1 Exam Prep The NRCA Waterproofing Manual 2005 Tabs and Highlights

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1 1 Exam Prep The NRCA Waterproofing Manual 2005 Tabs and s These 1 Exam Prep Tabs are based on the National Roofing Contractors Association (NRCA) manual listed below: Waterproofing Manual Each 1 Exam Prep tabs sheet has five rows of tabs. Start with the first tab at the first row at the top of the page; proceed down that row placing the tabs at the locations listed below. Place each tab in your book setting it down one notch until you get to the last tab. Then start with the highlights. Special Note to our Students: If you are a 1 Exam Prep student, here is how to really get the most from the 1 Exam Prep Tabs. Follow the above instructions, but before placing the tab, find the tab's topic in the outline of your appropriate module. Now locate and highlight several items listed in the outline just before the topic, and just after. See how the topic fits in the outline and how it relates as a concept to the broader concept spelled out in the outline. If you take a few minutes to do this, when you take the test, key words in the test questions will remind you of where the information is in the manual! 1 Exam Prep Tab Page # Table of Contents 5 General Project 9 Considerations Waterproofing & 27 Damp-proofing Guidelines Bitumen 43 EPDM 44 PVC 45 Elastomeric 45 Crystalline 47 Waterstops 50 Dampproofing 51 List of Details 63 Glossary 119 This concludes the tabs for this book. Please continue with the highlights on the following page. 1 Exam Prep NRCA Waterproofing Manual

2 Pre-Bid Conference. "For waterproofing projects where drawings and specifications have been prepared and two or more waterproofing contractors are asked to submit sealed bids to perform specified work, NRCA recommends a pre-bid conference be conducted. A pre-bid conference can serve the following purposes: (7 bullets)." Pre-job Conference. "Once a project has been awarded, NRCA recommends a pre-job conference be held for waterproofing projects. This conference should be attended by the owner, architect/engineer or designer, general contractor, site contractor, waterproofing contractor, consultant, inspector or quality assurance supervisor, wall/slab/deck contractor, mechanical contractor and any others whose work may interface with or affect the waterproofing project." Temporary Waterproofing System. "If a temporary waterproofing system is to be employed, NRCA recommends the specifications clearly state a temporary waterproofing system will be required, the type and specification of temporary waterproofing system to be used, and whether the temporary waterproofing is to remain in place as part of the permanent waterproofing assembly." Precipitation. "Waterproofing materials should not be installed if water, frost, snow or ice is present on an area under construction." Slope and Drainage. "NRCA recommends all horizontal waterproofing systems over habitable spaces be designed and built to provide positive drainage." "For horizontal waterproofing systems over habitable spaces, a designer should specify a minimum 1/8:12 (0.6-degree) slope or greater and should make provisions in the design for complete positive drainage." Expansion Joints and Control Joints. "Expansion joints and control joints are used to minimize the effects of stresses and movements of a building's components and prevent these stresses from splitting, buckling/ridging or damaging a waterproofing system." Membrane Base Flashings. "NRCA recommends the height of a base flashing be a minimum of 4 inches 9100 mm) above the surface of the topping material." Quality Assurance and Water Tests. "A water test is conducted in one of two ways. (2 bullets.)" Introduction. "The NRCA Waterproofing Manual defines waterproofing and dampproofing as follows: (2 bullets)." "Waterproofing systems can be divided into two primary categories: positive side and negative side, which are defined as follows (2 bullets)." Waterproofing. "Waterproofing is defined as the treatment of a surface or structure to prevent the passage of water under hydrostatic pressure. Water exerts a pressure of 62.4 pounds per square foot per foot (1,000 kg per square meter per meter) of depth because water weights 62.4 pounds per cubic foot (Ib/ft 3 ) (1,000 kg per square meter per meter)." Drainage. "A drainage system is a system of perimeter and/or underslab drains used to relieve the hydrostatic pressure in the earth surrounding a below-grade structure." Geocomposites (Drainage mat). "Hydrostatic pressure can be relieved from perimeter walls below grade by using a coarse aggregate backfill or a prefabricated drainage product known as a "geocomposite." 1 Exam Prep NRCA Waterproofing Manual

3 "Deck drains that have the ability to receive water at the top surface of the overburden (e.g., concrete slab, pavers) and at the membrane level are called bi-level drains or multi-level drains. NRCA recommends the use of bi-level drains where drainage occurs at two levels." Walls Below Grade/Vertical Surfaces. -NRCA recommends building foundation walls below grade surrounding habitable spaces receive some form or waterproofing and drainage treatment." "Waterproofing can be applied to either the positive (exterior) or negative (interior) side of below-grade cast-in-place concrete foundation walls." Suggested List of Waterproofing Materials. Note and highlight each of the suggested waterproofing materials Asphalt Built-up Membrane. "Asphalt built-up waterproofing membranes are composed of alternating layers of asphalt reinforcing ply sheets. The most common type of reinforcing ply sheet is an asphalt-impregnated glass fiber matt. The number of plies of membrane depends on the hydrostatic pressure head that needs to be resisted. The relationship between hydrostatic pressure and the minimum number of plies recommended is as follows:..." (Note and highlight the Hydrostatic Pressure Head, Feet of Water for Asphalt chart.) Coal-tar Built-up Membrane. "Coal-tar built-up waterproofing membranes are composed of alternating layers of coal tar and reinforcing ply sheets. The number of plies of membrane depends on the hydrostatic pressure head that needs to be resisted. The relationship between hydrostatic pressure and the minimum number of plies recommended is as follows:..." (Note and highlight the Hydrostatic Pressure Head, Feet of Water for Coal-tar.) APP and SBS Polymer-modified Bitumen Sheet Membrane. "APP and SBS polymer-modified bitumen sheet membrane waterproofing components should conform to the following recognized standards:... (Note and highlight the ASTM standards chart.) Self-adhering Polymer-modified Bitumen Sheet Membrane. "There are no ASTM material standards currently for self-adhering polymer-modified bitumen waterproofing membranes." Butyl Rubber Membrane. "Butyl rubber waterproofing membranes consist of factory-fabricated sheets or reinforced butyl rubber." "Butyl rubber waterproofing membranes should generally not be installed when substrate surface temperatures are below 40 F (4 C)." Note and highlight the small recognized standard chart EPDM Membrane. "EPDM waterproofing membranes consist of factory fabricated sheets of ethylene propylene diene monomer." "Vulcanized-rubber (EPDM) sheet material should conform to the following recognized standard:... (Note and highlight the ASTM standards chart.) Installation. "Install the wearing surface or backfill within 24 hours to 72 hours after completion of the waterproofing system. " Polyvinyl Chloride (PVC) Membrane. "There are currently no ASTM material standards for PVC sheet waterproofing membranes." 1 Exam Prep NRCA Waterproofing Manual

4 Installation. "Install the wearing surface or backfill within 24 hours to 72 hours after completion of the waterproofing system." One- and Two-component Fluid-applied Elastomeric Membrane. "Fluidapplied elastomeric waterproofing membranes consist of high solids content polyurethane elastomers in liquid form. Some products are made solely of polyurethane, and others are modified with coal tar or asphalt." "Fluid-applied elastomeric waterproofing membranes should conform to the following recognized standards:..." (Note and highlight the ASTM standards chart.) Bentonite Waterproofing. "Bentonite waterproofing is only used for below grade applications." "Bentonite requires a solid, void-free surface and confinement with 85 percent modified Proctor density compacted backfill, concrete or shotcrete." "There are currently no ASTM material standards for Bentonite waterproofing." Installation. "Bentonite waterproofing systems cannot be water tested." Crystalline Waterproofing. "Crystalline waterproofing is typically a negative (interior) side waterproofing system. It typically is not used as a primary waterproofing system but can be under certain job conditions. It can be sued as a secondary waterproofing system. In addition, crystalline waterproofing is typically appropriate as a maintenance effort to control leakage." "Crystalline waterproofing should generally not be installed when substrate surface temperatures are below 40 F (4 C)." "There are currently no ASTM material standards for crystalline waterproofing." Installation. "Negative (interior) side waterproofing systems are generally not suitable for water testing." Installation. "Negative (interior) side waterproofing systems are generally not suitable for water testing." Elastomeric Traffic Coating. "Elastomeric traffic coatings are applied in multiple coats. In most instances, a primer is required. The base coat, or primary waterproofing coat, is typically a one- or twopart, self-leveling elastomeric product." Elastomeric Vehicular Traffic Coatings. "Elastomeric traffic coatings should conform to the following recognized standard:..." (Note and highlight the ASTM standards chart.) Waterstops. "Waterstops are devices installed at the intersection of cold joints in concrete walls and slabs. walls and footings or at vertical joints in concrete work." "The designer should indicate the location of the waterstops within the cold joint and the party who is responsible for installation of waterstops. Placement is critical - waterstops should not be placed too closely to the edge of concrete walls." Crystalline Waterproofing Repairs. "Crystalline waterproofing is appropriate for rehabilitation of existing structures." Polyurethane Chemical Grout Injection. "Polyurethane chemical grout injection employs specialized equipment and materials required to seal leaking cracks and voids in concrete structures with a flexible material capable of accommodating some additional movement." 1 Exam Prep NRCA Waterproofing Manual

5 2.8.3 Acrylamide Gel Chemical Grout Injection. "... the acrylamide grout gel is designed to create a dense, water-impermeable mass in the earth opposite a leaking crack or void." Design Guidelines and Performance Requirements for Dampproofing of Below-grade Walls. "Dampproofing is defined as the treatment of a surface to resist the passage of moisture in the absence of hydrostatic pressure." "Dampproofing methods should not be used for horizontal slabs on grade or foundation walls when these structures will be subject to hydrostatic pressure." Solvent-based Dampproofing Mastics. "Solvent-based dampproofing mastic is used to reduce water or moisture infiltration on foundation walls below grade where no hydrostatic pressure exists or on the interior side of masonry walls above grade." Bituminous-emulsion Dampproofing. "Bituminous-emulsion dampproofing materials are used to reduce water or moisture infiltration on foundation walls below grade where drainage systems have been employed and on the interior side or masonry walls above grade." 127 Hypalon TM: "a registered trademark of E.I. du Pont de Nemours & Co.. for "chlorosulfonated polyethylene" (CSPE). (See Chlorosulfonated polyethylene.)" 1 Exam Prep NRCA Waterproofing Manual