Hello!
I am planning a glass-enclosed patio that will be usable more or less year-round. I currently have an existing patio with standard 28 mm decking on 120 mm joists built according to all the rules.
See the image below that illustrates my question, which is likely easy to answer for carpenters/construction engineers:
My questions are probably as follows:
* How should the "joint" between INDOOR and OUTDOOR be? Is it correct, for example, to place the glass profile on the old decking or should it be placed "INDOORS"? How do I prevent water from seeping under the profile in that case? Or is it correct to place the profile on the decking? In that case, how do I prevent water from getting under the profile or between the decking boards? I can't see how to properly seal it here.
* On one of the walls, I will be building a regular wooden wall with windows. Here I have the same problem with the bottom plate of the wall, which will be exposed to the elements and may rot, regardless of whether I place it on the decking or on the INDOOR floor particle board.
I've considered metal or other materials, but water can run under the metal between the existing decking boards. The only possibility I see is to lay some sort of plastic with a drip edge outward so that water that hits the side touches the plastic and runs off, i.e., try to wrap everything that SHOULD NOT come into contact with water (particle board, insulation, etc.) in plastic. This plastic would have to be laid a bit higher. Is that a sensible alternative?
I welcome thoughts and tips on how to proceed, as I don't want the structure to rot away or mold after the first winter and snowmelt.
Under the patio, it is dry with gravel and stones, and I've considered laying plastic here as well to prevent moisture from rising up from the soil about 1 dm below the gravel, but maybe that's unnecessary?
I am planning a glass-enclosed patio that will be usable more or less year-round. I currently have an existing patio with standard 28 mm decking on 120 mm joists built according to all the rules.
See the image below that illustrates my question, which is likely easy to answer for carpenters/construction engineers:
My questions are probably as follows:
* How should the "joint" between INDOOR and OUTDOOR be? Is it correct, for example, to place the glass profile on the old decking or should it be placed "INDOORS"? How do I prevent water from seeping under the profile in that case? Or is it correct to place the profile on the decking? In that case, how do I prevent water from getting under the profile or between the decking boards? I can't see how to properly seal it here.
* On one of the walls, I will be building a regular wooden wall with windows. Here I have the same problem with the bottom plate of the wall, which will be exposed to the elements and may rot, regardless of whether I place it on the decking or on the INDOOR floor particle board.
I've considered metal or other materials, but water can run under the metal between the existing decking boards. The only possibility I see is to lay some sort of plastic with a drip edge outward so that water that hits the side touches the plastic and runs off, i.e., try to wrap everything that SHOULD NOT come into contact with water (particle board, insulation, etc.) in plastic. This plastic would have to be laid a bit higher. Is that a sensible alternative?
I welcome thoughts and tips on how to proceed, as I don't want the structure to rot away or mold after the first winter and snowmelt.
Under the patio, it is dry with gravel and stones, and I've considered laying plastic here as well to prevent moisture from rising up from the soil about 1 dm below the gravel, but maybe that's unnecessary?
Where the glass profile should be placed depends a bit on the construction height of the different floors and the appearance of the trim. Both options probably occur. Sealing is done both with trim/sheet metal and in combination with sealant.
For the bottom rule on the wall, I would have used a pressure-treated stud. Sacrificial board or sheet metal on the outside.
Important for a good function in both of the above cases is a substantial roof overhang with a rainwater system.
Is there access for ventilation underneath? If so, I think it is sufficient.
I suspect that your drawing might not be completely to scale in consideration of the amount of insulation?
Have you considered using cellplast?
For the bottom rule on the wall, I would have used a pressure-treated stud. Sacrificial board or sheet metal on the outside.
Important for a good function in both of the above cases is a substantial roof overhang with a rainwater system.
Is there access for ventilation underneath? If so, I think it is sufficient.
I suspect that your drawing might not be completely to scale in consideration of the amount of insulation?
Have you considered using cellplast?