Waterproofing

WATER PROOFING : REASONSBUILDING CONSTRUCTION REPORT

RIYA BAGCHIIII YEAR – BD.O.A : 17.09.2015D.O.S. : 24.09.2015

SHEET NO.

1

WATER PROOFING IS THE METHOD OF CREATING A PROTECTIVE LAYERING AROUND THE BUILDING PREVENTING THE WATER FROM SEEPING INTO THE BUILDING. WATER PROOFING IN BASEMENTS IS CARRIED OUT SO AS TO PREVENT THE INTRUSION OF FLUIDS OR SMELLS INTO THE BASEMENTS. WATER INTRUSION DAMAGES STRUCTURAL ELEMENTS. THE IMPORTANT ELEMENTS OF WATERPROOFING ARE SOIL, CONCRETE (BUILDING) AND WATER.

THE DIFFERENT TYPES OF WATER-RELATED PROBLEMS WHICH CAN OCCUR IN THE BASEMENTS CAN BE SEEN BELOW:

WHY IS WATER PROOFING ESSENTIAL?

THE ABOVE PICTURES SHOW THE PROBLEMS IMPOSED ON BASEMENTS BY FLUID MATTER (GASEOUS + LIQUID) THUS MAKING THE BASEMENTS UNHYGIENIC AND WEAK.

WATERPROOFING IS ESSENTIAL AT BELOW-GRADE AREAS TO PREVENT WATER INTRUSION AND STRUCTURAL DAMAGE. IT IS GENERALLY DONE WHEN THE BUILDING IS ON OR BELOW THE GROUND LEVEL. FLOODING, WATER DAMAGE AND MOLDS (HIGH MOISTURE LEVELS LEAD TO MOLDS) ARE MANY OF THE CAUSES THAT DAMAGE CONSTRUCTION.

DIAGRAM SHOWING THE DIFFERENT TYPE OF LIQUID LEAKAGE/ SEEPAGES IN BASEMENTS

WINDOW SWEAT

HUMIDITY

SUB SURFACE WATER

STANDING WATER IN BASEMENT WHITEMOLDS IN BASEMENT

ODOUR IN BASEMENTCAUSE OF MOISTURE IN BASEMENT



SHEET NO.

2

HYDROSTATIC PRESSURE

MOST BASEMENT AND FOUNDATION WATER DAMAGE IS CAUSED FROM HYDROSTATIC PRESSURE. HYDROSTATIC PRESSURE OCCURS WHEN THE SOIL AROUND AND BENEATH THE BASEMENT GETS SATURATED WITH EXCESS MOISTURE FROM RAIN, MELTING SNOW, OVER-WATERING, OR CONDENSATION FROM A/C UNITS. THIS WATER PUTS PRESSURE AGAINST THE WALLS OF OUR BASEMENT AND WILL EVEN START TO PUT FORCE AGAINST YOUR BASEMENT FLOORING. WITH CONTINUOUS HYDROSTATIC PRESSURE BEING PUT ON BASEMENT WALLS AND FLOOR, THEY START TO CRACK AND ROT BECAUSE OF THE PRESSURE ACTING AGAINST THEM. UNTREATED CONCRETE IS NOT ABLE TO PRVENT THE HYDROSTATIC PRESSURE AND THUS FORMS LEAKAGES.

HYDROSTATIC FORCE FACTING ON A BASEMENT, ALONG WITH HORIZONTAL FORCES.

CONCRETE PROPERTIES

• CONCRETE IS GENERALLY USED AS A BUILDING MATERIAL• IT IS BRITTLE, AND HAS MANY CRACKS. THE JOINTS IN CONCRETE ARE NEVER 100%. • PERMEATION FACTOR IS LOW IN CONCRETE. IT ABSORBS A LOT OF WATER DURING

CONSTRUCTION.• HENCE TREATING CONCRETE BASEMENTS IS A NECESSITY IN ORDER TO AVOID CRACKS

AND LEAKAGES.

DIFFERENCE BETWEEN TREATED AND NTREATED CONCRETE



SHEET NO.

3

CRACK IN A BASEMENT WATER LEVEL INCREASES DUE TO VARIOUS REASONS MORE INCREASE. DUE TO FLOOD OR HEAVY RAINS.

WATER SEEPS IN THROUGH THE CRACKS.

MORE CRACKS OCCUR DUE TO PRESSURE.

WATER BEGINS TO ACCUMULATE IN THE BASEMENT

FLOODING

SEEPAGE IN WALLS CRACKS FILLED WITH WATER.



SHEET NO.

4

THREE WAYS WATER ENTERS INTO THE BASEMENTS.

HAZARDS OF A DAMP BASEMENT:

A DAMP LEAKY BASEMENT CAN CAUSE:• TERMITES AND INSECTS• MILDEW AND MOLD• DRY ROT• WEAKENING OF SUPPORT BEAMS• RUSTING FURNACES• CRUMBLING OF WALLS• LOSS OF VALUABLE LIVING SPACE• ELECTRICAL HAZARDS• HEALTH HAZARDS• DETERIORATION OF PROPERTY VALUE

REASONS FOR WATERPROOFING BASEMENTS:

• TO PROTECT OUR BUILDING’S INTERIOR FROM WATER DAMAGE

FOR MOST OF THE TIME DURING CONSTRUCTION, THE INNER PARTS OF YOUR BUILDING EXPOSED TO THE ELEMENTS. THINGS LIKE THE FRAMES, THE FOUNDATIONS, WIRING AND INSULATION, AS WELL AS THE FLOORS. IF EXPOSED TO WATER FOR PROLONGED PERIODSTHEY MAYBECOME INFESTED WITH MOLD, RENDERING THE ENTIRE STRUCTURE UNSOUND AND UNFIT FOR HABITATION.

WATERPROOFING YOUR BUILDING MATERIALS DURING CONSTRUCTION WILL HELP PREVENT THIS FROM OCCURRING, PROMOTING IN YOUR FLEDGLING BUILDING A HEALTHY, STRONG START. AS YOU’LL BE BETTER PROTECTING YOUR MATERIALS FROM DAMAGE, IT ALSO PREVENTS EXPENSIVE DELAYS AND REPLACEMENTS.

• IT PROMOTES LONG-TERM COMFORT

WATERPROOFING NEW CONSTRUCTION SITE EARLY HELPS YOU TO START SEALING IT OFF MORE EFFICIENTLY THAN TRYING TO IT AFTER BUILDING HAS FINISHED. THE MEASURES TAKEN HELP REDUCE MOISTURE IN THE INTERIOR OF THE BUILDING, WHICH MAKES IT MORE COMFORTABLE TO LIVE IN, WHILE ALSO PROVIDING A FOUNDATION FOR FURTHER WORK LATER ON. BASEMENT SECTION WITH PROPER WATERPROOFING



SHEET NO.

5

• IT PREVENTS FLOODING IN BASEMENTS

BASEMENTS IN PARTICULAR ARE VULNERABLE TO MOISTURE SEEPING WITHIN THEM. WATER SOAKS THROUGH THE SOIL AND QUICKLY LEAKS THROUGH CRACKS AND FISSURES WITHIN THE CONCRETE, WHICH CAN LEAD TO FLOODING AS WELL AS MOLD AND MILDEW. DURING THE WINTER, THIS MOISTURE WILL THEN FREEZE, CAUSING IT TO EXPAND AND FORCE THE CRACKS OPEN WIDER AND MAKING THE PROBLEM WORSE. EVENTUALLY, THE ENTIRE BASEMENT COULD BE RENDERED UNSAFE.

• IT SAVES MONEY

WHILE THE COSTS OF WATERPROOFING MAY INITIALLY SEEM LIKE A SEVERE BLOW TO BUDGET, IT IS BEST TO THINK OF IT AS A LONG-TERM INVESTMENT THAT MAKES MONEY DURING THE BUILDING’S LIFETIME..WATERPROOFING, IF NOT DONE, WOULD POSE A THREAT TO THE PEOPERTY MAKING THE JOINTS WEAK AND WATER WILL DAMAGE THE PROPERTY CAUSING HEALTH OR LIFE HAZARDS.

A COMIC TAKE ON FLOODING IN A BASEMENTFLOODING IN BASEMENT FLOODING IN BASEMENT EXPLAINED WITH A DIAGRAM

Engineering

Waterproofing