Top Roof Waterproofing  Expert in Klang Valley, Malaysia

If you’re wondering why roof waterproofing is important, here are some of the answers:

• Improved Roof Lifespan – With a waterproof membrane applied on your roof, you will have an extra layer of protection from decay, leaks, and wear. Moreover, the waterproof membrane reflects light, minimizing the effects of the hot sun on your roof. This helps to extend the longevity of your roof.
• Economical – Compared to an entire roof overhaul, roof waterproofing is a much cheaper solution for roof leaks, at least in the short-term. You also won't need to repair your waterproofed roof as frequently, and this minimizes your maintenance costs.
• Environment-Friendly – Waterproof membranes are effective in reflecting heat and sunlight. This will help you save on HVAC costs during the hotter seasons by upholding steady temperatures. Waterproofing also minimizes the humidity levels in your home while also preventing mould growth. You and your family will be comfortable and confident that you’re protected from potentially dangerous structural issues. 

For best results, the following steps should be followed before the actual waterproofing process of a roof:

• Cleaning the surface – A proper cleaning of the roof surface is vital to remove grease, dust, paint, rust and other substances that may affect the proper adhesion of the waterproofing material.
• Examining the surface – Once the surface is clean, examine it carefully to ensure there are no elements that would cause water stagnation or undermine the effectiveness of the waterproofing layer. This task can be best done by an experienced waterproofing specialist such as our team at Roofing Man.
• Preparing the surfaces – Another important step before waterproofing is to prepare the surface depending on the waterproofing technique you’ll be using. You may need to consult a reputable roof waterproofing Malaysia contractor to advise you accordingly. 

​The steps to follow when waterproofing your roof will depend largely on the waterproofing method. There are two main types of waterproofing methods:

• Brush-applied coating
• Membrane application

Brush-applied coating encompasses two chemical components that come in a composite pack – a powder component, and a liquid component. You'll need to mix these components and then apply them on the surface using a paintbrush. 

You'll generally apply 2 to 3 coats. However, it's advisable to consult a waterproofing specialist on proper application. While this technique is usually effective, it can sometimes fail due to the nature of the surface.

Membrane waterproofing, on the other hand, is the most popular waterproofing method in Malaysia. It is more effective and durable compared to brush applied coating. It is ideal for large roofs and old roofs where the surface is not strong enough to handle the thin layer of chemical coating. 

There are two major types of waterproofing membrane and the process of applying them differ slightly:

• Bitumen based membrane – This waterproofing membrane typically delivers satisfactory results. To apply it, you will need to melt one side of the membrane and stick it on the surface. However, most homeowners don't like the fact that it is a tar-based substance that absorbs heat and so increases indoor temperatures.
• Acrylic-based membrane – This is one of the most innovative waterproofing membranes on the market today. It is applied with the help of adhesive, making it quite easy to implement.

​It is important to understand the characteristics of various waterproofing membranes. This will help you determine what type will suit your needs the best. Here are the common waterproofing membranes you would want to know about:

• Bituminous Waterproofing Membrane – This is the most common waterproofing membrane. It is composed of petroleum-based asphalt material and is exceptionally resistant to moisture penetration.
  
  It comes in a liquid emulsion form, and you can apply it using a trowel and roller. The major setback of bituminous waterproofing membrane is that it has the potential of drying out over time, becoming brittle, and allowing moisture to pass through.
  
  
• Liquid Waterproofing Membrane – This type of waterproofing membrane is characterized by low VOC content, low odour, and easy application. Known to offer the most value of all waterproofing solutions, it is impermeable to hot and dry conditions. It doesn’t crack, crash, or shrink. 
  
  
• Elastomeric Waterproofing Membrane – This membrane is commonly regarded as a lifetime waterproofing solution thanks to the fact that it can last for decades. It is impervious to chemicals, gases, and water. You can apply it using a paintbrush or a roller, and it doesn't require any reinforcement. 

The cost of waterproofing a flat roof will depend on your location, the type of waterproofing method used, and the condition of your roof. Generally, you can pay as little as RM100 or as much as a RM3,000 or more. Our waterproofing contractor can assess your roof and advise you on the actual costs—we offer free cost estimates.