GREEN ROOFS

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GREEN ROOFS

• - Total Waterproofing Company

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Company Profile

• Total waterproofing Company is as the name
  suggests involved mainly in the business of
  waterproofing
• Roofs, walls (South west), expansion joints,
  bathrooms, water tanks.
• Basements and under ground tunnel.
• Some of our esteemed clients are as follows.
• Kamat builders Pnajim.
• Universal Beverages.
• Usha Ispat Ltd.
• MPT, Marmagoa
• ITC Ltd. Calcutta.
• Adani Agri Logistics Ltd. Ahmedabad
• D.B. reality. Mumbai.

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• REASONS FOR CHANGE
• We in Goa and along the West coast of India live
  in a hot, humid tropical climate where the
  rainfall is heavy. The houses should be built to
  keep the interior of the building as cool as
  possible, reduce humidity and remain dry in the
  monsoon.
• Heavy rain during the monsoons raises the
  humidity which encourages the growth of moss on
  the roof which making it look black and ugly.

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• REASONS FOR PROBLEMS
• HEATING
• During the day the heat from the sun heats the
  top most floor of the building. The floors below
  get hot to a lesser extent.
• Lower floors receive most of the heat from the
  walls. The heat coming from the walls depends on
  the height of the walls and the number of floors
  in the building. Greater the height of the walls
  and larger number of floors more heat accumulates
  inside the building.
• Humidity can accumulate if the ventilation is
  poor, especially if hot air is unable to escape
  from inside the building.
• LEAKAGE
• Leakages occur in RCC roofs due to cyclical
  expansion and contraction in the slab from
  cracks, construction expansion joints.
• Honey combing within the slab and also due to
  poor leveling of the top finished surfaces
  contributes to leakages.
• If inclination of the RCC sloping slabs is less
  than 25 degrees the possibility of leakage is
  more. Less inclination restricts the height of
  the roof from the inside reducing the air space
  above, contributes to heating also It is liable
  to leak unless waterproof tiles are fitted on the
  top. Also since the slopes are less on the
  western side rain is likely to blow in the joints
  between the tiles in heavy wind and rain making
  the slab wet.

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• EXISTING SYSTEMS OF ROOFING
• RCC
• Titled Roofs
• Sheet Metal

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• RCC Roofs
• PROS
• Very safe (thieves ) secure from most elements
  of the weather.
• Lasting.
• CONS
• RCC roofs are costly
• RCC roofs absorb heat during the day and can
  retain them for long periods of time making the
  house really hot and uncomfortable to live in.
  Retains humidity unless extremely good
  ventilation is provided.
• Leakage from rain water is very difficult to
  handle and can recur even if waterproofed.
• Construction takes a long time and in case the
  existing structure requires extension, it becomes
  very messy and the joint is liable to leak.

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• Titled Roofs
• PROS
• Tiled roofs if made high and steep are cool.
• Cheaper to make. Quicker to lay and complete.
• Cool and comfortable to live in if the roof is
  steep and very high.
• CONS
• Tiled roofs allow water to wet the rafters which
  reduce their life span and need constant
  maintenance.
• Tiled roofs also tend to leak very badly if tiles
  are broken or get shifted.
• Unless tiles are moss proofed they become black
  and look ugly.

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• Sheet Metal
• PROS
• Quick to assemble.
• Can handle rain water very well if made steep.
• Secure from thief's
• CONS
• Sheet metal roofs have a limited life span
  (rusting particularly with bird droppings). Nor
  suitable close to the Sea.
• Aesthetics are poor particularly after five
  years.
• can leak from joints if the slope is less.
• Very noisy and disturbing in the monsoon.
• Expensive to build.
• Could be blown off in a storm.
• Very hot and humid.

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Solution

• GREEN ROOFS
• How do we address these problems?
• We at TOTAL WATERPROOFING have conceptualized
  GREEN ROOFS which largely eliminates most of the
  above mentioned defects.
• Also it has other advantages over most types of
  roofs.

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• PROCESS
• These roofs are made of composite treated small
  steel trusses, board and Mangalore tiles.
• Steel is painted with primer and painted over
  with oil paint to protect it from rusting.
• The boards are screwed down with galvanized
  screws.
• On the outside treated Mangalore waterproof tiles
  are fitted to12 mm boards. The joints of the
  board are sealed with flexible sealant. These
  provide the first two waterproof barriers.
• Tiles are treated in three stages making it
  waterproof, moss-proof and retain their natural
  color or painted.
• Inside of the truss a 6 mm board is nut bolted,
  its joints sealed and drainage to exterior is
  provided. This ensures a third waterproof
  barrier.
• Very good ventilation is provided. Hot air
  starts flowing from the base and is let off from
  openings at the top most point.
• The roof is made steep to increase the air space
  inside, and allow for faster drainage of rain
  water reducing the possibility of leakages.
• SS netting fitted at the openings to prevents
  rodents and birds from entering the hollow space
  inside the roof.
• Roof ends cover the wall to give protection to
  the wall from rain and sun.

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• BENEFITS OF GREEN ROOFS
• COOL
• Sloping roofs made 30degrees or more, this
  provides more space to trap hot and moist air,
  more volume of air increases insulation. Also
  the large space at the top above the bracing
  increases the flow of air through the entire
  structure. Hot air can enter at the base, rise
  and exit from the apex continuously keeping the
  structure cool this also reduces humidity. The
  draught of air increases with the height of the
  roof. The Insulation of the roof is very high
  due to double walled with 5 air gap also the air
  draft extracts heat from the inside.. These
  roofs end well over the walls reducing the amount
  of direct sun and rain striking the walls.
• GOOD ESTHETICS
• Steep sloping roofs are more visible. These
  roofs can be made very steep.
• Covered with terracotta (or colored) moss
  proof tiles enhances the esthetics of the
  building.
• COST EFFECTIVE
• The total cost is less than RCC sloping
  slabs if the cost of waterproofing from outside,
  internal plastering of the ceiling and covering
  with tiles or painting is included. Environment
  friendly as Less cement steel is consumed.

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• LESS CONSTRUCTION TIME COMPELETELY WATERPROOF
• Making these types of roofs is much faster
  than normal RCC roofs. The inside has a finished
  surface and can be painted directly
• High degree of waterproofing is achieved as
  three separate waterproof layers with separate
  drainage ensure no water enters even if tiles
  break or misplaced. Joints between the boards
  are sealed with flexible sealant.
• EASY AMMETIES
• Concealed lighting and sound system can be
  easily fitted and supply pipes accommodated in
  the air gap.

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• CONTACT DETAILS
• Total Waterproofing Company.
• 434, Fatorda Goa 403 603.
• Ph 0832 2741187. Mo. 9881095008.
• F.T. da Costa.
• E-mail totalwaterproofingcoltd_at_gmail.com
• Web site www.totalwaterproofing.com