ᐅ Cutting Your Own Timber for the Roof Frame – Moisture Considerations – Scheduling
Created on: 15 Dec 2021 15:38
T
Thomas.W
Hello dear forum,
We are currently planning the construction of our house.
We are planning a solid masonry house with a pitched roof. All work will be subcontracted to individual trades.
Our plans are already quite advanced.
We have already contracted most of the companies and are basically just waiting for the completion of the new development area.
Originally, we wanted to start at the end of 2022, but due to the delayed start of the site infrastructure, we decided to begin in spring 2023 instead.
The construction company has scheduled our project as their first site once weather conditions allow.
Now to my main topic.
I have some questions regarding the roof structure. I have already tried to clear up my lack of knowledge by searching on Google, but I still don’t fully understand. I hope you can help me. Due to the sharply increased cost of timber, we want to fell our own wood. We have our own forest, and our carpenters with a sawmill are only 2 meters (6.5 feet) away from it.
I have already discussed this with them, and they said it would be sufficient if I cut the wood in winter 2022 and then bring it to them. The logs would then be stored outdoors until they process the wood.
If we start excavation at the beginning of March, we should be able to begin raising the structure around May.
My question is whether the timber will be sufficiently dry for that?
Or will it have dried enough by then?
The company has been around for a long time, and I haven’t heard anything negative regarding the quality.
Is this approach common in construction?
I would appreciate any help you can provide.
Thank you in advance.
We are currently planning the construction of our house.
We are planning a solid masonry house with a pitched roof. All work will be subcontracted to individual trades.
Our plans are already quite advanced.
We have already contracted most of the companies and are basically just waiting for the completion of the new development area.
Originally, we wanted to start at the end of 2022, but due to the delayed start of the site infrastructure, we decided to begin in spring 2023 instead.
The construction company has scheduled our project as their first site once weather conditions allow.
Now to my main topic.
I have some questions regarding the roof structure. I have already tried to clear up my lack of knowledge by searching on Google, but I still don’t fully understand. I hope you can help me. Due to the sharply increased cost of timber, we want to fell our own wood. We have our own forest, and our carpenters with a sawmill are only 2 meters (6.5 feet) away from it.
I have already discussed this with them, and they said it would be sufficient if I cut the wood in winter 2022 and then bring it to them. The logs would then be stored outdoors until they process the wood.
If we start excavation at the beginning of March, we should be able to begin raising the structure around May.
My question is whether the timber will be sufficiently dry for that?
Or will it have dried enough by then?
The company has been around for a long time, and I haven’t heard anything negative regarding the quality.
Is this approach common in construction?
I would appreciate any help you can provide.
Thank you in advance.
B
Benutzer20016 Dec 2021 15:05So, for the father, it was not compliant with DIN standards and therefore defective. Regardless of whether it works in individual cases, I would prefer my house to be built according to recognized standards.
Nowadays, windows are no longer simply foamed in place during installation. Even if the installation works on the property, it is still not correct because it does not comply with the current standards or regulations.
H
hampshire16 Dec 2021 15:10Thomas.W schrieb:
And just as a side note: we usually use our forest only for firewood.
But this is probably not the right place for that.This raises the question of the type of wood. That, in turn, is important for the drying process and suitability for the roof structure.M
Myrna_Loy16 Dec 2021 16:44The question is whether it will be a rafter roof or a purlin roof. If it is a purlin roof, the rafters can be slimmer depending on the planned roofing and insulation compared to a rafter roof. For a photovoltaic system, however, they should be stronger again. The costs are not very high, and if the wood is self-delivered and cut, the savings are likely minimal. It also probably does not save much time.
Search for
Informationsdienst Holz DIN 4074
Search for
Informationsdienst Holz DIN 4074
Thomas.W schrieb:
You might think I’m naive. I would rather call it ignorance.
Could you then explain how the process is actually supposed to work?
That would be more constructive and helpful for me.
And just as a side note: we usually only use our forest for firewood. Then you should probably stay completely away from the long timber sector because it is a completely different matter in several dimensions (species, quality, cross-sections, etc.). Firewood is not cut from the prime sections. A roof frame is a three-dimensional structure. Using engineered wood products along the purlins—that is, in the ridge-parallel direction—and solid-sawn timber along the rafters—that is, in the crosswise, gable-parallel direction—results in a construction that is only partly stabilized against warping. Advances in timber construction techniques since the end of the "Kaiser Wilhelm" era didn’t come about arbitrarily—aside from the fact that premium-quality, prime wood is currently extremely rare and would be a first-class waste as a retro style roof beam. I invited you to provide the specific house design so I could advise you more precisely; after not receiving it several times, I won’t repeat the request. How the process—assuming you meant “actually” instead of “ärgerlich” (annoying)—works has already been explained here: 1. The wood to be processed next year was already felled in 2018, 2. boards have been sawed (or will be sawed) from it, 3. engineered wood is used in both structural directions—although whether it makes sense to use this as rafters in beam cross-sections cannot be judged from the text alone. Besides, timber that is ready to be felled and generally suitable for construction purposes very rarely produces the required beams these days: the wood of your boldest dreams would likely be warped either before or after sawing, making it unsuitable for your intended use—and it would not hold its shape dimensionally or structurally, probably to a degree relevant for statics. All your naivety can be fully explained by your admission that you have only dealt with wood for fuel so far. If the processing company shares your naivety, I unfortunately see no advantage in the combined role of logging and processing operation here.
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Myrna_Loy schrieb:
The question is also whether it will be a rafter roof or a purlin roof. If it is a purlin roof, the rafters can be slimmer depending on the planned covering and insulation compared to a rafter roof. For a photovoltaic system, they should be stronger again. They don’t cost much, and if the wood is supplied and cut by yourself, the savings are likely marginal. It also probably won’t save much time.
Search for
Informationsdienst Holz DIN 4074 A purlin roof structure is planned. The reason for supplying the wood myself was precisely the price.
hampshire schrieb:
This raises the question of the type of wood. This, in turn, is relevant for drying and suitability for the roof structure.The plan is to harvest spruce wood.
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