As you'll see on our video (above) our brand ambassador Craig Phillips uses various methods of application when he used 3C Weather Defy Masonry Protection Cream on the exposed brickwork side of his workshop. The first, and maybe easiest way to apply the product is with a roller brush. Any brand or style would do but Craig used the Silverline handle and sleeve brushes that we sell on our e-Shop here . The corners and edges, he used a standard paint brush and lastly, he successfully tested a Wagner Paint Sprayer. 

Any of these methods will be absolutely fine for your building and so, it comes down to personal choice and/or convenience of the location and particular application.

The first thing to know is that 3C Weather Defy Masonry Protection Cream can be used on both brand new build and old, existing substrates in exactly the same way! The highly protective hydrophobic liquid is based on siloxane meaning it will impregnate into many different stone surfaces both natural and artificial. You can rest assured that 3C Weather Defy Masonry Protection Cream can be applied directly to brickwork, cured cement & mortar, plaster, sandstone, roof tiles and many types of rendered surfaces. If in doubt, please contact our technical sales department  

A major selling point for 3C Weather Defy Masonry Protection Cream is that it forms a highly water-resistant layer but crucially still maintains water vapour permeability as well as not reducing the breathability of the substrate. Why does this matter? Maintaining water vapour permeability (and indeed breathability) when it comes to construction materials is vital for the durability, performance, and future health of all buildings. The following aspects explain how moisture moves as vapor, not liquid (or water), through various building elements such as walls, roofs, and floors.

1. Preventing The Buildup Of Moisture & Condensation

Water vapour is constantly being generated indoors from high humidity-forming areas such as kitchens and bathrooms where we cook, bathe, and also where people (and animals) gather and thus breath constantly. If building materials are vapour-tight, moisture often becomes trapped inside the actual walls and/or roofs etc.

This trapped vapour eventually cools and condenses into watery liquid condensation which is obviously not wanted.

The consequences of vapour condensation is all the issues that come with damp and this often means hidden damage to walls, floors and ceilings etc.

With materials designed to be breathable, vapours can diffuse safely outwards and away from the internal structure of your property.

2. Protecting Structural Integrity

A serious problem with any type of unwanted water or moisture ingress is the steady degradation of material, especially timber which can rot or warp as well as metallic structures such as steel beams and columns etc. which may rust or corrode.

Masonry can also suffer from damage caused by frost thawing out and last but not least, most types of insulation will perish or at least lose peak thermal performance if subjected to water and/or moisture.

3. Reducing Mould Problems And General Bad Internal Air Quality

As well all know too well, moist environments are breeding grounds for mould and mildew growth and that's just what we can see on the surface, mould can also develop inside the cavities of walls and ceilings where it's not seen yet can be very damaging!

The health impact of mould spores and microbial VOCs will affect indoor air quality and drastically increase health risks such as respiratory issues and allergies etc.

Being a breathable construction material, 3C Weather Defy Masonry Protection Cream allows moisture to escape, helping to keep humidity low.

4. Improving Thermal Performance and Energy Efficiency

As we all strive to be at least somewhat conscientious of our energy consumption for both environmental reasons and cost-effectiveness, we can look at how we insulate and clad our properties and obviously, wet materials conduct heat more than dry materials. Wet or damp insulation will not perform well over time and condensation increases heat loss.

With vapour flow management, buildings retain heat better and require less energy to condition.

5. Climate-Responsive Building Performance

In temperate climates like the UK, vapour generally moves from warm interiors to cooler exteriors and breathable envelopes allow seasonal drying which balances performance effectively year-round.

To Summarise why water vapour permeability and breathability are essential with coatings such as 3C Weather Defy Masonry Protection Cream we can say that they:

• Allow moisture to escape safely
• Prevent hidden condensation and decay
• Improve durability, energy efficiency, and indoor air quality
• Create resilient, long-lasting buildings

And so, by keeping water out, but allowing water vapours a controlled path to escape we create an effective and safe future-proof substrate(s).