Wentzville Middle School and Heritage Elementary Tuckpointing

Wentzville Middle School Tuckpointing Specs and Scope:Bio clean Brick and LimestoneBio Clean all masonry with Enviro Klean by Prosoco and hot water, approximately 180 degrees at no more than 400 p.s.i.Tuckpoint 5% of BrickGrind with a dustless vacuum per OSHA GuidelinesGrind min. 1⁄2” in depth or to sound mortarLightly rinse ground mortar joints to remove any contaminants or loose materialInstall Type “N” mortar.Tooling, texture, and color to match existingMortar to set no less than seven (7) days prior to washing with detergents to expose sand Cut out and recaulk window perimetersRemove existing sealant from window perimetersClean and prep both edgesSolvent wipeInstall backing to the proper depthApply silicone sealant with no less than 100% elasticity, tooled to a concave finishDepending on the manufacturer, sealant priming may be requiredPull and adhesion testing of the sealant will be required before installationCut out and re-caulk all expansion jointsRemove existing sealantClean and prep both edgesSolvent wipeInstall backing to the proper depthApply silicone sealant with no less than 100% elasticity, tooled to a concave finish Depending on the manufacturer, sealant priming may be requiredPull and adhesion testing of the sealant will be required prior to installationCaulk the building perimeter to the sidewalkRemove existing sealantMechanically remove the existing urethane sealantClean and prep both edgesSolvent wipeInstall backing to the proper depthApply, tooled to a concave finishPull and adhesion testing of the sealant will be required prior to installationCaulk around all the man doorsPaint exposed steel with DTMCaulk around all penetrationsReplace bricks as identified in the pre-bidTooth out the existing damaged brick, and install a new one to match the existingSeal MasonrySeal with Chemstop by EuclidSealer should be applied from the lower level up once you have a 3” rundown, you can proceed toseal vertically for proper application (Do not start from top and work down, this will incur streaking)DeliveryAll major work and mobilization are to be complete before August 18th, 2025Heritage Elementary School Specs and Scope:Bio clean Brick and LimestoneBio Clean all masonry with Enviro Klean by Prosoco and hot water, approximately 180 degrees at no more than 400 p.s.i.Tuckpoint 5% of BrickGrind with a dustless vacuum per OSHA GuidelinesGrind min. 1⁄2” in depth or to sound mortarLightly rinse ground mortar joints to remove any contaminants or loose materialInstall Type “N” mortar.Tooling, texture, and color to match existingMortar to set no less than seven (7) days prior to washing with detergents to expose sand Cut out and recaulk window perimetersRemove existing sealant from window perimetersClean and prep both edgesSolvent wipeInstall backing to the proper depthApply silicone sealant with no less than 100% elasticity, tooled to a concave finishDepending on the manufacturer, sealant priming may be requiredPull and adhesion testing of the sealant will be required before installationCut out and re-caulk all expansion jointsRemove existing sealantClean and prep both edgesSolvent wipeInstall backing to the proper depthApply silicone sealant with no less than 100% elasticity, tooled to a concave finish Depending on the manufacturer, sealant priming may be requiredPull and adhesion testing of the sealant will be required prior to installationCaulk the building perimeter to the sidewalkRemove existing sealantMechanically remove the existing urethane sealantClean and prep both edgesSolvent wipeInstall backing to the proper depthApply, tooled to a concave finishPull and adhesion testing of the sealant will be required prior to installation