hairline

In human anatomy, the forehead is an area of the head bounded by three features, two of the skull and one of the scalp. The top of the forehead is marked by the hairline, the edge of the area where hair on the scalp grows. The bottom of the forehead is marked by the supraorbital ridge, the bone feature of the skull above the eyes. The two sides of the forehead are marked by the temporal ridge, a bone feature that links the supraorbital ridge to the coronal suture line and beyond. However, the eyebrows do not form part of the forehead.
In Terminologia Anatomica, sinciput is given as the Latin equivalent to "forehead". (Etymology of sinciput: from semi- "half" + caput "head".)

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  1. N

    Is this true? - hairline crack in one of the newly placed floor tiles

    We recently had an en suite fitted by a local company that appears to be generally reputable. We've had a few issues with the work, one of which was that we noticed a hairline crack in one of the newly placed floor tiles. The company sent someone out to replace the tile and although I didn't...
  2. AvengerUK

    Hairline cracks - large tiles - relatively recently renovated bathroom

    Hello all, We've had our bathroom done approx. a year ago now - using large white gloss tiles with a border tile in the middle. From what I recall - the wall was taken back to brick (its an outside facing wall) and re-done. Two of the large tiles - top most one touching the corner of the...
  3. D

    I have some Riva ceramic subway tile that has hairline cracks running down my walls

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  4. D

    Self Levelling Compound Has Hairline Cracks After Walking Over It. 20mm Insulation Boards Underneath - Too Much Flex?

    Hi everyone, Hope to get some help and advice please. I have laid down 8mm of self levelling compound on a concrete floor after priming it so it was a good level to work off (I also included an 8mm expansion joint around the perimeter) (Conservatory is 15 years old and area of 14 m2). I then...
  5. P

    Water UFH Hairline cracks on multiple tiles in a small kitchen floor with ufh

    Hi everyone.....im new to the forum and I'm looking for some help and advice please. I tiled a small (14 sq meter) kitchen floor with UFH (water pipe type and approx 75mm below concrete surface) approx 1 year ago. Perimeter is allowed to expand, quality flexible self levelling compound and...
  6. D

    hairline crack, slight flex in 2 tiles - to foam or not to foam?

    In short: would using some expanding foam behind 2 tiles that have a small amount of flex, where I presume adhesive has partially de-bonded help fill the void and re-glue the to tile to breeze block? Or inject some kind of adhesive/silicone to where i can get to with grout removal? The long...
  7. T

    Hairline crack in grout!!

    Hi, I don't know if I'm been a little over the top here but I have a very small haircrack within my grout which is located on the wall in Bath/shower area!! See picture! The Area was only tiled/grouted about 2 months ago. The substrate is tanked plasterboard. They used powered adhesive (don't...
  8. S

    Grout Fine hairline cracks in grout - advice please

    Hiya, Just looking for a bit of advice. We had the area around our bath retiled 6 months ago and have recently noticed some hairline cracks in the grout. Haven’t found any images online with similar cracks. It’s only on a few tiles but naturally I am worried that there is an issue with the...
  9. D

    Should I be concerned about the hairline fractures in my tile?

    Hello all. I removed an old shower rail recently and placed a new one on. A couple of days after removing the old rawplugs I noticed some hairline fractures stemming from the holes which hosted the rawplugs. I obviously sealed the holes up with silicone sealant immediately after removing the...
  10. K

    Hairline cracks in terracotta tiles that is seeping some sort of dark brown oil

    Guy, I am not involved in this business at all, so I would appreciate any help or advice pls. I have noticed very recently that hairline cracks in my kitchen floor have started to seep a dark brown, sticky oil. There has been no spillages, so it is a complete mystery. The tile isn't lifting -...
  11. H

    Hairline cracks in tiles

    I would just like to see if anyone could give me any advice on why this may be happening with tiles I installed a year ago I installed a bathroom with ceramic tiles which the customer decided on. I have had a nightmare with them as people ever since on the most annoying little things which I've...
  12. S

    Hairline crack repair advice

    Hi All, We have just discovered a hairline crack in one of our 6mm italian porcelain tiles. Its in quite a high traffic area and i would like to try and repair it. Im more concerned with reducing the chances that the tile gets worst and starts to move. Im less concerned with the appearance...
  13. T

    Encaustic tile sealing and hairline cracking

    Hi, Looking for advice please. 2 problems! We have just had encaustic tiles laid in our bathroom including wetroom style walk in shower. They were laid over a new floor (extended bathroom) which then had a layer of hardiebacker cement board on top screwed down all over it. The tiles have been...
  14. J

    Who’s at fault for this hairline cracking?

    A recent flooring customer of mine had a big new build done, My company done all flooring at the house except any tiling on this job. A tiler done all walls and floors in this bathroom. Customers asked me to go there today and uplift a tile for her as the tiler isn’t playing ball atm and...
  15. A

    Marble Floor Tiles - Hairline Cracks

    Hi All, Is probably not the problem I would like to talk about but looks like me and my dad mess something up with my bathroom flooring … Floor was put down about 3 weeks ago and yesterday I noticed some tiles do have cracks. Tiles are cappuccino marble and subfloor is wood boards 15mm on...
  16. H

    Water UFH Hairline cracks on a new floor

    So I've returned to a job today to put some tiled skirts on and I see hairline cracks on the floor! Only in grout lines. 30m2 floor 600x600 porcelain tiles double buttered with tile master rapid setaflex onto dura Matt and using grout 3000. Floor was Alfa hemi hydrate that's been moisture tested...
  17. N

    Hairline Fracture in Wall Tiles - What could be the cause?

    Hi lads, Just been back to a wet room job i done over a year ago and two of the wall tiles (opposite wall to the shower) going into the corner have slight crack lines on them, you can see them but can't feel any lipage, (i used webber low dust rsf) I will replace them no problem...
  18. G

    Hairline Cracks In Marble At Studs

    Hi Guys, Anyone come accross this before? 4 inch stud wall 5m long x 2.8m high clad in 12mm hardibacker. Fixed 600 x 400 arrabascato italian marble tiles with Bal single part flexible slow set. lmm grout joints but left adequate expansion on the hardi and the tiles. 3 months no problem. Now a...
  19. judge

    Hairline Cracks In B N Q Ceramics

    Tiled the walls of a bathroom last week with 60 x 30 white ceramics from b n q.I removed all skim to reveal rendered walls which needed a bit of scratch coat the day before I started tiling.(weber rapid set used) I used weber slow set to fix the tiles and walls have had three days to dry.only...
  20. R

    Hairline cracks

    Saw a customer today who had called me in to look at some cracked tiles, I was expecting the worse, but the cracks were very fine and bizarrely the tiles we not loose at all. She doesn't want themn ripped up as has no replacements and doesn't want the hassle, she enquired as to whether you can...
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