We have a glass roof resting on L-profiles in glulam beams. This is never airtight, the structure moves with the seasons and creates small leaks here and there. The previous owner has sealed the glass with silicone, but that's not enough. I'm thinking of moving the glass so that they rest in an aluminum profile on top of the beams instead and sealing with bitumen tape. Has anyone tried this or have other experiences that could be helpful?
I've been looking at various systems, but how do you know they are leak-free?
I lack references on these systems.
Regards,
/CC
I didn't say that, but significantly better than the L profile with a joint. Schüco changed their roof systems about 5 years ago to a 3-stage sealed system.
1. No through screws (the frame is mounted with clips)
2. The glass is taped with butyl tape before the covers go on
3. The profiles are self-draining
But this doesn't help if you want to reuse existing glass, i.e., renovate, then you just have to discard all the glass and aluminum and start over if you want to be 99% sure, because if you want to be 100% I don't recommend glass roofs. I can extend to roof windows (like Velux) but that's also a risk. This said after 17 years in the industry..
I have looked at various systems, but how do you know they are leak-free? I lack references for these systems.
Regards.
/CC
I can only speak for myself, but I have built a conservatory with ALIPLAST's system (Aluminum, despite the name -- Belgian company) and insulating cassettes from Emmaboda/SG. I think it has worked well. However, it was far from cheap.
Thanks for the great tips. 17 years in the industry and I don't think there are safe solutions against leakage, it worries me.
This is what my project looks like:
My challenge is also to find similar dimensions for solar panels and glass panels, both in area and thickness, and be able to use the same aluminum profiles. I prefer insulated glass because it's more aesthetically pleasing and I don't like the light that comes from insulated plastic roofs.
Nice! Unfortunately, Schuco's solution is among the best you can get today, SAPA has similar systems I assume, even though I have never worked with their roofing system. What have you planned for filling where there won't be glass? Please send a dimensioned drawing so I can take a closer look at this. Is it meant to be a residence? With so much glass and aluminum, the U-value will be around 1-1.2, which is quite poor for a roof. If you're making such a large roof, I recommend installing a skylight somewhere for ventilation in the summer. Also, equip the glass with at least solar protection glass, and preferably active glass (self-cleaning).
This is a greenhouse with insulation U1.1 in all building materials, that's the concept. The black parts are solar panels. There are two simple skylights in the middle with automatic opening. Otherwise, there are simple solutions with a masonry back wall and an insulated metal roof facing north. The foundation slab is insulated ground 150 sqm.
Where in the country?
What is the slope of the roof? About 30-35 degrees?
Where the panels will be placed, you install filling metal sheet/polystyrene/metal sheet. I can check what price and U-values I can get for this.
Where in the country?
What is the slope of the roof? About 30-35 degrees?
Where the panels will be placed, metal/foam/metal fill should be used. I can check what price and U-values I can get for this.
Best regards, fremax
Roof slope is 28 degrees, which is nearly optimal for solar panels. This is in Halland.
Yes, under the panels there should be metal and foam plastic about 30mm, what do you mean by fill?
It might happen that the panels get too hot on the backside in the summer; need to check what's applicable there.
Regards,
/CC
The roof slope is 28 degrees, which is almost optimal for solar panels. This is in Halland.
Yes, under the panels there should be metal sheeting and cell plastic about 30mm, what do you mean by filling?
It might happen that the panels become too hot on the backside in the summer, I need to check what applies there.
Best regards
/CC
Metal sheeting and cell plastic instead of glass is called filling. What is your budget for this construction?
Sheet metal and foam instead of glass are called filling. What is your budget for this build?
Best regards, fremax
About 600k including groundwork and slab and its labor costs, but not labor costs for assembly. It might sound cheap, but everything is included except the attachment of glass panels. The solar panels and inverter are not included either.
Best regards.
/CC
I would guess that the glass roof with alu, glass, and filling costs around 250-300k
Installation from a company that has done this before 30-50k
Lift 12-20k
screws, plates, etc., are additional
This is a rough estimate, I haven't been involved in calculations for about 3-4 years and know that prices have increased, as well as depending on where in Blekinge it is, how accessible, etc.
fremax said:
Are roof glass profiles with covers available for purchase in continuous lengths? Please upload a picturechris47 said:
