Waterproofing Bangladesh

Here we are discussing about the Benefits to waterproofing in your commercial Roof. What is the main reasons for waterproofing of your building. And how much you can save money and structure lifetime that's are shown here. Here total top six benefits are shown.


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Engr. Bikash Das
Email: bdas1113@gmail.com
Contact: +8801701-745954

Water Proofing: Protection to prevent water entering in internal and external building structures like toilets, swimming pools, water tanks, retaining walls, roofs etc.

Damp Proofing: Treatment to a surface to resist the passage of water in areas like foundations, exterior walls, metal surfaces, metal staircases etc.


Common Water Damage problems:
1. Corrosion of steel reinforcement in concrete
2. Blistering of paint
3. Dampness on walls, roofs & Floors
4. Leakage in water tanks

Benefits of Waterproofing: 
1. Increased durability of concrete structures
2. Reduce chemical attack
3. Cost reduction in maintenance
4. Prevents growth of dangerous mold

Types of Waterproofing:

1. Below GradeWaterproofing: Materials that prevent water under hydrostatic pressure and are not exposed to weathering.

2. Above Grade Waterproofing: Material / systems that prevents water intrusion under hydrostatic pressure and are subjected to weathering and pollutants.

3. Roof Waterproofing: Material / systems that prevents water intrusion into horizontal and inclined elevation.

4. Waterproofing of Water Retaining Structures: Material / systems that prevents water intrusion into horizontal and inclined elevation.

Below Grade Waterproofing 
1. Basements
2. Foundations / Retaining Walls
3. Below Slabs / Between Slabs
4. Lift pits
5. Underground Car Parks

Below Grade Waterproofing: - SYSTEMS 



1. Cementitious System:-  Crystaline, Cementitious
2.  Liquid Applied System:- PU, Acrylic

BGW CEMENTITIOUS SYSTEM :

Adequacy

1. Suitable for inside & outside application.
2. Easy in situation of repair.
3. Good preparation not required.
4. Used as a secondary waterproofing system
5. Suitable for above & below Grade
6. No movement capability.
7. Not suitable for traffic areas.

Crystalline System 

1. Penetrate and reacts with the water in capillaries to form crystal, resulting in blocking water transmission.
2. Trowel / Brush / Dry shake on application method.
3. Long time chemical reaction.  Forms a part of the concrete. 

 BGW LIQUID APPLIED

Product At A Glance 
1. Bitumen
2. Rubberized Bitumen Emulsion
3. Damp Proofing Bituminuous Coating

Adequacy
1. Suitable for outside waterproofing.
2. Suitable for both above & below grade.
3. Suitable for horizontal and vertical application.
4. Highly elastomeric.
5. Not suitable for damp substrate application.
6. Not suitable for UV and traffic exposure.
7. Proper concrete curing is essential.

Above Grade Waterproofing 

1. Roof
2. Decks & Bridge Decks Coatings
3. Floors, Walls & Exposed Foundations

Requirement 

1. Resistance to sunlight.
2. Breathable.
3. Accommodate differential movement.
4. Resistance to chemical attack.
5. Abrasion & corrosion resistance

ROOF WATERPROOFING



Roofing CLASSIFICATION
1.Steep slope roof.
2. Low slope roof.

Roof Waterproofing Systems
1. Steep Slope Roofing Metal Panels
2. Shingles Tile

Roof Waterproofing Systems

1. Fluid Applied Systems
2. Protective system for concrete, wood, metal, asbestos roof.
3. Cementitious, acrylic coatings
4. Can also be used in wet and under tile location.
5. Good resistance to sunlight

Product At A Glance
1. Acrylic Coatings
2. Roofguard
3. Aquaseal
4. Roofcoat 

APPLICATION WATERPROOFING


1. Points to chart
2. Surface Preparation
3. Profile Restoration
4. Waterproofing installation
5. Protection

Application Guide Surface Preparation
1. Chemical Cleaning - Removal of oil, grease, dirt, etc.
2. Mechanical Cleaning Scarification - Removal of thick overlay dirt, weakened material Blast Cleaning - Removal of laitance, dirt, efflorescence and weak surface. Acid Etching - Not reliable method. Used in areas where other mechanical cleaning methods are impractical.


Application Guide Surface Preparation Chemical Cleaning Mechanical Cleaning
(i). Surface Reprofiling Surface Defects - Honeycomb , Void , Tie holes, Fins & Sharp offsets

(ii). Surface Reprofiling Repair - Removal of defective concrete. Cleaning Reprofiling with cementitious / epoxy repair mortars. (Repcon S / Cemtec R44)

(iii). Surface Reprofiling Penetration (Pipe) - Grouting with cementitious grout / Repair mortars / Sealant .

4. Application Application Tools - Brush / Roller / Spray

5. Mixing (for two component) 

(i) The two component should be mixed thoroughly until a uniform mix is achieved.
(ii) For cementitious coating, the powder component should be poured into the liquid part.
(iii) Mixing should be done by slow speed heavy duty drill fitted with mixing paddle.

6. Application Layers - Minimum 2 coats. Angle : Perpendicular to earlier coat.

7. Application Reinforcement (Optional) - Fiber reinforcement Effective junction /cracks.


Protection Waterproofing Surface: Tiles, Stone Flooring or Other.

Our Services,

1. Waterproofing কেন করবেন ।
2. Waterproofing কোথায় করবেন ।
3. Waterproofing কিভাবে করবেন ।
4. Waterproofing কি ধরনের মালামাল ব্যবহার করবেন ।
5. Waterproofing সবখানে একই মালামাল ব্যবহার করা যাবে কি না ।

এমন অনেক প্রশ্ন আপনার মনে আসতে পারে Waterproofing নিয়ে । যেকোনো প্রশ্ন এবং সমাধানের জন্য সরাসরি আমার সাথে যোগাযোগ করতে পারেন । অথবা আমাকে Email করতে পারেন ।

মোবাইল:- +880 1701 745954
ইমেইল: bdas1113@gmail.com