Orange County NC Website
Browse       Search
DocuSign Envelope ID: B94F2D40-3B3C-47A7-86C2-6F1 B4F92C62C <br /> SECTION 04 01 20-MASONRY RESTORATION <br /> SECTION 04 01 20 - MASONRY RESTORATION <br /> PART 1 -GENERAL <br /> 1.1 SUMMARY <br /> A. Work included in this section: <br /> 1. Removal and replacement of CMU block. <br /> 2. Selective tuckpointing of deteriorated, cracked and open masonry joints. <br /> 3. Routing of cracks in CMU block and sealing. <br /> 4. Cleaning existing CMU masonry surfaces. <br /> 5. Painting metal louvers. <br /> 6. Painting CMU block colored bands. <br /> 7. Application of water repellant to all CMU surfaces. <br /> 8. Application of preformed silicone seal at sheet metal coping cover joints. <br /> 1.2 REFERENCES <br /> A. Refer to the following references for specification compliance. <br /> 1. American Society for Testing and Materials-ASTM. <br /> 2. International Masonry Institute (IMI). <br /> 3. Brick Industry Association (BIA). <br /> 1.3 RELATED DOCUMENTS <br /> A. Drawings and general provisions of Contract, including General and Supplementary General Conditions and Division <br /> 1 Specifications Sections, apply to this Section. <br /> 1. Division 1, Section "Summary of Work". <br /> 2. Division 1, Section "Allowances". <br /> 3. Division 1, Section "Unit Prices". <br /> 4. Division 4, Section "Preparation for Masonry Restoration". <br /> 5. Division 7, Section "Water Repellants". <br /> 6. Division 7, Section "Elastomeric Joint Sealants". <br /> 1.4 SUBMITTALS <br /> A. Submittal requirements as indicated in Section 01 33 00. <br /> 1.5 DELIVERY, STORAGE AND HANDLING <br /> A. Deliver materials,except aggregate,in original unopened containers displaying product name,type,grade and mixing <br /> instructions. <br /> 1.6 JOB CONDITIONS <br /> A. Environmental requirements: <br /> 1. Perform no tuckpointing and lay no masonry when temperature of surrounding air has dropped below 45 degrees <br /> F., unless it is rising; and at no time when it has dropped below 40 degrees F. Maintain air temperature above <br /> 40 degrees F. on both sides of masonry for at least 72 hours after tuckpointing and laying. <br /> 2. Perform no cast-in-place concrete forming when temperature of surrounding air has dropped below 45 degrees <br /> F., unless it is rising; and at no time when it has dropped below 40 degrees F. Maintain air temperature above <br /> 40 degrees F. on both sides of masonry for at least 72 hours after concrete forming. <br /> B. Protection of work: <br /> 1. During restoration, keep walls dry by covering at end of each day or shutdown period with a waterproof <br /> membrane or until installed work has set up. <br /> 2. Remove misplaced mortar or grout immediately. <br /> 3. Protect face materials against staining. <br /> 4. Protect sills, ledges, concrete pavement, sidewalks, piping, landscaping and offsets from mortar or grout <br /> droppings during construction. <br /> 1.7 Quality assurance <br /> A. Manufacturer's Qualifications: Not less than five(5)years'experience in the actual production of specified products. <br /> ©BOOMERANG DESIGN 0401 20-1 510 Meadowlands Drive,Hillsborough,NC <br /> BD#1835 ORANGE COUNTY, NC 12/07/2018 <br />