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membrane
A membrane is a selective barrier; it allows some things to pass through but stops others. Such things may be molecules, ions, or other small particles. Biological membranes include cell membranes (outer coverings of cells or organelles that allow passage of certain constituents); nuclear membranes, which cover a cell nucleus; and tissue membranes, such as mucosae and serosae. Synthetic membranes are made by humans for use in laboratories and industry (such as chemical plants).
This concept of a membrane has been known since the eighteenth century but was used little outside of the laboratory until the end of World War II. Drinking water supplies in Europe had been compromised by the war and membrane filters were used to test for water safety. However, due to the lack of reliability, slow operation, reduced selectivity and elevated costs, membranes were not widely exploited. The first use of membranes on a large scale was with micro-filtration and ultra-filtration technologies. Since the 1980s, these separation processes, along with electrodialysis, are employed in large plants and, today, several experienced companies serve the market.The degree of selectivity of a membrane depends on the membrane pore size. Depending on the pore size, they can be classified as microfiltration (MF), ultrafiltration (UF), nanofiltration (NF) and reverse osmosis (RO) membranes. Membranes can also be of various thickness, with homogeneous or heterogeneous structure. Membranes can be neutral or charged, and particle transport can be active or passive. The latter can be facilitated by pressure, concentration, chemical or electrical gradients of the membrane process. Membranes can be generally classified into synthetic membranes and biological membranes.
I have 2 rooms to tile with ceramic tiles 15 x 60 cm tiles. There is a sand and cement screed of about 90mm thick with ufh heating pipes set within. One room is approx 5x5 metres , the other joins this room and is a hall at 1.2 x 4 metres, there is an expansion joint between the 2.
Would this...
Here at Isomat we offer a wide selection of high quality tiling products at competitive prices.
Attached is a selection of brochures with some of the options available to you. For a full list of products along with the data sheets in pdf format please visit our web page www.isomat.co.uk.
If...
Suitable for uncoupling sound and problematic substrates. It allows subsequent coverings to function as independent layers in relation with the substrate. It can be placed on walls or floors in a variety of substrates such as concrete, cement mortars, old layers of tiles, mosaics, masonry etc...
Hi all,
I have to put up around 15 Sqm of Kerdi membrane on plasterboard walls. I would normally just use the the Kerdi coll for small area but was wondering if there was as good but cheaper alternative?
Thanks in advance for your time
Lex
started stripping up a 40 m floor today to find it was all on Ditra.
I found it odd as it was a concrete screed with water UFH in..
Is there a quick way to Remove the fleece backing
Thanks Ben
bcd-87
Thread
backing
can
ditra
membrane
ufh
uncoupling
uncoupling membrane
Where do you all source impey waterguard? have previously always used tile safe but have heard good things about water guard and like the fact that the overlaps are much thinner in height variation due to thickness.
hi just wondering if I should put some silicone or some type of sealer between the membrane and drain retainer ring thingy image attached any advice would be much appreciated
thank you
craig
Craig Hamilton
Thread
drain
former
membrane
shower
shower tray
tray
wetroom
I have 40m of Dural DuraBase CI Plus - Crack Isolation / Decoupling Membrane for sale, it's 1 x 30m and 1 x 10m and both are unopened.
Job has been canceled and do need need in the next 2 months so it's just going to be in the way!
£240ono collection from PE15 0 area (March, Cambridgeshire)
Exhausted all options in looking at this.
So. Plastered walls, primed, Weber set rapid, Homelux wall matting, more Weber set rapid, 300x100 Metro Matt White tiles
Just in the shower area, the tiles have very badly cracked (no the weren't crackled finish to start with :)).
I have aske the...
Tile Shop
Thread
adhesive
aus
crack
cracked
cracking
debonding
membrane
metros
rapid
set
silicone
tanking
tile
tiles
usa
I am a customer not a tiler!
My architect wants to lay limestone tiles directly on to the screed which is a sand and cement mix with the UFH pipes in it. This is laid on a solid concrete base. The screed has SBR and some fibres in it. My worry is that the limestone tiles with all their natural...
sdw45
Thread
anti-crack
aus
ditra
floor
limestone
matting
membrane
schluter
systems
ufh
uncoupling
usa
wet
wet ufh
Hi guys,
After a little advice (more of a conformation I'm on the right tracks!) regarding the homelux membrane.
Just picked up a 5m2 roll to apply to the walls down around an L shaped bath where the shower will be fitted and i plan on using the Mapei Mapeker rapid set flex for attaching the...
Hi guys, have not got round to tiling the bathroom and kitchen floor and was wondering how high the finished tile height will be once completed? Tiles are 9mm thick and I will be using the Schluter Ditra as recommended.
Jimmy
HardTarget
Thread
anti-crack
aus
ditra
floor
matting
membrane
schluter
systems
tile
uncoupling
usa
Hi All. I need a hand with pricing a job please.
A 130m2 of 300mm x 300mm porcelain tiles on a heated concrete floor in 4 different rooms. That isn't a problem pricing wise,but I could do with a hand pricing,laying 130m2 of uncoupling membrane and 80 linear metres of skirting tiles.(labour...
On one
Thread
aus
fitting
membrane
skirting
tile
tiles
uncoupling
uncoupling membrane
usa
Hi All
Just been and had a look at a 55m2 multi room floor job,with the Entrance floor,the utility floor and an orangery floor all running off from the kitchen floor.
Now normally I would put colour matching expansion strips under the doorways off the kitchen. But unfortunately some of these...
Simple really just wondering what people's preferences are and why? Mine is the mapei tanking kit, used it for years without any issues.. I'm interested to know what other people prefer :)
DURAL decoupling mat DURABASE CI++
The quick multi-purpose decoupling mat with shear-stop action
Particularly safe, extremely fast, noticeable cost saving
Construction optimized 3-layer structure
Stress alleviating and crack-bridging
Improves footfall sound insulation
Saves time and money...
Hi all.
We are having a tiling job done with dural matting over plywood.
We were supplied with the adhesive in picture attached.
Is this considered unmodified thinset? Is this OK to use both under and over the matting?
-Please see post 4 for image.
Anna79
Thread
adhesive
advice
aus
decoupling
decoupling membranemembrane
tile adhesive
usa
Is it necessary to lay a membrane/matting prior to laying stone tiles over water UFH and what are the benefits from such a practice. Many thanks for your advice!
What's wrong with this following system that I can't help considering?
- I'm starting with recently laid solid and level 18mm wbp over suspended timber floor joists which comprises a bathroom floor. This ply replaced floor boards in bad condition. Area about 4 sq m
- A shower tray former if...
johnplum
Thread
aus
floor
floor tiling
liquid
membrane
ply
tank
tanking
tile
tile backerboard
usa
waterproofing
wetroom
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