Build your own garage - material and price list ok?

  • Erstellt am 2021-03-14 14:15:27

Nemesis

2021-03-17 12:10:00
  • #1
I am facing exactly the same situation and have a similar calculation. However, we are actually using the 17.5 cm blocks because of the larger interior width.

I still have the following questions:

- From which provider are you sourcing the gate including installation? Or is the installation done by someone else?
- We were advised to have a rafter spacing of about 70 cm due to the statics, are the 100 cm in your case from the statics or just a guess or something else?
- Can you and/or others tell me more about the advantages and disadvantages of these sandwich panels? We also want a flat or slightly sloped shed roof and have already considered several variations in the roof construction without being really sure...

Thanks and regards
 

11ant

2021-03-17 14:19:16
  • #2
Have you already presented the project (sorry, I just forgot your previous member name, where should I look in the history?)? Advantage of the sandwich panels: stable and as light as possible, not as stalactite-cave-like as with metal garages without fleece due to the insulation. Disadvantage of the sandwich panels: standard in commercial hall construction, i.e. the price level is not consumer-focused ;-)
 

Nemesis

2021-03-17 14:50:50
  • #3


What happened that your eidetic memory let you down? :oops:;) I presented it back then, although "only" the house, a carport was still planned at that time, but over time we decided on a garage instead. In other words, as with the OP here, the foundation slab is already in place, the structural analysis is done, the mason is ready, but the execution of the roof is not set in stone yet, hence the question. Sounds at least very interesting. Moreover, after (admittedly brief!) research, I don’t find the prices too overpriced...
 

11ant

2021-03-17 15:08:30
  • #4

It only has outages on some days. Menopause :)

I've never tried it, but firstly, professional stuff typically isn't fast-moving goods accessible to consumers and has to be obtained with markups upon request, and secondly, already pointed out, this mainly applies to the peripheral stuff.
 

Simon-189

2021-03-17 15:19:20
  • #5


As suggests, sandwich panels are standardly used in hall construction. Basically pure insulation (foam) coated on each side with either 0.6mm to 0.75mm profiled steel sheets depending on the manufacturer. On the inside, standard ALWAYS in RAL 9002 gray-white and lightly profiled (almost anything else is possible at extra cost), on roof panels on the outside 38mm high ribs. Very important for roof panels: observe the minimum roof pitch (usually 3° if there are no openings in the roof, depending on the manufacturer), use the correct self-drilling screws with sealing and, if possible, fasten them in the high rib because it is not the water-bearing plane. On the outside, many RAL color tones are available as standard depending on the manufacturer. Classic for something like this is RAL 8012 red brown... Manufacturers that come to mind are Hoesch, Arcelor, Roma, Lattonedil, Romakowski.

Was the roof structure described exactly in the building permit? Sandwich panels would also be my favorite for a garage roof, but are prohibited by the development plan.

Personally, I would not provide so many wooden rafters but use galvanized steel profiles as supports. On the ridge and eaves side, bolt on an angle (minimum support width 60mm for sandwich panels), add 2 IPE profiles in the one-third points (the mason will be happy about fewer support pockets) of the spanning direction/roof pitch (dimensioning by a structural engineer), increase the core thickness of the sandwich panel to 60mm or 80mm (greater structural span with hardly any additional cost because it’s only foam). The cost should remain similar, but you will have peace of mind in the long run.

That would be my conceptual approach as a steel construction draftsman ;)
 

11ant

2021-03-17 15:28:28
  • #6
Because they are not available in small quantities in roof tile colors?
 

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