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Waterproofing and Caulking of Penthouse and Roof at Caliguiri


Location
Pennsylvania
Publication Date
07/11/2019 07:19 AM EDT
Closing Date
07/19/2019 10:00 AM EDT
Issuing Organization
Pittsburgh City Housing Authority
Solicitation Number
Description

Specifications include, but are not limited to: TO FURNISH ALL SUPERVISION, LABOR, MATERIAL, SCAFFOLDING, PERMITS AND EQUIPMENT FOR THE FOLLOWING PROPOSED WORK: • ANY AND ALL PERMITS ARE THE RESPONSABILITY OF THE CONTRACTOR (INCLUDING THE POSSIBILITY OF SHUTTING DOWN THE STREET) SPOT POINTING: Spot pointing the four exterior walls on the penthouse • All of the exposed masonry with in these areas of work shall be visually inspected by experienced mechanics. • Those joints found to be missing, open, broken, or otherwise judged unsound would be repointed. Defective mortar would be removed and the joint slot cleaned prior to installing new mortar. • New mortar would be colored or toned, if necessary, to blend with adjacent sound mortar as closely as possible. • Remove unused hardware and seal holes. CAULKING: • Cut out and re-caulk the flashing joint on each wall of the penthouse • Clean joints to prepare for new joint sealant. • Install a solid bead of Dow Corning 790 Silicone (or equivalent) to fill the joint void. Sealant shall be Tooled to insure full compact for side-to-side adhesion. Color of sealant shall be gray. WATERPROOFING • Apply a high-quality proven water repellant system such as Prosoco PD Siloxane (or equivalent) on the exterior block walls of the penthouse. • Apply two (2) coats (wet on wet) of the non-staining transparent sealer. The Siloxane sealer will penetrate into the surface and bod chemically to provide long-lasting protection against wind-driven rain, while still allowing moisture vapor to escape (breathable). By reducing the entry of water into the surface, it also reduces the problem of efflorescence, dirt build-up, freeze-thaw damage and acid rain deterioration. • All dirt and debris created as a result of performing specified work would be cleaned up and removed from the premises and the work area left in a neat condition.

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