Polycarbonate for summer house roof?

[stringman]

Hi all,
Having repaired the corner of my summer house(see other thread) and decorated inside and out.
The blooming roof has stared to leak rather badly.
There seems to be no damage to the felt but the roof is sagging in the middle quite badly so I guess the water is pooling there (it was dripping slightly this morning even though the felt was dry on the outside)
I know the roof needs replacing.
I was thinking of going for a 10mm double wall polycarbonate sheet.

At the moment the roof is vgroove cladding 12mm thick which sits on a frame which sits on the outside of the summer house. The summer house isn't square but a square with a corner cut off if that makes sense)

I was hoping that I could get one sheet of polycarbonate 2500 x 2100mm but the maxiumum size of the frame is 2100 so there would be no overhang, which I suspect would cause a problem.



Any reason why I could remove the frame and fix it straight to the walls?

Or would I be better going for 2 sheets of 1220 which would give me a large overhang?

http://www.nick-gray.co.uk/Polycarbonate_Sheet/10mm_Twinwall/10mm_BORG?product_id=1120

Are there any issues with using Polycarbonate?

thanks in advance

 

[lostinthelight]

Are there any issues with using Polycarbonate?


thanks in advance

The noise created by rain hitting it can deafening.
litl

 

[stringman]

Yep
we had thought of that, but she kind of liked that idea!!!
Having investigated the idea further (after spending the afternoon tacking a tarpaulin over the roof as a temporary fix) I have realised that the cost of 2 sheets of poly plus the joining bar and all the tape etc isn't a huge difference to using V cladding from Homebase.
The only potential problem is that the Homebase cladding is 7.5mm thick as opposed to the 12mm currently fitted.
I have some nice thick timber I could add as crossbeam supports so not too worried about sagging (should I be??) so would that and felt be a better option?

 

[Nozzle]

Don't buy anything from homebase. That's the first rule of DIY.

It's expensive, or inferior but the same price or somehow not as good as what you might get somewhere else. Even B&Q is better, and that's saying something

Nozzle

 

[r896neo]

+1 to the above. The ones local to me dont even sell sand???