Flat roof + terrace?

[_bystrom_]

A thought...
Is there any common construction when it comes to flat roofs (well, 3-5 degrees slope) with a terrace on top?
How is the actual construction between the roof surface and the terrace built?
I assume there are countless variations, but anyone with good tips?

The project is a future carport with a terrace on top, meaning it hasn't been built yet.
I had an idea ready in my head, but I'm starting to wonder if there's an easier way.

Tips are gratefully received!

 

[Johannabacken]

Hi,
Have you gained any insight you want to share?
Is the roof/terrace built?

Wondering
Johannabacken

 

[Ola78]

Normally, one starts by laying raw boards on the rafters, then paper (for condensation from the metal), and finally seamed sheet metal.

 

[kwattro]

Currently working on this myself, I will be using underlay felt and surface felt. On top of the surface felt, I will be placing wedges in pressure-treated material, probably attached with asphalt adhesive... Not decided yet... If anyone has suggestions, I am happy to receive tips.

 

[jeppeknaster]

Will do the same thing going forward (carport with terrace). I won’t have raw wood panels but I'm simply considering attaching a tarp between the beams that hangs a bit on one side. On top of that, there will be a 45X45 along the beam that I screw through the tarp, and then I attach the decking to this. The water that runs along with the tarp lands in a gutter. I plan to cover the inside of the roof with plywood and paint it white. I'll try to draw so it's understandable. I’ll get back to you.

 

[jocke_mejsel]

Tongue and groove boards, underlay felt, and a welded surface felt is the model. Then you place the terrace loosely without screwing through the roof. The variant with a hanging tarp sounds like a wobbly method to me. Ice will form on the tarp and when it melts, it will seep into the screw holes, resulting in rotten wood.

/ Johan- Roofer

 

[jeppeknaster]

Kind of like this

 

[jeppeknaster]

Rough boards, underlay felt, and a welded top felt is the model. Then you place the terrace loosely without screwing through the roof. The variant with a hanging tarp feels like a shaky method to me. Ice will form on the tarp and when it melts it will push into the screw holes resulting in rotten timber.

/ Johan- Roofer

I don't see why it would form on the tarp since it has a fairly steep slope. But it's just a matter of laying a couple of silicone beads between the 45-rule and the tarp, and that "problem" is solved. All timber is of course pressure-treated and will hardly rot in the coming years...

 

[jeppeknaster]

Significantly simpler and cheaper than the "original" http://www.til-tak.no/no/til-tak-light2