I'm not sure if my question is right starting off at the supposed solution -
but here goes:

I've been told that Jablite can be obtained with an integral wood (ply/chip?)
sheet on one surface and that would be just the answer to bring a concrete
floor up to the level of an adjoining suspended wooden floor. A floating T&G
solid wood finish is to be put on top of and across both surfaces so they do
both need to be at the same level. The concrete floor is 40mm below the level
of the adjoining wooden floor.

Have I been advised correctly? Would the proposed solution work? Is Jablite
(inc sheet surface) available in 40mm thicknesses? How much is it likely to
cost for 3m x 3m? If Jablite isn't available with an integral wood sheet would
it be OK to float a T&G floor on top of the Jablite & if so would it need a
layer of foam like the rest of the room? Are there alternatives to Jablite?

NB Yes I've Googled but the references that I can find appear to be all for
trade users and assume that the would-be purchasers already know what Jablite
is!

--
John Cartmell john@ followed by finnybank.com 0845 006 8822
Qercus magazine FAX +44 (0)8700-519-527 www.finnybank.com
Qercus - the best guide to RISC OS computing

John Cartmell wrote:
I'm not sure if my question is right starting off at the supposed solutio=
n -
but here goes:

I've been told that Jablite can be obtained with an integral wood (ply/ch=
ip?)
sheet on one surface and that would be just the answer to bring a concrete
floor up to the level of an adjoining suspended wooden floor. A floating =
T&G
solid wood finish is to be put on top of and across both surfaces so they=
do
both need to be at the same level. The concrete floor is 40mm below the l=
evel
of the adjoining wooden floor.

Have I been advised correctly? Would the proposed solution work? Is Jabli=
te
(inc sheet surface) available in 40mm thicknesses? How much is it likely =
to
cost for 3m x 3m? If Jablite isn't available with an integral wood sheet =
would
it be OK to float a T&G floor on top of the Jablite & if so would it need=
a
layer of foam like the rest of the room? Are there alternatives to Jablit=
e?

NB Yes I've Googled but the references that I can find appear to be all f=
or
trade users and assume that the would-be purchasers already know what Jab=
lite
is!

--
John Cartmell john@ followed by finnybank.com 0845 006 8822
Qercus magazine FAX +44 (0)8700-519-527 www.finnybank.com
Qercus - the best guide to RISC OS computing


Jablite is a trade name, and the same product is available from
Celotex, Kingspan an Styrofoam. (try adding .co.uk for their websites)

I would not make a floating floor as proposed as there is little weight
to secure it. Screw some battens to the floor, add insulation and then
fix proper T&G chipboard or softwood floorboards to the battens.

An 8 x 4 sheet is between =A360 and =A380 - without the ply backing

dg

In article .com, dg
wrote:

John Cartmell wrote:
I'm not sure if my question is right starting off at the supposed
solution - but here goes:

I've been told that Jablite can be obtained with an integral wood
(ply/chip?) sheet on one surface and that would be just the answer to
bring a concrete floor up to the level of an adjoining suspended wooden
floor. A floating T&G solid wood finish is to be put on top of and across
both surfaces so they do both need to be at the same level. The concrete
floor is 40mm below the level of the adjoining wooden floor.

Have I been advised correctly? Would the proposed solution work? Is
Jablite (inc sheet surface) available in 40mm thicknesses? How much is it
likely to cost for 3m x 3m? If Jablite isn't available with an integral
wood sheet would it be OK to float a T&G floor on top of the Jablite & if
so would it need a layer of foam like the rest of the room? Are there
alternatives to Jablite?

NB Yes I've Googled but the references that I can find appear to be all
for trade users and assume that the would-be purchasers already know what
Jablite is!

Jablite is a trade name, and the same product is available from Celotex,
Kingspan an Styrofoam. (try adding .co.uk for their websites)

Thanks for that.

I would not make a floating floor as proposed as there is little weight to
secure it. Screw some battens to the floor, add insulation and then fix
proper T&G chipboard or softwood floorboards to the battens.

I'm not sure I explained it correctly. I need (something) to bring the height
of the concreted area up to the height of the adjoining suspended wood floor.
That's adding 40mm to the concreted area.

Then I'm putting a floating floor across the whole lot.
The new flooring will be laid like a laminate floor (except it's composed of
solid wood planks).

The bit I'm unsure about is the (something) to go on top of the concreted area
(and below the new wood planks),

An 8 x 4 sheet is between £60 and £80 - without the ply backing

Thanks. Not cheap!

--
John Cartmell john@ followed by finnybank.com 0845 006 8822
Qercus magazine FAX +44 (0)8700-519-527 www.finnybank.com
Qercus - the best guide to RISC OS computing

On 12 Aug 2005 11:16:20 -0700, "dg" wrote:


John Cartmell wrote:
I'm not sure if my question is right starting off at the supposed solution -
but here goes:

I've been told that Jablite can be obtained with an integral wood (ply/chip?)
sheet on one surface and that would be just the answer to bring a concrete
floor up to the level of an adjoining suspended wooden floor. A floating T&G
solid wood finish is to be put on top of and across both surfaces so they do
both need to be at the same level. The concrete floor is 40mm below the level
of the adjoining wooden floor.

Have I been advised correctly? Would the proposed solution work? Is Jablite
(inc sheet surface) available in 40mm thicknesses? How much is it likely to
cost for 3m x 3m? If Jablite isn't available with an integral wood sheet would
it be OK to float a T&G floor on top of the Jablite & if so would it need a
layer of foam like the rest of the room? Are there alternatives to Jablite?

NB Yes I've Googled but the references that I can find appear to be all for
trade users and assume that the would-be purchasers already know what Jablite
is!

--
John Cartmell john@ followed by finnybank.com 0845 006 8822
Qercus magazine FAX +44 (0)8700-519-527 www.finnybank.com
Qercus - the best guide to RISC OS computing


Jablite is a trade name, and the same product is available from
Celotex, Kingspan an Styrofoam. (try adding .co.uk for their websites)

I would not make a floating floor as proposed as there is little weight
to secure it. Screw some battens to the floor, add insulation and then
fix proper T&G chipboard or softwood floorboards to the battens.

An 8 x 4 sheet is between £60 and £80 - without the ply backing

dg

THATS WAY TOO MUCH TO PAY.

Jaberlite is polystyerine, kingspane / celotex have twice the
insulation value, getting a small number of 40mm sheets may take some
doing, the odd sizes are normally only sold in packs.

Rick

John Cartmell wrote:

NB Yes I've Googled but the references that I can find appear to be all for
trade users and assume that the would-be purchasers already know what Jablite
is!

Standard jablite is just expanded polystyrene sheets. You can expect to
pay 8 to 10 quid a sheet for the 50mm thick panels at a builders
merchant (I have not bought thinner sheets - but expect they would cost
proportionately less). It is more usually set in a floor and then
screeded over.

PIR foam (celotex et al) gives better insulation and is also denser and
hence may be better in this application. A 25mm thick sheet ought to
cost no more than 8 quid if you shop around. You could then top that
with 12.5mm WBP shuttering ply to give you close to your finished level.
(you may need a sheet of hardboard in there to get the exact match in
level)

--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/

In article ,
John Cartmell wrote:
I'm not sure I explained it correctly. I need (something) to bring the
height of the concreted area up to the height of the adjoining suspended
wood floor. That's adding 40mm to the concreted area.

Then I'm putting a floating floor across the whole lot. The new flooring
will be laid like a laminate floor (except it's composed of solid wood
planks).

The bit I'm unsure about is the (something) to go on top of the
concreted area (and below the new wood planks),

This is roughly how the ground floor of a pal's 20 year old house is
constructed. Concrete base then about 40mm polystyrene then chipboard
flooring. Dunno if the polystyrene is of a special type or grade, though.

--
*The most wasted day of all is one in which we have not laughed.*

Dave Plowman London SW
To e-mail, change noise into sound.

In article , John Rumm
wrote:
John Cartmell wrote:

NB Yes I've Googled but the references that I can find appear to be all
for trade users and assume that the would-be purchasers already know what
Jablite is!

Standard jablite is just expanded polystyrene sheets. You can expect to
pay 8 to 10 quid a sheet for the 50mm thick panels at a builders merchant
(I have not bought thinner sheets - but expect they would cost
proportionately less). It is more usually set in a floor and then screeded
over.

PIR foam (celotex et al) gives better insulation and is also denser and
hence may be better in this application. A 25mm thick sheet ought to cost
no more than 8 quid if you shop around. You could then top that with 12.5mm
WBP shuttering ply to give you close to your finished level. (you may need
a sheet of hardboard in there to get the exact match in level)

Many thanks for that.

--
John Cartmell john@ followed by finnybank.com 0845 006 8822
Qercus magazine FAX +44 (0)8700-519-527 www.finnybank.com
Qercus - the best guide to RISC OS computing