Conservatory metal base

[honda]

I'm considering building a lean-to conservatory later this year using a metal base and have come across this video on Youtube.

In this the base appears to be below the surrounding ground level and am wondering if this is ok as I would have thought that it would be stood in water most of the time which is not good.
Would appreciate your thoughts or comments please.
(Start video at 4.00)

 

[honda]

Sorry but meant to put this in Building Forum could Admin. please move it

 

[^woody^]

With the cost, excavation and excavating pads, there is no real advantage to a traditional base. And that's before longevity comes into it.

 

[kingandy2nd]

I have a durabase on my conservatory. I found it quick and easy to fit, because I had an existing patio which I just extended slightly.

I agree the video is a bit strange as it needs to be above ground level. I had to dig down the ground level around my one and then built a deck

Here's a few pictures :



All in cost me £2.5k including the new opening and French doors into the house. (The conny was second hand on eBay).