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Is K Rend a System or a Product?

What is render?
Render is applied on external walls to seal them off against harsh weather conditions, or an opportunity to give your property a face-lift. Early rendering was a messy business, slapped on the walls using sand and cement and finished with coloured paint. Over the years, render technology has evolved greatly, giving a much larger choice of colours and finishes -enabling tailoring to specific environments.

For instance, hydrophobic renders can protect properties in damp environments from water penetration and weathering. Also, the renders contain flexible polymers, helping the surface retain its structure without cracking very easily.

Traditional render is subject to wear and tear and if not regularly maintained and repaired, can leave the building in an awful condition. Cracks may appear on older render systems, which may then cause damp and water penetration.
The thinner coat renders tend to use fewer bags material , which is why in most cases they have a tendency to be less expensive to install than thick coat renders.

What is K Rend?

K Rend‘ is often used in the external insulation business as a catch-all term for render. Just as the personal cassette player was most known as the ‘Walkman’ throughout most of the 1980’s and 1990’s, K Rend has the similar brand recognition.

K Rend in fact is ‘only’ a brand with a large range of various renders, manufactured by Kilwaughter, the chemical manufacturer parent company in Northern Ireland. K Rend traditionally produced ‘thick coat’ renders like dash receivers and Monocouche and has recently also ventured into the family of silicone render products.

K Rend render is a water-repellent, breathable solution – low maintenance and available in most colours.

Despite its reputation, it is only one brand amongst several external rendering products within the market. There are dozens of other systems that can be sourced and installed that do the same job.

What is the difference between K Rend and other render manufacturers?

As mentioned, K Rend traditionally manufactured traditional English thick coat renders, whilst in Europe thin coat flexible renders were significantly more popular. Over the years, various acrylic and silicone thin coat solutions have made it to these shores and are now growing in popularity. Several houses have been successfully retrofitted with these solutions.

Whilst K Rend also produces thin silicone renders, the European manufacturers probably have a longer history of using thinner coat products. However, K Rend stands up well against competitors’ products.

Both K Rend and other manufacturers now specify a flexible bead or mesh inserted into the base coat adhesive before the final layer of render is applied. However, since K Rend does not have a full external wall insulation system, beading is optional where it is mandatory on many other render systems. It is our view that the more flexible the render layer, the longer its lifespan, because it will be less susceptible to movement and surface cracking.

Does K Rend offer an external wall insulation solution?

Whilst K Rend can be used as the render based system on top of insulation, the brand itself does not have a certificate for an external wall insulation system (ETICS). This contrasts with many of the thin coat systems, which also come together with the external insulation system.

More and more, older homes are not just going through the re-rendering process, but homeowners are also upgrading the thermal efficiency of their properties as well as updating the render at the same time. It is a less expensive way to re-render, as with external insulation the homeowner or occupier should look to understand that heat cost savings over time would go some way to pay for the cost of the job.

K Rend and other render brands

We believe that certain renders will work in certain situations. For example, many properties in South Wales and Western Scotland are pebble-dashed and the K Rend offers the perfect solution to repeat this process. Also, some architects may specify Monocouche thick render scratch finish, and in these cases, it is reasonable to want to go for the K Rend system.

Just be aware there are other render manufacturers also exist which offer similar products to K-rend like EWI Pro Insulation Systems, Johnstones and Sto.

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10 thoughts on “Is K Rend a System or a Product?

  1. We used k-rend to render our property. It actually looks great and we were very happy with the finish, but it does take a bit of ‘washing’ before the finish settles. Immediately when the k-rend was applied to the home, if you rubbed your hand along the wall a powder came off. We just washed the walls with a hose and brush and then this stopped happening.

  2. K-rend is an excellent product, but the installer needs to know what they are doing. We have seen too many properties where the installer has clearly not installed this type of product before.

  3. Can you explain to me the difference between Thick coat render and thin coat render? What are the advantages and disadvantages of each?

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  7. This stuff I would NOT recommend. The walls to my property is black with algae and mould. It’s cracked, holds moisture like a sponge. Within months of our new build black mould streaks appeared.
    Try talking to K-rend and they blame the damp atmosphere!! Not what they claim in their advertising!! It most certainly IS NOT maintenance free. K-rend have been contacted and refuse to come along and see their poor product. I wish I could paste pictures of my blackened walls but this comment won’t allow this.
    As soon as I can afford to get it hacked off and replaced the better. Should be band as does not live up to their claims. And after care is minus zero..

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