ᐅ Planning a gable roof and roof slope

PeterXYZ schrieb:
..Why have two full stories become standard? Could you please provide an example or explanation?

Standard might not be the right term. It might be better to say that this is increasingly being implemented. There are various reasons for this, such as:

- less built-up area
- energetically favorable surface-to-volume ratio (A/V ratio)
- better summer thermal protection, since especially roof surfaces contribute significantly to summer cooling loads.

Whether these are relevant criteria depends on your own goals. These can certainly be, or fortunately are, different.

PeterXYZ schrieb:
... Especially in winter, don’t you need them the most?

Not necessarily, since the annual balance is what counts. Photovoltaics at any cost is of course impractical. Therefore, a sales-independent yield simulation should be performed beforehand. This helps determine to what extent deviations from the ideal situation are still acceptable.

Best regards

Hello Euro

€uro schrieb:
Installing photovoltaic systems at any cost is obviously pointless.

I agree with you 100%.

€uro schrieb:
Therefore, a sales-independent yield simulation should be carried out beforehand.

I think that is more of a nice dream.
Do you, as an MEP planner, perform such yield simulations?
Otherwise, it will be difficult for you to find someone who does...

Because the industry has boomed so much in recent years, everyone is currently trying to sell you a photovoltaic system. Even people whose technical knowledge doesn’t extend to turning on their own computer.
Just the keyword *independent* already makes things complicated.

Then there are many who call themselves "experts" — unfortunately, this term is not legally protected in Germany...
Only a few of them actually know what they are doing...
But how are you, as an ordinary homeowner, supposed to assess the quality of such a self-proclaimed expert?
You’d need an expert to evaluate the expert.

Best regards
Micha

Hello!

Otherwise, I can highly recommend building a house with two full stories. Space utilization, footprint, natural light/ventilation, thermal insulation...

We chose the attractive option with a hipped roof – however, if you want to use the attic space, a shed roof (mono-pitched roof) might be a better alternative.

A high knee wall looks quite unusual from the outside – and it doesn’t really offer much benefit.

Best regards,
TomTom1

Micha&Dany schrieb:
...Do you, as a building services planner, perform such yield simulations?

Yes, because this is part of the overall concept. Without determining the actual demand (capacity, energy) for heating, domestic hot water, and possibly ventilation, realistic and meaningful solution development is hardly possible (basic assessment). Solar thermal systems or photovoltaics are just components within this. Without this basic assessment, it is almost impossible to economically evaluate the sometimes quite significant total investments.

Micha&Dany schrieb:
...Already with the keyword *independence*, it becomes difficult.

Anyone who hasn’t understood that we live in a pure sales society, where the salesperson cannot (or does not want to) provide independent advice, simply has to accept that and make do with whatever the trained salesperson pushes on them.

Micha&Dany schrieb:
...Then there are many people who call themselves "experts" — unfortunately, this term is not protected in Germany. But how should a regular home builder be able to assess the quality of such self-proclaimed experts?

The same applies to other fields, for example energy consultants. It is helpful to check their training and references in advance. Another good indicator is how the consultant approaches the task. Anyone who immediately offers the "ultimate solution" without a thorough basic assessment probably does not value independence and objectivity.

regards

Hello everyone, I am new to this forum and would like to ask the following: For our house in Liguria, we need a new roof. Lumber is expensive in Italy, so we want to keep it absolutely minimal and preferably easy to transport.

My question is: how strong do the ridge beams need to be? Key data: The house’s exterior dimensions are 4.30 meters by 6 meters (14.1 ft by 19.7 ft), with the ridge running along the longer side. Therefore, the ridge beam will be made in two parts so we can transport it by bus. It will be joined on a steel beam (as it currently is). For the rafters, we plan to use existing timber measuring 9 cm by 9 cm (3.5 inches by 3.5 inches). Currently, there are no purlins; the rafters rest directly on the exterior wall. We are considering whether to do it the same way or install a purlin. The roof pitch will likely be about 16° based on what I have found online. The roof will be covered with standard roofing panels.

Would a ridge beam sized 20 cm by 20 cm (7.9 inches by 7.9 inches) be oversized? There is no snow load.

Best regards,
susa1

Hello,

susa1 schrieb:
The question now is: how strong do the ridge beams need to be?

Only a structural engineer can help you with that........ no one here can give you an answer

Best regards