ᐅ Affordable large-format facade or roofing panels / manufacturers?

Dear forum community,

I hope someone here can kindly help me.

I am planning to renovate our standard single-family house from the 1970s in the near future. This includes expanding the living area with extensions (using timber frame construction) as well as refurbishing and insulating the facade and roof. For insulation of both the facade and roof, as well as for the extensions, I intend to use wood fiber insulation boards.

Now to my question:

I want to design the new facade and roof covering with large-format (dark) facade panels.

The products from Eternit caught my eye, but the material price, often over 100 euros per square meter, discourages me.

Therefore, I wonder which alternatives and manufacturers you would recommend? Fiber cement as well as plastic panels would both be acceptable for me. Or would you clearly prefer one material over the other? If so, why? I would like to use panels in sizes from about 150 x 75 cm (59 x 30 inches) and larger. However, the price per square meter should be significantly below that of Eternit. It would also be great if the manufacturer is from another EU country, such as Poland.

Thank you very much for your recommendations and experiences.

Best regards,

Max

Allblack photovoltaic modules?
Color fits. Size fits. Certainly an alternative for the roof.

I strongly advise against Eternit! In 2008, we chose a high-quality facade cladding from Eternit (fiber cement natura). A few years ago, minor changes and efflorescence appeared; however, these have now become extremely unsightly (see attached picture). Customer goodwill from Eternit = NONE!

Hello, I consider a combination of curtain wall cladding made of large panels and wood fiber insulation boards (Pavatex, Gutex, etc.) to be structurally challenging. The main issue will likely be the attachment method. The wood fiber insulation boards are fixed using thermally decoupled anchors and screws. You will not find an approved system for attaching the cladding panels directly onto the wood fiber boards. Fixing the cladding panels directly to the substructure will be difficult: How to connect to the substructure? Which screws/anchors to use?

In my opinion, this combination does not make sense... I personally know a developer of cladding panels and have followed the development process somewhat. Although this was related to industrial/commercial buildings, you must never just screw panels on arbitrarily (due to suction forces, etc.). If a panel falls from a great height, it poses a significant safety risk.

By the way, Trespa might be a suitable material. Light-colored panels are usually cheaper than dark ones because light colors and pastel shades are significantly easier to produce with UV resistance than dark (wood) colors. UV protection is extremely important for plastics.

As an alternative, consider using squared timber in the desired insulation thickness. Insulate the cavities with mineral wool / stone wool. Then apply a black façade membrane (UV-resistant), and attach the façade panels with a gap using a counter batten painted black to create an air space. Small gaps between the panels are not an issue, as the breathable membrane would protect the insulation from some rain and wind. We recently installed Trespa cladding on our dormers and a few other areas, and I have come to appreciate the material even though it is not "natural." It is designed to last virtually forever.

Jansepp schrieb:

I am planning to renovate our standard single-family house from the 1970s soon. This includes expanding the living space through extensions (using timber frame construction) as well as renovating and insulating the facade and roof.

I believe it is fundamentally wrong to start such a project by demolishing the exterior cladding panels. Unfortunately, this is a common mistake made by novices, based on the idea of "clearing the path" by tackling tasks without a clear plan for their implementation. In other words, people brainstorm everything they want to do and then mark the items they have at least a rough understanding of; the next step is to turn the unchecked points into questions and ask the all-knowing internet. This approach sounds logical and clever, but it is only apparently so. The details remain details, and that is the tail you should not put before the horse. I recommend the proven sequence of "first design the main structure, then refine and adjust the entirety—existing building, renovations, and extensions alike."

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