Tim S wrote:
Phil L wibbled:


HMMmmmm.....
8 stopgap 300 @ £20 = 160

About 4 bags to get 3mm

sg 900 ? = about £15

About 10 bags, get level with this stage as far as possible.

f75 = £66

Actually looks more like 10kg needed so at least 130

p131 = £25
Scarifier = £70

Yep - with vacuum - but I can de-adhesive several other floors while
I have it.

Total = £336

Probably about right.

Nearer to 500 methinks

Don't forget to add on your other initial costs regarding this
floor, and don't forget that the DPM may or may not work, for any
length of time, and it's still uninsulated :-p

Skip = 80

I don't know where you live Phil, but round here it's more like 200
for an 8 yard.

£150 plus VAT here for an 8 yard, but how big is the floor? - I assume a 4
yd will easily do it

Need about 1 yard for the screed, 3-4 yards for the concrete and
assuming 75mm insularion, another 3 yards for the earth - definately
an 8 yarder.

a m3 of anything, be it concrete, earth or insulation will cover a 10m2 are
100mm deep...my guestimation of that room is about 12m2?

So if you take 200mm off, this will be about 3m3, then you add 100mm of
jablite polystyrene insulation, cover it with DPM, and order 1.5 cubes of
concrete to give a depth of 100mm - no screed required, no paint-on
chemicals and one man could easily do it in two days


concrete = 150
dpm = 15
insulation = 50

50mm Screed?

Less than £300, brand new floor, dry, warm, flat, solid and above
all, cheaper.


I'm really not sure about that. I can at least follow my regime single
handed if I have to, but digging out concrete + extra earth,
concreting and screeding and a good coat of SG 300 because the last
set of screed went down slightly bumpy sounds like a week's worth of
hired labour plus me.

I agree it would be better in an ideal world, but I do not believe it
can be done cheaper and it is a load more work. As I said, the
existing concrete is solid and most of the existing screed is well
attached.

All I care about now is getting the job done and I have faith that I
can get a perfectly good result this way with fairly little physical
effort.


Digging out concrete isn't as hard as people imagine - a 15lb sledgehammer
and a good pickaxe will have it in manageable sized lumps in a few hours,
plus a few more hours to barrow it to a skip, then a brisk rake over to get
the extra depth, and if you want to cut a few corners, you can use 75mm
insulation and 75mm of concrete, which is more than adequate, which means
less digging, less skip space, less concrete to buy, but as you appear to
have made your mind up, good luck, but I'll reiterate WRT the floor
scrabblers - they don't work

--
Phil L
RSRL Tipster Of The Year 2008