Temporary protection for flat roof?

[Ian H]

I've raise a flat roof/bedroom ceiling on a side extension and need to wait a while before the roofer extends the hipped roof over the top.

So I now have a flat roof made of moisture resistant chipboard flooring. I want to cover it to protect it from the weather but not sure what to use.

At the minute it's covered with 1200 grade Visqueen but I can't see that lasting so I thought of either putting a sheet of rubber roof over the top (£220), a pond liner (£65) or tarpaulin (£25).

What do you think would work?

 

[Mottie]

Well they'd all do the job so why not go for the tarpaulin?

 

[Ian H]

I thought the tarpaulin might be the least waterproof when it's horizontal.

Although if I tarpaulin over the Visqueen I would hope it wouldn't leak.

It could be there for 2 months

 

[^woody^]

You'll be suprised how long 1200 guage polythene lasts on a roof. Years. Through two updates of Google Earth.

 

[HERTS P&D]

Use the pond liner, I used a tarp and it leaked like a sieve.

After you have finished with it you could make a bird bath for the Emu.



Andy

 

[Ian H]

Was that at yours Woody or somewhere else?

I could bury the Emu under a pond!! That sounds like a plan!!

There are PVC and rubber pond liners, the PVC won't be the same as the 1200's will it?

 

[^woody^]

Was that at yours Woody or somewhere else?

That saying about builders not finishing anything at home? It's true.

Tbh, I did make a really good job of the polythene cover.

 

[geraldthehamster]

The blue woven plastic "water resistant" tarpaulins that you get in the DIY sheds are not waterproof. I have a green one (also plastic) that I bought from a farm shop, that claims to be fully waterproof, though I've not tried it (bought it to keep a roof deck dry before EPDM installation, but didn't need it due to good weather ).

 

[geraldthehamster]

Why don't you think Visqueen will last? it's built for a hard life, is Visqueen.

 

[Nige F]

I thought the tarpaulin might be the least waterproof when it's horizontal.


It could be there for 2 months

It would be waterproof if it was vertical, reducing as the angle increases. So you're right.

 

[Ian H]

Tbh, I did make a really good job of the polythene cover.

You should quote me to fit mine!!!

Why don't you think Visqueen will last? it's built for a hard life, is Visqueen.

I use it at work to dig out onto but wasn't sure if sunlight (not that we get much) might cause it to crack on the folds. It's a bit light weight as well so I was thinking wind could lift and tear it.

 

[Ian H]

So I blagged a bit in my first post, I just fitted the joists and floor today.

I'm praying for a dry night so I can get it sheeted in the morning. I'm going to Visqueen it and drape a tarp over the top to make use of the eyelets.

Coule of picks for you all to laugh at, yes I do do everything backwards :

 

[Alastairreid]

No wallplate?

 

[Ian H]

Not yet, it's a Dutch end so I need to go another 3 blocks up.

 

[Tigercubrider]

if you were nailing that down when it was that dark, your neighbours must really love you!