Retrofitting underfloor heating - affordable, fast and uncomplicated
Enjoy cosy warmth and save energy costs? Are you thinking about retrofitting underfloor heating? Whether it is a new building, an old building or a commercial building: efficient underfloor heating saves money – and can be retrofitted inexpensively with little effort by a specialist company!
Retrofitting underfloor heating: This is how it used to be done
Just a few years ago, it was expensive and time-consuming to retrofit underfloor heating: The underfloor heating was either installed over existing screed or the screed was completely removed before installation. In the first case, you had to live with installation heights of up to 10 cm – depending on the material – at the expense of the room height. The installation height in the area of staircases also proved to be problematic – and not a good idea for retrofitting only selected rooms. The second, less tempting alternative is to remove the old screed completely in order to then integrate the heating system into the new structure – time-consuming and expensive, not to mention the dirt and noise! A solution that you should choose at most if you are planning a complete renovation of your house.
Milling underfloor heating? A clean and cost-effective solution
All that is history: Innovative processes allow fast, clean retrofitting of underfloor heating systems close to the surface – with low flow temperatures and maximum efficiency. How does that work? How to lay a new heater when the screed is in the way? Quite simply, with a method that has been tried and tested since the 1990s: Underfloor heating can also be retrofitted under wooden floors and floorboards in old buildings. We simply mill grooves (or slots) for the heating pipes into the existing screed! As a specialist company for screed, we bring the milling machine and equipment with us. The prerequisite is a standard-compliant screed, smooth and hardened, with a minimum height of around 30 mm. The heating pipes must also meet quality requirements – oxygen diffusion-tight and corrosion-resistant. In order to mill screed cleanly, we use special equipment – powerful machines with extractors that immediately swallow the dust during milling. This means that the pipes for the underfloor heating can be installed directly and the floor covering laid without any build-up or drying times. Retrofitting your rooms with radiant panel heating only takes a few hours here. Can you do that in the bathroom? Of course – the tiles can be laid directly after installation of the underfloor heating.
Laying underfloor heating wet – on tacker plate
Alternatively, you can have your underfloor heating system set up on staple board. Here we lay the heating wet. The tacker system works with a special mounting plate to accommodate the piping. Made of insulating material that can be walked on because it is pressure-resistant, the staple board also provides thermal and impact sound insulation. In addition to plastic staple plates, there are also ecological solutions, e.g. made of mineral wool – in appropriate qualities depending on the traffic load and construction height of the floor. Furthermore, if the heat transfer resistance is insufficient, additional insulation may make sense. And that’s before any staple boards are laid: As a solid specialist company, we first assess on site whether additional thermal insulation is necessary. Good heating specialists plan an underfloor heating system professionally – and in such a way that every detail fits the project and building individually, right down to the type of installation in meander or spiral form. One thing we promise you already now: The costs are manageable at well under 100 euros per square metre!
Laying tacker plates: This is how a specialist company does it
Compressed to save space, we roll out the tacker plates generously on the surface to lay them on level, broom-clean ground. A special edge insulation strip helps to decouple the floor from the rest of the building in terms of sound. Now we place a foil apron made of tear-resistant fabric foil over the laid staple plates – this keeps them in place. To make it easier for our installers to cut the insulation and lay the heating pipes more precisely, a grid is printed on the staple plates by the manufacturer. Why are they called that? Because the heating pipes are firmly anchored to the thermal and impact sound insulation using plastic staples. This DIN-approved tacker system is particularly easy to install and cost-efficient; all components are matched to each other. In addition, dimpled sheets are also an option for wet laying: here the installer presses the cables firmly into the dimples for a secure hold. Once the heating pipes have been laid, we connect them to the underfloor heating manifold. And do the pressure test: Is everything really tight?
Screed from a master hand – for the perfect floor!
The time has come – we are applying the heating screed. It surrounds the pipework and embeds your underfloor heating into the screed. Did you know? It is not the floor covering that makes the perfect floor, it is the screed as the subfloor! At wirverlegenestrich.de we have the relevant know-how. Because a suitable screed
– Distributes pressure evenly on the insulation underneath
– levels unevenness of the substrate
– lifts a floor to the desired height
– lays a level base for floor coverings of all kinds
– provides thermal insulation and reduces impact sound
– can also be used or walked on without floor covering
Screed is our profession – for over 25 years. Which is why we follow the technological changes in our hobbyhorse with fascination. With ambition at the forefront of innovation, we are not satisfied with our work until you are.
Of course, we don’t use cement for underfloor heating …
… but anhydrite screeds such as calcium sulfate. After all, cement heats up more heavily – and only a handful of underfloor heating systems are dry screed capable. Flowing screed is self-levelling thanks to its liquid consistency, so it does not need to be smoothed, compacted or actively distributed. In addition, it convinces as a heating screed with very good thermal conductivity, easy processing and short drying time. In short, liquid screed sheathes heating pipes excellently, with ideal load distribution – a stable construction. Your new underfloor heating can go into operation!
Your new one – only as good as your underfloor heating manifold!
Now the heating heat only has to be distributed evenly to all heating circuits of the underfloor heating: With a heating distributor, each room, each office floor receives one (or more) heating circuit(s) of its own, to be individually regulated as desired. In turn, each floor of your building can have its own underfloor heating manifold. But you can also equip only selected rooms such as the bathroom and living room with underfloor heating. With several heating circuits, you can operate different system temperatures – and also assign each heating circuit a remote control and its own time program. Modern underfloor heating systems can also be controlled via a mobile phone app. Underfloor heating manifolds control flow rate and balancing separately for each heating circuit. Up to twelve heating circuits can be connected in one heating circuit manifold – ready to guarantee even heat distribution everywhere.
How do you finance the retrofit?
Competently installed, underfloor heating creates a comfortable indoor climate, increases the value of your property and can noticeably reduce your energy costs. Reason enough to change over now – from conventional radiators to underfloor heating. But how to finance the installation? If you meet certain conditions, there are government grants available for this renovation. However, there is one thing you should not do: Save money at the wrong end by having underfloor heating installed by unqualified tradesmen. Connection errors & Co. take revenge – you pay later. Underfloor heating retrofitting by a specialist company is a safe investment, whether for private housing or public buildings, production facilities or private houses.
We lay screed & underfloor heating: Let’s start a project!
Let’s talk to each other, about your building project! Our company takes the time to get to know you and your project – and then to propose a good solution at a fair price. Experienced screed layers and installers in your