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Fixing and Installing Your Cladding

Stuck on what profile to choose for your project? Unsure what fixings would be suitable? We have all of the answers you're searching for! 

Which tongue and groove cladding profile is the most popular? 

Our most popular cladding profile is the Nisa, also known as a shadow gap profile. This profile is very popular since it is perfect for vertical application as the boards will not collect any dirt, due to the placement of this profile. If you were to fit your boards horizontally, using the Nisa profile, a shelf would be present, therefore dirt would be collected, potentially staining the board. 

All profiles need to be installed where they can shed water. So that when it rains, the water will just run straight off instead of collecting on the boards. The Vera and Viola are popular profiles for horizontal application. 


When installing cladding, should I fix the boards together tightly? 

Generally, when installing timber cladding, you should always allow for a small gap of around 1 to 2mm between each board, especially when fitting externally. This is to allow for possible movement due to common moisture uptake on the board. If you fit your boards tightly together and they’re dry when fitted, any moisture uptake that the boards try to take on will put more pressure on the board and the fixings. This could consequently end with the boards popping out or bowing slightly. So, always allow for a small amount of movement. This can be done by putting a small spacer on the end of each board, to create equal spaces. After doing this, you will not have any problems with your boards reacting to the ever-changing climate conditions in the UK.

Which cladding profiles are suitable to run vertically? 

As aforementioned, our Nisa profile is the most popular option for vertical cladding. In general, any profile that doesn’t create a water trap is suitable for vertical orientation. 

Is there a reason why some cladding runs horizontally and others run vertically? 

Originally, the general rule of thumb would be to use the same size boards throughout the façade and run the cladding horizontally. However, today, there are so many different profiles and options available that you can run your cladding vertically if you are planning to exaggerate the height of the building, or horizontally if you are planning to soften the height of the building. 

The human eye usually picks up on the lines of the boards which will alter the perception of the height of the building. So, it would be beneficial to think about that and the final look you are aiming to achieve. 


I am thinking of installing cladding in a fin-style, for example, an L shape. What would you advise? 

To install your cladding in a fin style we would suggest screwing the board you would like to stick out of the building, to a flat board, creating the letter ‘L’. You would then leave a 1 to 2mm gap before fitting the next board and then repeat this across the façade. Ideally, you would create those pieces first and then install them onto the cladding battens. 


Which cladding profiles are suitable for running horizontally? 

If you plan to run your cladding horizontally, we would advise choosing a profile that has a slope or an angle deflection so that any water will run off. You do not want to install a profile that has a shelf that water can sit on, as this will create staining. 

What nails/fixings should I use for timber cladding?

To fix your cladding, we would always advise using stainless fixings, whether these are pins or screws. If you don’t want to see the fixings, we would recommend fixing the screws or pins through the bottom corner of the profile at a 45-degree angle. In general, we recommend using screws as they have better holding power. However, if you particularly want to use pins, as long as these are stainless and not galvanised, and at least 50mm long, so that you have plenty of room to pin into the batten, then this is also adequate. 

Still got some questions about fixings and installing your cladding? Feel free to call our Sales team on 0118 373 2211 or email sales@qtdgroup.com, we are always happy to help!

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