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BellMont Blog

The difference between a membrane, cavity flashing and damp proof course (DPC)

11/9/2018

13 Comments

 
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When it comes to buildings that have been damaged by water, there are three methods of repair an engineering consultant can use, these are either a membrane, cavity flashing or damp proof course. Not sure what any of these are? Read on to find out!
 
Membrane:
A waterproofing membrane is a thin layer of watertight material that is laid, injected into or sprayed onto a surface to prevent water from passing through.  There are three different types of membranes that can be used, these are sheet, liquid and injectable, which all achieve the same outcome but through different applications.
 
Cavity Flashings:

This type of waterproofing method involves a continuous sheet of waterproofing material that is installed across the gap of a cavity wall. Cavity flashings run along the length of a wall, diverting water out through weep holes, thus keeping the structural integrity of the building intact.
 
Damp Proof Courses:
And finally, Damp Proof Courses. DPCS are a layer of waterproof material in the wall of a building near the ground, to prevent rising damp. DPCS help to prevent excess moisture entering the building which in turn prevents serious structural damage and issue such as wet rot, dry rot, timber decay, rising damp and black mould.
 
And that’s it for solutions to waterproofing issues within your building. So now if an engineer comes to inspect your building in response to water damage within your building you’ll know exactly what they’re talking about! 
13 Comments
Tapco HomeDry Ltd link
5/1/2019 04:34:52 pm

Informative blog.

Reply
Kew Bricklaying link
19/2/2020 07:20:48 pm

The difference between cavity flashing and damp proof is clear and easy to understand and is also right on point.

Reply
Jasmine link
20/2/2020 02:01:47 pm

Glad you found this helpful!

Reply
Zachary Tomlinson link
25/2/2020 04:53:51 am

Thanks for helping me understand the different approaches to waterproofing! I had no idea that there's a membrane you can use to make something watertight, preventing water to pass through. I believe the membrane method is what my aunt asked me to look for since she wants to waterproof certain parts of our home.

Reply
Jasmine link
25/2/2020 02:14:49 pm

No problem. Thanks for reading!

Reply
waterproofing solutions bay of plenty link
27/11/2020 05:22:46 pm

Hey thanks for posting this useful content on the difference between a membrane cavity flashing and damp proof course presented here, I really hope it will be helpful to many. I hope you keep update us with such great tips and information in future too. This is a great post; I will share as much as I can. Appreciative content!!Well, I have visited another site Pacificwaterproofing.co.nz having some wonderful and similar information.

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22/2/2021 10:10:44 pm

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23/3/2021 12:18:57 am

Hey,
I noticed your Article. I just loved it.
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Reply
Sarah Smith link
25/3/2021 12:30:23 pm

Thanks for the information on waterproofing. I would like to prevent rising damp. I will start looking for a contractor to help me.

Reply
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27/7/2021 03:53:09 am

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23/9/2021 07:03:21 pm

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Loft Boarding Specialist link
18/1/2022 01:49:25 pm

Nice Post, Thank You !

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7/2/2022 10:54:31 pm

I’m not that much of a internet reader to be honest but your blogs really nice, keep it up! I’ll go ahead and bookmark your website to come back down the road. We are also offering similar Services.

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  • Services
    • Civil and Structural Engineering
    • Heritage Buildings
    • Expert Witness Services
    • Waterproofing
    • Concrete Repair Investigations
    • Project Management
    • Rope Access
    • Design Building Practitioner
  • Our Team
  • Case Studies
    • Facade Case Studies >
      • Bondi
      • Marrickville
      • Darling Point
    • Heritage Buildings Case Studies >
      • Chinatown Gate Refurbishment
      • St Sophia Church
      • Holy Trinity Greek Orthodox Church
      • Fortune of War Hotel
      • Spectacle Island
      • Ashfield
    • Waterproofing Case Studies >
      • Neutral Bay
      • Mascot
      • Summer Hill
    • Structural Case Studies >
      • King Street Wharf
      • Rockwall Apartments, Potts Point
      • Kirribilli
  • Blog
  • BULLETIN
  • Accreditations and Suppliers
  • Contact us