Flat Roof Waterproofing

flat-roof-waterproofing-system-example

Flat roof waterproofing systems (also known as liquid waterproofing for flat roofs) is something we have a lot of experience in. We are approved contractors for several waterproofing solutions, bitumen felt systems, Sedum Green Roof products, and single-ply systems.

Industrial Flat Roof Waterproofing

Many industrial flat roofing systems tend to be located above multi-storey buildings. Therefore, careful consideration must be given to liquid waterproofing.

Being waterproofing contractors, we pride ourselves on our previous work and the service we offer.

We have many years experience in a variety of systems and can help with:

  • Hotels, warehouses, and offices
  • Schools, shopping centres and leisure centres
  • Felt, rubber and liquid products
  • Single-ply waterproofing
  • Damaged and split flat roofing systems

As flat roof waterproofing contractors, we realise the importance of insulation design and certified drainage for all warm deck roofing systems. We have extensive knowledge of tapered insulation schemes. Likewise, we often work with contractors on finessing specification plans for client approval.

We also have extensive experience with inverted flat roofing systems.  Having completed many large projects, this system is most definitely becoming more popular. This is due to the limited solar degradation of the roof layers. Resultingly, they are protected with insulation and a ballast of pavers or a decking system.

How Can We Help?

As approved waterproofing contractors, we offer insurance-backed warranties for up to 25 years. We also carry out extensive surveys to include core samples and testing to create a site-specific solution. Essentially, this means that you can have peace-of-mind that our flat roof systems will perform exactly as they should.

Flat Roof Waterproofing FAQs

What is the best way to waterproof a flat roof?

There are various systems available that will provide warranties of up to 25 years. These are insurance backed following a stringent specification process being followed by an approved flat roof contractor and the chosen product manufacturer.

Various flat roof waterproofing options include:
- Reinforced liquid applied waterproofing systems / Resins such as PMMA and PU Systems along with GRP waterproofing
- Bitumous felt systems
- Bitumous Hot Melt structural water proofing systems
- Single ply systems

All the above systems can be either cold roofs or built up warm roofing systems. The solutions include tapered insulation or flat board insulation all to achieve a U Value that complies with building regulations.

What is the best sealant for a flat roof?

There are various systems for the sealing a flat roof. It is always important to have a full survey carried out by an approved contractor prior to any works being carried out. Hence, this is to ensure the solution meets the waterproofing needs of the roof and eradicates any water ingress.

How do you waterproof a concrete flat roof?

There are various systems available that can be applied to substrates such as concrete, asphalt, and metal. It’s also possible, in some instances, to overlay an existing waterproofing system with a new system as a full refurbishment to extend the life of the roof for many years.

How do you stop a flat roof from leaking?

Flat roofs are popular in commercial buildings but if they are not properly maintained, they can be prone to leaking. It’s important that before a solution is recommended that a full site survey is completed to determine the cause of the leak and to check for any damage that’s been caused. For example, pooling, flooding, mould growth, membrane and substrate damage, rusting and more.

The best way to stop a flat roof from leaking is to maintain it, carry out any repairs as and when needed, and use specialist roofing products. Many flat roof waterproofing systems offer manufacturer warranties of up to 25 years.

There are various options C&W Industrial Roofing offer, and these include:

- Bitumous felt systems
- Bitumous Hot Melt structural waterproofing systems
- Reinforced liquid applied waterproofing systems / Resins such as PMMA
- PU Systems along with GRP waterproofing
- Single ply systems

flat roof waterproofing - liquid roofing

Liquid Waterproofing for Flat Roofs

Reinforced liquid waterproofing for flat roofs is becoming extremely popular due to its proven versatility and reliability.

Liquid flat roofing systems can be applied to asphalt, concrete and timber decks. Additionally, in some cases they can be applied to existing waterproofing systems to save time and lower costs while still offering an extensive warranty.

Similarly, liquid flat roofing systems are also the preferred systems to be applied to either a green roof or inverted system.

flat roof waterproofing - felt roofing

Flat Felt Roofs

Bitumen felt waterproofing roofing systems are recognised as a cheaper alternative to single-ply and liquid systems. Moreover, they have withstood the test of time.

The latest felt flat roof waterproofing systems are extremely durable and offer warranties of up to 25 years (depending on requirements). All felt roofing systems can be applied to asphalt, concrete, and timber decks. Likewise, they can also be applied to green roof and inverted systems – and in some cases, existing systems. Therefore, if hot works are not an issue, the Bitumen felt is a fantastic alternative.

flat roof waterproofing - single ply systems

Single Ply Waterproofing

Being mechanically fixed or fully adhered, single ply waterproofing systems are recognised as a very competitive system.

Our ply waterproofing systems offer warranties of up to 25 years (depending on requirements).

All single-ply systems can be applied to asphalt, concrete and timber decks, and in many cases existing flat roof systems.

Single Ply waterproofing systems can also be applied to a green roof or inverted system by adding an extra protective layer.

We’re happy to arrange a site visit from our waterproofing contractors to understand your needs and prepare a detailed quote. Please contact us for more information.