ᐅ Installation: Antenna Mast Mounted on House Exterior with External Thermal Insulation Composite System (ETICS)

Unlike our electrician, we would prefer not to install the satellite dish on the roof of our soon-to-be-built new house. On one hand, external lightning protection would be required there, and on the other hand, our electrician wants to charge us over 2,000 euros for the dish, mast, grounding, multiswitch in the attic, and installation. Since we only have one antenna connection in the living room, I find these costs quite high. IPTV is unfortunately not an option because we are located in the part of the village where the telecom company apparently ran out of fiber optic cables (our neighbors have 250 Mbit/s, the next apartment building has 1 Gbit/s).

There is now the possibility to install the satellite system on the east facade, through a window in the loft, at the perfect angle and with a clear view of the satellite. Since we are building with external thermal insulation composite systems (ETICS / external wall insulation), I am wondering what the best mounting solution would be.

When searching online, I came across various options. In my opinion, the best were mounting blocks or heavy-duty brackets. Has anyone had experience with the mounting blocks from different ETICS manufacturers? Or with heavy-duty brackets from Sto or Dosteba? The dish will not be very heavy (planned to be either a DigiDish 45 or an 80 cm (31.5 inches) dish), but it should also not suddenly fall on our heads in strong winds.

Or do you have a completely different suggestion on how to mount the dish on the facade with minimal thermal bridging?

We installed cylindrical mounting blocks to attach a vertical awning in front of the reading window. I checked with the technical support of the manufacturer of the external thermal insulation composite system (ETICS). Our plaster system is from Alsecco. There was a plastic cutting tool included for the drill. It is important to mark the locations clearly so they can be found again under the plaster. I was thinking of using magnetic nails. The roller shutter installer kindly used stainless steel ones.

Best regards
Gabriele

Ignore the electrician and look for a satellite company. In my opinion, it’s a defensive offer. Far too expensive. 800-1000 maximum.
250 Mbps (250 megabits per second) is more than enough for TV, by the way.

danixf schrieb:

Ignore the electrician and find a satellite company. In my opinion, that’s a defensive quote. Way too expensive. 800-1000 maximum.
250 Mbps (megabits per second) is more than enough for TV, by the way.

Yes, when I saw the electrician’s costs, that was exactly my thought. Since I’m not completely inexperienced, I wanted to first see if I could install the dish on the facade myself.

Unfortunately, we only have 18 Mbps (megabits per second) on our property because we are connected via a different street than the neighboring lots mentioned...

fach1werk schrieb:

We used cylindrical mounting blocks to install a vertical awning in front of the reading window. I asked the technical support of the manufacturer of the external insulation system (ETICS). Our plaster system is from Alsecco.

Great, that’s exactly what I had in mind. Did you anchor the screws and plugs for the awning directly into the masonry? And did you pay attention to anything regarding thermal bridges?

No, you don’t have to go all the way to the masonry. Imagine cylinders made from a denser, less foamed, heavier Styrofoam or foam rigid insulation. Depending on the required load capacity, they vary in diameter, and metal reinforcements can be foam-injected inside. The cylinders are as long as the thickness of the insulation boards, and for our purpose, they were only screwed in that far.

Ours were supplied by Dosteba GmbH, semi-finished products for ETICS (external thermal insulation composite systems), Reutlingen. I only communicated with Alsecco.

The package contained, I believe, 8 or 10 pieces, the milling tool used to cut out a clean cylinder from the insulation boards, and the cartridge with the special adhesive, DoPurCol or ST-Polymer. It cost about €90.

It is easy and clean to work with. The vertical awning of just over 2 sqm (21.5 sq ft) sometimes experiences considerable wind force, but everything is rock solid.

Best regards
Gabriele

There are installation baskets used in ETICS systems. However, you need to take action before the ETICS installation begins.

Alternatively, you can use ETICS anchors that are thermally broken, such as Fischer Thermax or similar. These should also be sufficient for mounting a satellite dish. Ideally, install them into the (concrete) intermediate ceiling.