of mortar due to fading of old mortar vs. brightness of the new mortar – they may appear to be in worse shape that before the repair. Please rest assured this is not the case.
Apply ChemTrete PB-100 waterproofing chemical to all interior parapet areas that require sealant.
No Sealant manufacturer warranty or workmanship warranty will be offered, because we are not grinding, re-pointing and sealing the entire building. We will, however, ask the manufacturer’s technical representative to test the various areas and provide recommendations as to the amount of sealant to be applied to ensure the best covered/outcome possible, given the circumstances.
