Sources A recent survey of leaking basements showed water comes from a variety of sources, but walls are the usual culprit: Occurrence of moisture
|
|
- Marylou Allison
- 8 years ago
- Views:
Transcription
1 NEGATIVE SIDE WATERPROOFING»»»»»»»»»»»»»» NEGATIVE SIDE WATERPROOFING NEGATIVE SIDE WATERPROOFING NEGATIVE SIDE WATERPROOFING It s Possible to Waterproof Leaking Basements From the Inside By Basil Mewes and Dieter Köster Water and moisture considerably reduce the value of a basement as living space or storage area. When moisture enters a basement, the conditions for the formation of mold become favorable. And once mold has formed, it continually produces spores and releases them into the surrounding air, allowing them to spread through the rest of the building, which not only causes a musty smell but also reduces the living quality and even cause health disorders. The cause of water or moisture in basements is usually ground water or ground moisture which penetrates into the basement through the floor slab or the basement walls. Such defects are frequently encountered in older buildings, but new buildings can also be affected. Construction is usually carried out during the dry summer months, so designers, owners and craftsmen sometimes neglect the seasonal changes which will expose a basement to water in the fall and winter. As a result the waterproofing of new structures is often neglected and does not provide permanent protection. Sources A recent survey of leaking basements showed water comes from a variety of sources, but walls are the usual culprit: Occurrence of moisture Only on walls: 82.8 % Only on the fl oor: 4.1 % On walls and fl oor: 13.1 % Moisture penetration on walls (Multiple entries were permitted) Larger areas: 58 % Around penetrations (pipes, cables,doors): 35 % Cracks: 28 % At the horizontal barrier: 27 % At the wall / fl oor junction: 22 % Other (partially multiple sources): 11 % Moisture penetration on fl oors (Multiple entries were permitted) Cracks: 55 % Larger areas: 46 % Other (partially multiple sources): 6 % This survey examined mostly basements built of masonry. Leaking basements which were built with concrete walls tend to show less moisture penetration in large areas but more water-bearing cracks. Repair Options In order to restore the integrity of exterior basement waterproofing, the obvious approach is to excavate the ground in the area where the leakage is located and to repair the waterproofing layer. So called positiveside waterproofing is an effective and proven solution. In some cases, however, it s not possible to take this approach due to inaccessibility to the leaking area, for example because garages, driveways, property lines or roads abut directly with the leaking wall. Leaking floors are almost always inaccessible form the exterior. This leaves the application of a waterproofing on the inside of the basement as the only possibility. This is termed negative-side waterproofing. The construction chemicals industry has developed products and methods which have made waterproofing basements from the inside possible. These products and methods are easy to apply and their effect permanent. Additionally, the costs of waterproofing a leaking basement from the inside are usually much lower than the costs of waterproofing that building from the outside. The excavation of the ground on the outside of a building is a 14 WATERPROOF!
2 major cost factor which is not necessary when waterproofing from the inside. Developers of negative-side waterproofing materials have to take into consideration that water frequently penetrates into the basement through the walls with high pressure, that the water usually carries diluted salts which can harm the building substrate, that the waterproofing needs to become permanently attached to the wall substrate, and that substrates are often not rigid but that motion can occur in cracks and joints. General Work Steps The work steps when waterproofing basements from the inside are usually the following: 1. Substrate Prepped: Loose particles and adhesion-inhibiting substances must be removed in order to provide a substrate which the waterproofing materials can bond to. 2. Active Leaks Stopped: Th e surface must be free of flowing water so that a waterproofing material which is applied will not be washed off before it can set sufficiently. Plugging the active leaks is usually not sufficient as a stand-alone repair, since over time the pressurized water may find other pathways through the wall or floor. Plug mortars and very fast setting specialized systems are suited to this task. Cracks in cast-in-place concrete walls are sealed via injection with a suitable polyurethane injection resin. Low-pressure epoxy is frequently injected after the water is stopped, in order to add structural strength. 3. Floor/Wall Joint Strengthened: Fillets are installed at the wall/floor junction in order to reduce tensions on the waterproofing layer caused by slight movements of wall and floor against each other. Repair mortars, often expanding and/or fiber reinforced, are a good choice. 4. Waterproofing Applied: A variety of materials can be used, but the product selected has to be able to resist the water penetrating through the substrate under pressure. Therefore, only special waterproofing slurries are suited to this task. 5. Protection Course Installed: The waterproofing layer is protected against mechanical damage and against the formation of condensate on its surface. Restoration plasters are ideal for this purpose. These steps are discussed in greater detail below. Leaks Stopped Flowing water on the surface of the substrate is a problem for any waterproofing material with a relatively long set time, because fresh material can be diluted or even washed off the surface by flowing water. The standard method is to inject a polyurethane foam first to stop any flowing water and then, in a necessary second step, to inject an elastic solid body resin. In negative-side applications, it is not sufficient just to inject a rigid foam! Cracks can move and leak again after a certain time. Reinjection is essential for durability. Boreholes are drilled into the crack from alternating sides in a 45 angle towards the crack center. Since the course of the crack below the surface is not known, this procedure ensures that at least every second borehole transects the crack. The polyurethane resin is injected into the boreholes with a high pressure injection pump via special valves, so-called injection ports, which are installed in the boreholes. Polyurethane injection materials are the best choice for sealing cracks because they stay permanently elastic and bond well to concrete or brick. It is also important to know whether the crack is dry or wet because some injection materials need water to react whereas others do not react if water or moisture is present. Köster s KD 2 Blitz, can stop flowing water within seconds. The powder is just pushed firmly against the active leakage. Within seconds, the wall is permanently sealed. Fillets The wall/floor junction is one of the most leak-prone areas of basements. It is the focal point of stress caused by movement and settlement. Even a very slight shift can cause a rigid connection to crack. For example, seasonal temperature variations can cause significant movement. Similarly, when the top of a foundation protrudes out of the ground, the protruding part is directly exposed to the outside air temperature while the foundation or floor slab is situated much deeper below grade and is surrounded Winter
3 Photo courtesy Aquafi n. Fillets, also called coves, reduce stress at the wall/floor junction by spreading the pressure over a larger area. by a stable temperature throughout the year. The floor slab will expand or shrink much less due to seasonal changes than the walls. Any waterproofing layer that is applied to this junction would have to withstand tremendous stresses. Concave fillets installed in the wall/floor junction can relieve this problem. These fillets won t eliminate all movement between the wall against the floor, but the stresses are spread over the area of the rounded out fillet, instead of being focused on the point of that 90 angle. Fillets are easy to install. The contractor mixes a high quality repair mortar, and places the fresh mortar on the inside corner of the joint. The fillet is rounded out using a trowel or even a piece of pipe. The leg length of a mortar fillet should be about 1.5 to 2.5 inches. Negative-Side Waterproofing Once the interior surface of the wall is dry, clean and stable, and fillets have been installed, the waterproof coating can be applied. For successful negative-side waterproofing, the product should have the following properties: The waterproofing product should be mineral-based, just like the brick or concrete substrate. It has to become one with the substrate. The waterproofing product ideally penetrates a little into the substrate. That way it cannot be pushed off by water pressure. The material has to be open to vapor diffusion so that water vapor can penetrate the cured coating. The material should be free of chlorides so that it does not harm the steel reinforcement. The product should resist any highwater pressure coming from the positive side. The product should be easy to apply. The sidebar at right lists several products marketed for negative-side waterproofing applications. Wall Finishes Waterproofing membranes should always be protected from mechanical damage. Because negative-side applications are on the interior of the wall, they cannot be left exposed. Similarly, basements condensation can become a problem. A proper protection layer can solve both problems. For instance, Koster makes a line of restoration plasters that provide a highly porous, breathable layer on the wall which also has a high mechanical resistance. They absorb water in vapor form so that the walls can breathe and help provide a comfortable and healthy room climate. Most systems use a primer to ensure good adhesion to the substrate. Köster s primer is applied over the waterproofing as well to inhibit the movement of salts. Conclusion For new construction and most remedial waterproofing work, experts agree that the most effective waterproofing installation is on the positive (exterior) side of the structure. However, negative-side applications do have their place. They re effective as an emergency solution. Chris Strogilis, a Macon-based waterproofer, says he s encountered countless occasions when the negative waterproofing emerges as the only option. John D Annunzio, president of Paragon Consultants, summarizes, The primary advantage of negative side waterproofing is that the area is fully accessible after installation. Any further defects or required touchups can be repaired with no surface removal or intrusion to the substrate. This method also eliminates the need for sub-slabs and wall pointing for foundation waterproofing, which are required on positive side systems. [However,] the installation of any system on the negative side is exposed to the added risk of having the waterproofing pushed off or delaminated from the substrate by moisture that infiltrates the concrete in a liquid or vapor form. Waterproofing applied to the negative side of the structure also provides a passage for any ground containments or chemicals to enter into the substrate and deteriorate the concrete and corrode steel reinforcements. By carefully considering all of the factors involved and choosing appropriate products, negative-side waterproofing can be an effective solution to an otherwise difficult project. Dieter Köster is managing director of Köster Bauchemie AG, a worldwide leader in waterproofing solutions. U.S. offices are headquartered in Virginia Beach, Va. For more information, visit com or call WATERPROOF!
4 Products for Negative-Side Waterproofing In a few cases, the most cost-effective waterproofing method involves coating the interior side of the wall. Called negative-side waterproofing, this technique involves applying product to the dry or inside face of the surface. Negative side waterproofing prevents water from entering occupied space, but it does not prevent water from entering the substrate. Therefore, if the wall will be subject to freeze/thaw cycles or if the surrounding soil contains corrosive materials, negative side waterproofing is not a permanent option. Hydrostatic pressure is a major concern, as hydrostatic pressure will tend to push negative side products away from the substrate. Surface preparation is absolutely essential to ensure that the waterproofing layer adheres firmly to the substrate. While a variety of products are marketed for negative side applications, some of the most effective are the cementitious coatings made by a handful of manufacturers. Izonil makes a unique waterproofing plaster composed of Portland cement, sand, fibers and proprietary additives. It is completely waterproof when dry, yet remains permeable to air and water vapor. The fine grade plaster can be used as an undercoat, or applied by skilled applicators, as a final finish coat. It was recognized as a most innovative product at the 2009 World of Concrete tradeshow, and has been used on jobs ranging from presidential palaces to cellars and sump pits, successfully restoring areas thought to be beyond repair. Köster makes an entire line-up of products for negativeside applications, including KD 2 Blitz, a highly reactive powder that can stop flowing water within seconds. Without mixing beforehand, the powder is just pushed firmly against the active leakage and reacts immediately to stop the flowing water. For cracks, their KB-Pur 2-in-1 fills cracks with either foam or an elastic, solid-body resin depending on the presence of water. Köster s repair mortar can fix voids and honeycombing in the substrate, and is also used to form floor/ wall fillets. For the actual waterproofing layer, they market Köster NB 1, a waterproofing slurry with crystallizing and capillary sealing agents. It provides excellent pressure and abrasion resistance as well as excellent resistance to a wide range of chemicals. The material is applied using a brush to work it firmly into the substrate. The aim is that the waterproofing material crystallizes in the pores and subsequently becomes one with the substrate. A primer, Köster Polysil TG 500, is used to solidify the substrate and to inhibit the movement of salts. The company also makes restoration plasters intended as a final coat. Xypex uses crystalline technology to seal walls and floors from the inside. Although it s applied as a coating, Xypex does not rely on surface bonding to achieve waterproofing. Instead, the reactive chemicals in the Xypex coating migrate through the capillary tracts within the concrete to become an integral part of the concrete mass and seal it against moisture. It can withstand enormous hydrostatic pressure even when applied to the negative side of the wall. Aquafin also makes a variety of products suitable for negative side applications, depending on the type and condition of the substrate. Their Aquafin-1K is the most straight-forward. It s a single-component just-add-water powder that can be brushed, troweled, or sprayed onto the wall. It works well on stable brick, stone and masonry surfaces, and can be painted or over-coated without problems. Aquafin-IC is a crystalline slurry coat that, like Xypex, only works on cast concrete surfaces. It reacts with moisture and free lime inside the wall to create crystals which grow into the concrete. While it can withstand enormous hystrostatic pressure, it cannot be painted or overcoated without special treatment. Mortar-LN is a waterproof lining and parging mortar. When built up to 1/4 it is completely waterproof, and is a great solution for old stone or rubble walls. It allows the applicator to patch mortar joints and apply waterproofing at the same time. Winter
5 Custom fit solutions to meet Your building envelope needs 8PLAZA DECK RESTORATION 8GREENROOF SYSTEMS 8CONCRETE JOINT WATERSTOPS 8UNDERSLAB WATERPROOFING 8PRECAST CONCRETE STRUCTURES 8TUNNEL WATERPROOFING 8BLINDSIDE WATERPROOFING 8ROOFING UNDERLAYMENTS 8SPLIT-SLAB DECKS 8SHOTCRETE FOUNDATION WALLS All backed by the industry leading Hydroshield tm Quality Assurance program Forbs Avenue Hoffman Estates, IL
NEGATIVE SIDE WATERPROOFING SYSTEMS FOR MASONRY AND CONCRETE
NEGATIVE SIDE WATERPROOFING SYSTEMS FOR MASONRY AND CONCRETE What is negative side waterproofing? A typical case of negative side waterproofing is when water comes through the walls of a basement and the
More informationorizontal BarrierS PATENTED SYSTEM
orizontal BarrierS Against rising damp IN MASONRY PATENTED SYSTEM Why is rising damp a concern for building owners? Rising damp is among the most frequently encountered causes of damage to masonry walls.
More informationThe AQUAFIN Approach to Concrete Repair
Concrete Repair Building Product Systems Waterproofing & Concrete Restoration Decorative Coatings Moisture Vapor Remediation & Flooring Injection Grouting The AQUAFIN Approach to Concrete Repair www.aquafin.net
More informationWATERPROOFING OF WET ROOMS
WATERPROOFING OF WET ROOMS Waterproofing under tiles For longterm enjoyment of a wetroom area a complete and resistant waterproofing system is an important precondition. Most tiles are by themselves waterproof
More informationProduct Systems AQUAFIN-IC CEMENTITIOUS CRYSTALLINE PENETRATING WATERPROOFING. Waterproofing Specification
AQUAFIN-IC CEMENTITIOUS CRYSTALLINE PENETRATING WATERPROOFING Typical s Table of Contents: No. 4 5 6 7 8 9 0 External waterproofing of below ground concrete wall & slab Internal waterproofing of foundation
More informationWaterproofing construction Joints
WaterproofingSystems Waterproofing construction Joints Area waterproofing Backing rod KÖSTER Joint Sealant FS-H KÖSTER FS Primer Contents Basics Connective, loadable and resilient: Joints in building construction
More informationHIGH PERFORMANCE PRE-APPLIED SYSTEM FOR BLIND SIDE & BELOW GRADE WATERPROOFING APPLICATIONS
BSW HIGH PERFORMANCE PRE-APPLIED SYSTEM FOR BLIND SIDE & BELOW GRADE WATERPROOFING APPLICATIONS BSW is a fully reinforced Pre-Applied system membrane designed for horizontal and vertical external blind-side
More informationWaterproofing System for Wastewater Tanks in Petrochemical Industries and Refineries
Waterproofing System for Wastewater Tanks in Petrochemical Industries and Refineries Introduction Wastewater of petrochemical industries and refineries contains high amounts of emulsified aliphatic or
More informationExTERNAL BASEMENT WATERPROOFING
ExTERNAL BASEMENT WATERPROOFING Contents Contents 2 Introduction External basement waterproofing 3 What is positive side waterproofing? 3 Waterproofing Solutions The KOSTER solutions for positive side
More informationMold Preventing I nterior System
interior insulation and renovation boards A system of components that have been designed to work perfectly together to repair damage caused by mold. The system consists of boards, insulation wedges, reveal
More informationBasement Moisture Problems
Foundations Foundation Purpose The purpose of a foundation is to distribute the weight of a structure securely into the ground. Engineering data regarding soil, rock and water conditions are used to design
More informationexternal Basement waterproofing
external Basement waterproofing Content Content 2 External Basement Waterproofing 3 What is positive side waterproofing? 3 KÖSTER Waterproofing Solutions The KÖSTER solutions for positive side waterproofing
More informationBasements are Changing. Basements Part of the Enclosure. Basements. Energy Efficient, Durable, Healthy. Below grade enclosure
Basements are Changing John Straube, Ph.D., P.Eng Basements: New & Retrofit Energy Efficient, Durable, Healthy Increasingly used as living space Not a root /coal cellar anymore! High quality space expected
More informationWater Damage & Repair
Water Damage & Repair Chinatown Preservation Talks 2015 James Engler, P.A Glenn Mason, AIA Mason Architects Program Outline Terminology & Waterproofing Basics Discussion of why this is important Below
More informationMAPEI s Resfoam polyurethane products
MAPEI s Resfoam polyurethane products Manhole Rehabilitation System Water treatment facilities across the nation are squandering energy and capacity due to the unnecessary treatment of millions of gallons
More informationexternal Basement waterproofing
external Basement waterproofing Content External basement waterproofing Content 2 External Basement Waterproofing 3 What is positive side waterproofing? 3 KÖSTER Waterproofing Solutions The KÖSTER solutions
More informationSafeguard Waterproofing Systems. Creating useable. living space. by making basements dry
Safeguard Waterproofing Systems living space Creating useable by making basements dry The SWS waterproof cement system The Safeguard SWS Structural Waterproofing System is designed to be both highly effective
More informationBELOW GROUND TANKING
BELOW GROUND TANKING Basement & Foundation Waterproofing Systems - What, Why & How By Paul Evans MBAV Specialist Contractor, Registered Building Practitioner Vice President Australian Institute of Waterproofing
More informationFoundation. Foundation
Moisture Aside from structural concerns, the most important consideration for foundation design is moisture. No client wants a wet basement. No client wants a damp basement. No client wants mold in their
More informationRemedial Waterproofing of Basement
Remedial Waterproofing of Basement [Source:http://www.property-care.org/files/cop_structural_ waterproofing.pdf and http://www.foundation-repair-guide.com] 1.0 Introduction Remedial waterproofing of basement
More informationConcrete Waterproofing Systems. Integral Protection. www.tritonsystems.co.uk
Concrete Waterproofing Systems Integral Protection n Type B Integral Protection in accordance with BS 8102 (2009) n Unique chemical admix for waterproofing and protection of concrete n A complete and permanent
More informationConcrete Repair. Applications and Procedures
Concrete Repair Applications and Procedures Objectives Identify what surface preparation is needed Identify typical modes of failure and testing methods How to choose the correct material for the repair
More informationT R A N S F E R A B L E F U L LY
HSTOPS A WALL OF WATER 22 FT. HIG! F U L LY T R A N S F E R A B L E RESISTS10 PSI ! 1 F U L LY T R A N S F E R A B L E HSTOPS A WALL OF WATER 22 FT. HIG RESISTS10 PSI Guaranteed To Stop Water Even Under
More informationTHORO. Waterproofing Systems
THORO Waterproofing Systems Contents Welcome to the world of Thoro 3 Waterproofing 4 Thoroseal 5 Thoroseal FC 6 Thoro Acryl 60 6 Thoroseal WR 7 Thoroseal FX100 8 Thoroseal FX110 9 Thoroseal FX 1K 10 Thoro
More informationGet The Picture. page 2. Congratulations on taking your first step toward becoming a basement waterproofing expert!
Thanks for downloading! Get The Picture Congratulations on taking your first step toward becoming a basement waterproofing expert! In this free helpful guide, you learn how to accurately: 1) diagnose your
More informationConcrete Waterproofing by Crystallization. General Construction Foundations
Concrete Waterproofing by Crystallization General Construction Foundations The Structures The Problems Xypex products play a key role in the waterproofing of concrete against water leakage, even against
More informationConcrete Waterproofing Systems
Concrete Waterproofing Systems Triton s concrete waterproofing systems are designed for the protection and waterproofing of new or existing concrete structures. The range includes integral waterproofing
More informationConstruction. Pre-Bagged Structural Waterproofing System. Product Description. Product Data. Tests. Form
Construction Product Data Sheet Edition 15/07/2013 Identification no: 01 07 05 04 001 0 000001 Sika 1 Pre-Bagged Structural Waterproofing System Product Description Pre-Bagged Structural Waterproofing
More informationSchool Construction Authority Architecture & Engineering
SCOPING GUIDELINES 1.0 GENERAL GUIDELINES 2.0 BUILDING ENVELOPE SCOPING GUIDELINES 3.0 CATEGORIES AND COMPONENTS: The Flood Elimination/Below Grade Capital Category may include some or all of the following
More informationFoundation Water Problems. An Overview and Discussion of some Causes and Cures for Water Infiltration into Basements and Foundation Structures
Foundation Water Problems An Overview and Discussion of some Causes and Cures for Water Infiltration into Basements and Foundation Structures This presentation was prepared and presented by Dwight Walker
More informationSTAYFLEX CORROSION CONTROL AND THERMAL INSULATION SYSTEM
STAYFLEX CORROSION CONTROL AND THERMAL INSULATION SYSTEM Installed in Pre-engineered Steel Buildings Provides Lowest Cost Construction Method for CORROSIVE AND WET Environments PREFERRED SOLUTIONS, INC.
More informationR E S I D E N T I A L H O U S I N G
HL 252 Rev. April 1997 R E S I D E N T I A L H O U S I N G CONTROLLING EXTERNALWATER PROBLEMS FOR RESIDENCES I II III IV V Lot Drainage Gutter Water Management Foundation Waterproofing Floor Slab Waterproofing
More informationWecryl Waterproofing System under surfacing supplied by others
Brief description The Wecryl waterproofing system allows a high-quality, seamless and crack-bridging waterproofing layer to be installed under loose-laid or bonded surfacing supplied by others (stone slabs,
More informationTechnical Data Sheet Art. No. 1810. Kiesol. applications. Shelf-life. rate depending on application. Characteristic data of the product
Page 1 of 5 Technical Data Sheet Art. No. 1810 Kiesol Deep protection silicification for waterproofing and refurbishing old and new buildings in the Kiesol System according to WTA Code of Practice 4-4-04/D
More informationALKALI-RESISTANT WATERPROOFING AND DECOUPLING MEMBRANE UNDER CERAMIC TILES AND NATURAL STONE
Mapeguard WP System ALKALI-RESISTANT WATERPROOFING AND DECOUPLING MEMBRANE UNDER CERAMIC TILES AND NATURAL STONE Products used: Mapeguard WP 200, Mapeguard ST, Mapeguard IC, Mapeguard EC, Mapeguard WP
More informationMoisture Mitigation for Concrete Slabs
Moisture Mitigation for Concrete Slabs A brief description of alternative methods for dealing with slab moisture problems By Peter A. Craig M oisture-related problems with floor coverings and coatings
More informationBasement & Foundation Damage
Basement & Foundation Damage Please note-this presentation is only intended to be used as a basic educational tool and is by no means all encompassing. Each property should be treated on a case by case
More informationUSER GUIDE Easier, Safer, Betta! www.gripsetbetta.com WATERPROOFING
USER GUIDE Easier, Safer, Betta! www.gripsetbetta.com WATERPROOFING Welcome to Gripset Betta, Over the past 3 decades through the tireless commitment to improve and enhance the way buildings are waterproofed,
More informationComment Form on Proposed Gut Rehabilitation Alternatives
Comment Form on Gut Rehabilitation Alternatives Name: Organization: Email: Instructions Submission: Please submit this form to energystarhomes@energystar.gov by October 10 th, 2012 with the subject line
More informationRepair and Rehabilitation of Nehru Memorial College of K.V.G. Group of Institutions at Mangalore - A Case Study
Repair and Rehabilitation of Nehru Memorial College of K.V.G. Group of Institutions at Mangalore - A Case Study Surresh Chandra Pattanaik ab, E. Gopal Krishnan b and Mohan Kumar c a School of Civil Engineering,
More informationWhat Causes Foundation Leaking?
A home's foundation has the odds stacked against it from the day it's built. When a home is excavated to make room for the foundation walls, space is left between the outer edge of the foundation wall
More informationRehabilitation of an Aging Concrete Reservoir Adit Tower
Rehabilitation of an Aging Concrete Reservoir Adit Tower Raymond S. Tombaugh, Senior Coatings Consultant KTA-Tator, Inc. and Mongkol Mahavongtrakul, P.E. Corrosion Control Contract Manager San Francisco
More informationFoundation Experts, LLC Specializes in Foundation Repair and Waterproofing
1 Most basements show some signs of leaking and cracking. Through the years, problems with water, poor soils, grading, drainage and possible settling affect the integrity of a basement. Being able to recognize
More informationSika -1 Structural Waterproofing System
The accompanying sketches are indicative of various types of joints. JOINTS Detailing Sheet No 1 WALL AND FLOOR JOINTS The correct detailing of lap joints and floor/wall joints is essential for the performance
More informationINVESTIGATING AND REMEDIATING LEAKS IN BELOW GRADE STRUCTURES AND UNDER PLAZAS
INVESTIGATING AND REMEDIATING LEAKS IN BELOW GRADE STRUCTURES AND UNDER PLAZAS JUSTIN HENSHELL, FAIA, FASTM HENSHELL & BUCCELLATO, RED BANK, NJ B U I L D I N G E N V E L O P E T E C H N O L O G Y S Y M
More informationChapter. Restoration of Damaged Structures
5 Chapter Restoration of Damaged Structures Bringing back a damaged structure to its pre-earthquake state and original strength is called restoration. This is the first step of building rehabilitation.
More informationSTEPS TO CONSTRUCTING A MOISTURE-RESISTANT FOUNDATION SOURCES OF MOISTURE IN NEW CONSTRUCTION. Natural ground slope
FOUNDATIONS STEPS TO CONSTRUCTING A MOISTURE-RESISTANT FOUNDATION Build a Better Home Details are critical when constructing a sound building foundation that will withstand water and control dampness.
More informationExternal Wrapping of Steel Riser Pipe. Case Study HJ3 CS200902
External Wrapping of Steel Riser Pipe Case Study HJ3 CS200902 Introduction Refineries process a wide variety of petroleum products. As part of the process, they rely on cooling towers, which recycle water
More informationMetropolitan Builders Association Masonry & Concrete Standard
Metropolitan Builders Association Masonry & Concrete Standard Background Masonry and concrete work in residential construction often provides the base structure upon which the house is built or as a veneer.
More informationMinor Cracks in Horizontal Surfaces
Cracks, chips and broken or flaking areas in concrete are not only unsightly, they can lead to further deterioration of the surface. The result is a costly replacement project as opposed to a simple repair.
More informationUNIVERSITY OF CHICAGO ELEVATOR PIT LEAK REPAIR
ITEM: UNIVERSITY OF CHICAGO ELEVATOR PIT LEAK REPAIR DESCRIPTION: General Furnish all labor, equipment, and materials necessary and incidental thereto to perform all required operations to eliminate the
More informationInterior Walls below and above ground OLDROYD THE ULTIMATE WATERPROOF MEMBRANE SYSTEM
P r o d u c t a p p l i c a t i o n s a n d t e c h n i c a l i n f o r m a t i o n 2 below and above ground V OLDROYD THE ULTIMATE WATERPROOF MEMBRANE SYSTEM V The flexible, fast and cost-effective answer
More informationDELTA Premium Moisture Management Systems for Foundations.
DELTA protects property. Saves energy. Creates comfort. DELTA Premium Moisture Management Systems for Foundations. DELTA Premium Moisture Management Systems provide the best protection for foundations.
More informationAvoiding Air Barrier Pitfalls
Avoiding Air Barrier Pitfalls Design & Durability November 2013 Air barriers, when correctly installed, help buildings achieve high levels of energy efficiency by decreasing heat loss. For example, great
More informationFOUNDATION INSULATING SYSTEM, INCLUDING WATERPROOFING AND DAMP PROOFING
FOUNDATION INSULATING SYSTEM, INCLUDING WATERPROOFING AND DAMP PROOFING insulation installed on foundation walls must be separated from the building interior with a code approved thermal barrier. Foam
More informationConstruction. Sika -1 Waterproofing System. Waterproofing Above and Below Ground for both New and Refurbishment Works
NBS SPECIFICATION Solutions with Sika Systems Uniclass EPIC L6813 F83 Sika -1 Waterproofing System Waterproofing Above and Below Ground for both New and Refurbishment Works CI/SfB Y (L34) Construction
More information201 WATER STREET FORWARDERS MUSEUM AND VISITORS INFORMATION CENTRE
STRUCTURAL INSPECTION REPORT DRAFT 201 WATER STREET FORWARDERS MUSEUM AND VISITORS INFORMATION CENTRE TOWN OF PRESCOTT Date: November 2013 GENIVAR No.: 131-20617-00 2611 Queensview Drive, Suite 300, Ottawa,
More informationHomeowner s Guide Foundation Water PenetrationTips TIPS TO IDENTIFY WATER PENETRATION PROBLEMS / CRACKING BASEMENTS
Homeowner s Guide Foundation Water PenetrationTips TIPS TO IDENTIFY WATER PENETRATION PROBLEMS / CRACKING BASEMENTS MAINTAINING YOUR HOME BASEMENT FOUNDATION BY HOMEOWNER PREVENTATIVE MAINTENANCE LUX WATERPROOF
More informationINTERIOR WALLS AND BASEMENTS CHOOSING THE RIGHT MEMBRANE FOR INTERIOR WALLS. Multi-Layer Technology provides increased strength.
INTERIOR WALLS AND BASEMENTS CHOOSING THE RIGHT MEMBRANE FOR INTERIOR WALLS Multi-Layer Technology provides increased strength. Specifically designed for interior applications. Compatible with most internal
More informationNon Destructive Waterproofing Remedial Treatment
Non Destructive Waterproofing Remedial Treatment Jeffrey Toh T.A., Tan Shan Shan, Mathew Bey T.K. and Francis Chan W.C. Vision Building Forensics Pte Ltd 29, Jurong Port Road, Singapore 619102 Visionbf@starhub.net.sg
More informationPERFORMANCE GUIDELINES
1. Foundation/Basement 17 PERFORMANCE GUIDELINES 1. FOUNDATION/BASEMENT 1.1 Efflorescence on concrete or masonry surfaces Efflorescence is the formation of a white crystalline or powdery deposit on the
More informationbout your HOUSE before you start Repairing And Replacing Materials Exterior Walls
A bout your HOUSE before you start Repairing And Replacing Materials Exterior Walls CE 28 h Exterior finish materials are expected to protect the house from the elements while providing an attractive appearance.
More informationChapter 2 Basis of design and materials
Chapter 2 Basis of design and materials 2.1 Structural action It is necessary to start a design by deciding on the type and layout of structure to be used. Tentative sizes must be allocated to each structural
More informationCavity Drain R20 is manufactured from1.0mm thick black high density polyethylene with studs approximately 20mm high.
CI/SfB Tn6 L6813 September 2013 RIW CAVITY DRAIN R20 R20 is manufactured from1.0mm thick black high density polyethylene with studs approximately 20mm high. Other systems are available for specific uses,
More informationSikaProof A Technology
SikaProof A Technology The fully bonded waterproofing system Keep your basements durably and securely watertight What is SikaProof A? How does it work? Where can it be used? What are the advantages of
More informationconstructive solutions Fosroc total waterproofing protection of below-ground structures
constructive solutions Fosroc total waterproofing protection of below-ground structures Our profile Since the company s beginnings over 50 years ago, Fosroc has developed into an International leader in
More informationHow To Use A Hydraway System
hydraway Waterproofing System protect your greatest asset... your home The Hydraway 2000 System foundation wall concrete floor hydraway 300 Hydraway 2000 Removes up to 70% more water than conventional
More informationImproving the flood resistance of your home. Advice sheet 4: Flood-resilient walls.
Improving the flood resistance of your home Advice sheet 4: Flood-resilient walls. This sheet provides guidance on identifying different types of wall, and reducing the flow of floodwater through them
More informationIn accordance with the Department of Labor and Industry s statute 326.0981, Subd. 11,
In accordance with the Department of Labor and Industry s statute 326.0981, Subd. 11, This educational offering is recognized by the Minnesota Department of Labor and Industry as satisfying 1.5 hours of
More informationBLACK JACK ALL WEATHER ROOF COATING
PAGE: 1 of 6 PRINT DATE: 16/09/2004 BLACK JACK ALL WEATHER ROOF COATING DESCRIPTION BLACK JACK ALL WEATHER ROOF COATING is a solvent based, full bodied black brushable compound with added fibres for reinforcement.
More informationWinter 2011. Drainage Do's and Don'ts. Negative-Side Waterproofing Trade Show Previews Ballasted Roof Basics $4.95
Winter 2011 Drainage Do's and Don'ts Negative-Side Waterproofing Trade Show Previews Ballasted Roof Basics $4.95 The Solaire - New York, NY From concept to completion A green roof is about more than just
More informationBest Basement Water Management Practices
Best Basement Water Management Practices Guide written by Patrick Sluss Sluss Construction (330) 224 5394 When a home owner is faced with a leaking basement there is a way to correct the problem and a
More informationNCMA TEK CONCRETE MASONRY FOUNDATION WALL DETAILS. TEK 5-3A Details (2003)
NCMA TEK National Concrete Masonry Association an information series from the national authority on concrete masonry technology CONCRETE MASONRY FOUNDATION WALL DETAILS TEK 5-3A Details (2003) Keywords:
More informationCurrent opportunities of sprayed waterproofing membrane. Frank Clement Technical Manager Sprayable Membranes MEYCO Global Underground Construction
Current opportunities of sprayed waterproofing membrane Frank Clement Technical Manager Sprayable Membranes MEYCO Global Underground Construction 1 What would we like to achieve? 2 What is desired? 3 and
More informationGeneral Construction Foundations. Concrete Waterproofing by Crystallization
General Construction Foundations Concrete Waterproofing by Crystallization Meeting the Challenge Protecting Foundations The structural integrity of building foundations, whether deep or shallow, can be
More informationWATERPROOFING SikaFuko INJECTION HOSE SYSTEMS UNIQUE WATERPROOFING SOLUTIONS FOR CONSTRUCTION JOINTS
WATERPROOFING SikaFuko INJECTION HOSE SYSTEMS UNIQUE WATERPROOFING SOLUTIONS FOR CONSTRUCTION JOINTS SikaFuko PROVEN INJECTION HOSE SYSTEMS INTRODUCTION SikaFuko is a range of specially designed, hollow-core,
More informationLAYING BLOCK AND BRICK
LAYING BLOCK AND BRICK Products highlighted in this section: SAKRETE Type N Mortar Mix SAKRETE Type S Mortar Mix Brick And Block Laying Basics The first step in building a brick or block wall is to construct
More informationContent. 4 The Company. 7 Fields of application for KÖSTER waterproofing systems and products
CONTENT Content 4 The Company 7 Fields of application for KÖSTER waterproofing systems and products Waterproofing systems 8 Masonry 32 Injection systems 44 Concrete protection and repair 58 Self leveling
More informationMASONRY RESTORATION Lime Putty Mortar Repointing Guide
1.0 Preparation for Lime Putty Mortar Pointing 1.1 Tools & Approach A. Grinding - When used in a controlled way, angle grinders with diamond-impregnated metal blades with a maximum 1/8-inch-thickness and
More informationMolds and mildew are fungi that grow
Appendix C: Moisture, Mold and Mildew Molds and mildew are fungi that grow on the surfaces of objects, within pores, and in deteriorated materials. They can cause discoloration and odor problems, deteriorate
More informationFoundations 65 5 FOUNDATIONS. by Richard Chylinski, FAIA and Timothy P. McCormick, P.E. Seismic Retrofit Training
Foundations 65 5 FOUNDATIONS by Richard Chylinski, FAIA and Timothy P. McCormick, P.E. 66 Foundations Foundations 67 FOUNDATIONS Let's assume that the retrofit has been done correctly from the roofline
More informationprotect your greatest asset... your home
hydraway Waterproofing System protect your greatest asset... your home HELITECH Waterproofing & Foundation Repair 800-246-9721 helitechonline.com Celebrating 30 years of Healing Homes. The Hydraway 2000
More informationWATERPROOFING SikaProof -A TECHNOLOGY
SikaProof -A TECHNOLOGY content What is SikaProof -A? 6 How does it work? 8 Where can it be used? 0 What are the advantages of SikaProof -A? 2 How should it be installed? SikaProof -A system components
More informationCONDENSATION IN REFRIDGERATED BUILDINGS
CONDENSATION IN REFRIDGERATED BUILDINGS By: Steve Salisbury Nov. 10, 2010 (revised Nov. 14, 2013) Introduction The following discussion reviews the basic causes of condensation in refrigerated buildings
More informationbout your HOUSE before you start Renovating Your Basement Structural Issues And Soil conditions
A bout your HOUSE before you start Renovating Your Basement Structural Issues And Soil conditions CE 28 b Ground slopes towards window well No granular fill or connection to footing drain Ground floor
More information2006 ICRI Baltimore Washington Chapter Outstanding Repair Project Award George Washington University Ross Hall Façade Restoration
2006 ICRI Baltimore Washington Chapter Outstanding Repair Project Award George Washington University Ross Hall Façade Restoration 2006 ICRI Baltimore Washington Chapter Outstanding Repair Project Award
More information3 Masonry and Manufactured Stone (Interior and Exterior)
3 Masonry and Manufactured Stone (Interior and Exterior) 3.1 Efflorescence (a whitish crystalline powder) is present on masonry surfaces. Efflorescence commonly occurs on masonry surfaces. This is not
More informationState of Connecticut Department of Public Health RADON PROGRAM
State of Connecticut Department of Public Health RADON PROGRAM Scope The Connecticut Department of Public Health (DPH) Radon Program is providing this information for contractors who decide to build radon
More informationSchlüter -KERDI-BOARD Substrate, structural panel, bonded waterproofing
Substrate, structural panel, bonded waterproofing The universal substrate for tiles Perfect covering No matter whether you work with mosaics or large format tiles, an absolutely level substrate with straight
More informationMineral waterproof coating PCI Dichtschlämme
Mineral waterproof coating PCI Dichtschlämme 305 for basement walls, swimming pools and potable water tanks With official test certificate. FIELDS OF For indoor and outdoor use. For walls and floors. For
More informationWhat you need to know about concrete block basement construction.
Designing and planning your new residence is a vitally important process, which will have a great influence on the future enjoyment of your home. A successful process will ensure all areas of the home
More informationEXTERNAL WATERPROOFING MEMBRANES BEST PRACTICE GUIDELINES
Building and Construction Industry A joint industry initiative produced by BSA Supershow logo.indd 1 30/01/2008 9:43:29 AM EXTERNAL WATERPROOFING MEMBRANES BEST PRACTICE GUIDELINES FAILING WATERPROOFING
More informationCHAPTER 8- REDUCING THE MOISTURE
CHAPTER 8- REDUCING THE MOISTURE I ve learned many different ways to cut down on moisture and dampness over my many years of being a homeowner. All those tips I ve included right here for you so that you
More informationBuilding Condition Assessment: 215-219 West Lexington Street Baltimore, Maryland
KPA The Joint Venture of EBA Engineering, Inc. and Kennedy Porter & Associates, Inc. 4813 Seton Drive, Baltimore, MD 21215 Phone: (410-358-7171) Fax: (410)358-7213 Building Condition Assessment: Baltimore,
More informationSolving Persistent Moisture Problems and Moisture Damage
B etter buildings Solving Persistent Moisture Problems and Moisture Damage Summary This three-storey, 15-unit, 1,300 square metre (13,993 sq. ft) walk-up was built in 1958. In the 1980s, the building started
More informationSection 4: Architectural Design
Section 4: Architectural Design 4.1 Design Flexibility and Compatibility...3 4.2 Moisture Protection...3 4.3 Surface Treatments...6 4.4 Exterior Surface Treatments...6 4.5 Interior Surface Treatments...8
More informationDAMAGE TO FOUNDATIONS FROM EXPANSIVE SOILS
DAMAGE TO FOUNDATIONS FROM EXPANSIVE SOILS J. David Rogers, Robert Olshansky, and Robert B. Rogers Expansive soils in many parts of the United States pose a significant hazard to foundations for light
More informationWater in liquid or in vapour form
Waterproofing With Cementitious Slurries By Dr. Hermann Lutz, Wacker Polymer Systems Water in liquid or in vapour form is the most destructive weathering element for building constructions, like concrete,
More informationSPECIFICATIONS FOR SEWER PIPE AND LINING INSERTION - TRENCHLESS; GENERAL GUIDELINES (As Provided by NASSCO)
SPECIFICATIONS FOR SEWER PIPE AND LINING INSERTION - TRENCHLESS; GENERAL GUIDELINES (As Provided by NASSCO) 1 Intent: The intent of trenchless sewer pipe Insertion is to rehabilitate the existing sewer
More informationLow-slope reroofing guidelines
Low-slope reroofing guidelines by Thomas Bollnow and Joan P. Crowe, AIA The NRCA Roofing and Waterproofing Manual, Fifth Edition, contains reroofing guidelines for steep- and low-slope roofing. The August
More information