- Thread starter Screwdriver
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Screwdriver
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Thanks all. My neighbour is happy with it too. So much so he wants to keep it for now, get the glass roof done some time in the future. So I need to waterproof this rear deck, the hatch and the side area.
I'm thinking EPDM. So long as I can get the water to run off outside of the basement concrete, I dont need to worry about drainage. Doesn't need to be particularly robust, it's not a high traffic area but I might want something on top on the side path which does get a fair bit of use.
Bodge is too strong a word but it doesn't need to last more than a year or so, so I am most interested in getting something on there quickly. Ideally something I can re use when I get to rip it all off later....
What are my options?
I'm thinking EPDM. So long as I can get the water to run off outside of the basement concrete, I dont need to worry about drainage. Doesn't need to be particularly robust, it's not a high traffic area but I might want something on top on the side path which does get a fair bit of use.
Bodge is too strong a word but it doesn't need to last more than a year or so, so I am most interested in getting something on there quickly. Ideally something I can re use when I get to rip it all off later....
What are my options?
rtbcomp
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Move.
gaz1
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i suspect they will want to keep it as a feature therefore it wants sinking and sloping towards the front then sealed this way then ontop of that create exterior decking on top of this for the same effect
dont think it will not be over used i suspect it will be and when it starts leaking you might have some fun then
dont think it will not be over used i suspect it will be and when it starts leaking you might have some fun then
Screwdriver
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Yep, you're bang on. He had been talking about decking it over any waterproofing. I talked him out of it by reminding him I hadn't built a roof and if I had, it wouldn't be like this. My main concern would be the additional loading of 25sq metres of decking. It should be ok if I put in a couple more acrow props under it but I still have to sort out the issue of fall/runoff.
I don't mind undoing work I have been paid to do so that he can pay me to do more work but I find that sort of thing a bit wasteful even if he doesn't mind either.
gaz1
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builders back on the job from earlier posts
screwdriver all youve done is make safe what wasnt and thats your quoted price so stick with it
make sure you confirm in writing that the roof structure is not a permanent fixture and shouldnt be walked upon never mind used for a party at the property
which i know full well they will do
also make sure they are fully aware it isnt fully water proof and any walking upon it will cause the fixture to fail and therefore leak water into the property this is where you leave it
unless they are wanting it fully water proofed and then you need to drop all the wood at front end slopping it towards the front via a new price this time fully water proofing it and then make it into a walk way area but i think you will need a few steel beams in to spread the weight one at back some run towards the front
your forgetting 25m + how many people will also but stood on top of it as well for say a party
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Screwdriver
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I think he has one in mind but they are currently busy. The work I have done so far is not the sort of thing you'd want to pay a builder for (though I made sure someone else did the shoring up for the clay wall). I've just been clearing the site and making the cover safe. Unfortunately its so "safe" he now wants to keep it as a temporary roof.
All I am doing is a stop gap until he is ready to have the glass floor installed. I imagine that is going to be massively disruptive and cost a TON of money. The area is enormous. Plus the stairwell under the house will still have to be dug out. I imagine there must be a good reason why he doesn't want to do all the work right now but he's a friend and neighbour; I haven't asked and if he wanted me to know, he would have told me.
I don't quite understand why but a lot of folk would like to suggest there is something nefarious or corrupt/dodgy. I don't think there is. He's a really nice chap as it happens. I'm doing them a favour I guess and I have to assume its going well or they wouldn't have invited me over for Christmas...
Screwdriver
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Yeah I've met them and we even discussed the structural integrity of the rear cover. He suggested a couple more acrow props would make it perfectly secure. There are already three acro props and I have extended the edges to rest on the solid concrete walls. You could park a car on it but I have discussed this with the owner.
Think I might just hit it with everything I've got; give him a quote for EPDM, additional acrow reinforcement and a lightweight decking.
MattF
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Wasn't thinking owt along those lines. It's just what you were saying his plans are made it sound like he may have his priorities in a weird order.
angellonewolf
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i sojest he said what he needs doing eg i want 3 acrow props there there and there as structral wize that way he the one thats sorted out whats needed
what about damp proof membrain
https://www.toolstation.com/shop/Co...mp+Proofing/sd2787/Damp+Proof+Membrane/p21675
cheap just lay it down with planks across the top will hold in place little work so not much of a money maker
if need be make the damp membrain wider so you can make a runaway away from the property
Screwdriver
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Yep. It does take the responsibility away from me which is why it would be a good idea to do it. Wher do I buy acrow props?
I'll have a look at the DPM above thanks.
Screwdriver
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Ok. Just a big sheet of polythene. With EPDM I could just screw down straight through it and it would seal acceptably, not the same deal with poly sheet tho its a damned shame to drill through EPDM....
angellonewolf
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local facebook gumtree ebay ? local builder ?
yes polythene epdm at that size would cost a bit £300(this is a guess from photo) i dont do roofing but did have a look when doing my back roof so got a few prices off the internet
dont think edpm will like screws drilled through it will not make it water tight from looking online when any joints they need 100 mm overlap and special glue to make it watertight
angellonewolf
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why not polythene cover with scafold boards and screw decking to the scafold boards the weight will hold it ?
angellonewolf
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the only problem is most plastic will not like being in the sun for a long time unless uv resistance
Screwdriver
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I'm looking at interlocking composite wood decking tiles....
I'm assuming I can just lay them over EPDM. I get the impression a few hundred quid more than the cheapest option is not going to be a problem so long as its a working solution.
I'm assuming I can just lay them over EPDM. I get the impression a few hundred quid more than the cheapest option is not going to be a problem so long as its a working solution.
angellonewolf
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im looking at the plastic decking at the otherhalfs mum and dads at the moment he wants it done but never wants it done i said about the plastic even i needed to sit down at the price over the wood 
3times the price
3times the price
Screwdriver
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This is what I have decided to do. Cheap and cheerful temporary fix. I toyed with EPDM but it's getting ripped up early next year so...
Is it worth going for the 500mu thicker plastic or is that 300mu stuff near as dammit just as good?
