Inverted Roofs

Inverted Roof Waterproofing & Roof Insulation

Your Flat Roof Waterproofing Services Provider

Why Multi-Dex Roof Waterproofing and Roof Insulation is your solution.

Trusted South African roofing insulation specialists since 1994. Multi-Dex provides flat roof waterproofing, concrete slab insulation, and leak protection for homes and businesses.

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Inverted Roofs For Concrete Slabs

Inverted/Wet Insulated Concrete Roof Application. Important – this is the most basic inverted system and does not include the bidm cloth or drainage system.

As noted, we can customize the complete system to suit the architects and clients requirements as needed.

Once the torchon is completed with the protective aluminium coating, this system is installed.

Advantages – it protects the waterproofing layer (the buried system does not require 3-yearly service intervals), insulates the building structure very well and is extremely pleasing to the eye.

Process Concrete slab applications

Any and all concrete slabs. As noted we do not do the actual slab and building up of the concrete slab that would be the builders/developers scope of works.

1

Step 1

  • Evaluate the existing waterproofing: If needed, we strip and remove existing waterproofing and prepare area for new waterproofing.
  • Supply and fit new waterproofing as per specification.

2

Step 2

  • 1 x layer 40mm 32DV Multidex insulation panel, the specifications are available on request, we have found this is best suited for our climate and weather conditions. As per usual we are able to customize the properties of the insulation panels based on the clients and architects needs and specifications.

3

Step 3

  • 1 x layer 19mm crushed stone at an average depth of 50mm, the stone is the ballast that keeps the panels in place in the most severe of storms

4

Step 4

  • All drainage points/full bores/side outlets to receive the Multidex stone/leaf guard to keep stones and debris out of the existing drainage system

Insulation Specialists

01.

Low Pitched Metal Roofs - Domestic

There are several reasons why you should consider low pitched roof insulation, whether for a residential, commercial, industrial or retail building.

02.

Low Pitched Metal Roofs - Commercial/Industrial

By insulating a building, one can reduce heat loss in colder weather, and reduce heat surplus in warmer weather. This would save energy, save cost and increase comfort. Ultimately, Insulation contributes significantly to reducing a home or company’s carbon footprint.

03.

Concrete Slab Application

Good roof insulation and waterproofing ensures a tight, weather-proof seal, and improves your home, business or factory’s insulation.

04.

Inverted Roofs For Concrete Slabs

Did you know that up to 25% of heat can be lost through its roof? A well-insulated flat roof can make all the difference.

05.

Inverted Roofs System / Full Spec

We can customize the complete system to suit the architects and clients requirements as needed.

Commercial Roofing

Retail Roofing

Residential Roofing

Our Working Process

01.

Consultation

02.

Proposal

03.

Installation

04.

Inspection

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Here’s What Our Client Say About Us

“The new low pitched roof waterproofing you installed over our babies’ nursery has bought peace of mind to all of us here at TLC. Not having to worry about a leaky roof every time we have rain is such a great relief! Thank you Multi-Dex!”

Pippa Jarvis

MD, The Love of Christ Children’s Home

My house has a roof construction which is extremely prone to leaking. It used to be a nightmare until I began my long road with Multidex about 15 years ago. Since they sealed my roof and aided with some structural changes, my nightmares have disappeared. They maintain their work every 3 years, which is worth every cent because they have gone beyond the 10 years of their original guarantee, still honouring their workmanship and material, still responding to each little problem which may arise.
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Dr Eras van der Walt
Our complex have been dealing with Multidex for the past 10 years for all our water proofing requirements. Multidex is a highly professional company with professional and friendly staff. I can recommend Multidex for all water proofing requirements.
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Christine
I have had the waterproofing system installed by Multidex for approximately seven years, and I am extremely satisfied with both the product and the service provided. Since installation, the system has made a significant difference to the internal temperature of my property, keeping it noticeably cooler in summer and warmer in winter. Most importantly, it has successfully prevented leaks and has performed exactly as promised. The workmanship was very neat and professional. The company also carries out maintenance every four years, which gives me continued confidence in the long-term performance of the system. Overall, I am very happy with the results and would confidently recommend Multidex to future clients.
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Byron Sutherland
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