ceiling

A ceiling is an overhead interior surface that covers the upper limits of a room. It is not generally considered a structural element, but a finished surface concealing the underside of the roof structure or the floor of a story above. Ceilings can be decorated to taste, and there are many fine examples of frescoes and artwork on ceilings especially in religious buildings. A ceiling can also be the upper limit of a tunnel.
The most common type of ceiling is the dropped ceiling, which is suspended from structural elements above. Panels of drywall are fastened either directly to the ceiling joists or to a few layers of moisture-proof plywood which are then attached to the joists. Pipework or ducts can be run in the gap above the ceiling, and insulation and fireproofing material can be placed here. Alternatively, ceilings may be spray painted instead, leaving the pipework and ducts exposed but painted, and using spray foam.
A subset of the dropped ceiling is the suspended ceiling, wherein a network of aluminum struts, as opposed to drywall, are attached to the joists, forming a series of rectangular spaces. Individual pieces of cardboard are then placed inside the bottom of those spaces so that the outer side of the cardboard, interspersed with aluminum rails, is seen as the ceiling from below. This makes it relatively easy to repair the pipes and insulation behind the ceiling, since all that is necessary is to lift off the cardboard, rather than digging through the drywall and then replacing it.
Other types of ceiling include the cathedral ceiling, the concave or barrel-shaped ceiling, the stretched ceiling and the coffered ceiling. Coving often links the ceiling to the surrounding walls. Ceilings can play a part in reducing fire hazard, and a system is available for rating the fire resistance of dropped ceilings.

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  1. Z

    Heatloss through internal ceiling

    Hello, i'm doing some heatloss calculations, going by a fairly old plumbing book. The formula for calculating heatloss would be Surface Area x Temp Diff x U-Value = Heatloss My question is, when calculating the heatloss through a ceiling, so downstairs to upstairs, the temp difference would be...
  2. fango7

    Leak under shower along wall and ceiling

    Hi all, I have a couple of leaks coming under shower tray downstairs. One is along the wall so think might be joint between wall and tray and the other seems to be near waste tray, there is a slight hairline crack in shower tray near waste . This happens when I leave the shower head near the...
  3. r1k1n

    Ceiling paint recommendation - black mould on wet room ceiling

    Hello there all, I care for my disabled mum and her wet room ceiling has developed small speckles of black mould. I plan to remove the black mould and then paint the ceiling voer with a decent anti-mould ceiling paint. Can anyone recommend a decent paint brand? I know of Ronseal and Zinsser but...
  4. B

    Leak in Ceiling - how much will it cost?

    There's a leak in the ceiling of my Dad's living room which is on the ground floor and has a bedroom directly above it. There's an in-ceiling speaker where water was dripping from, and there were slower drips coming from a...
  5. D

    Remove shower head rainfall from ceiling

    Hoping someone can help, not even a novice. In the bathroom there is a rainfall type shower head. I need to clean it. It is square and fitted into the ceiling and not sure how to remove. There is a 5mm gap from ceiling. Not tried unscrewing yet
  6. F

    Condensation on ceiling?

    Hello all, Have 3x windows and 2-300mm insulation in attic. I've noticed recently a wet patch on the ceiling near where the blocked vent is (I know.. I know..). The vent has been blocked forever but this is only comung up now. There was also some small condensation on the windows this morning...
  7. S

    Do you fit Elements XPS panels tight to floor and ceiling?

    When fitting waterproof XPS (Elements) boards in a shower recess, should they be cut tight to the floor and ceiling or should a gap left at one or both ends? If a gap is to be left, which end should it go and what do you put in the gap? TIA
  8. P

    Strange intermittent leak from kitchen ceiling

    Hi, I have a bit of a strange problem. A handful of times I've had a leak from the kitchen ceiling. This has always occurred when there has been a potential 'water pressure event'. The first two times happened exactly when there was a major leak down the road from us, the second couple of...
  9. D

    Leak ceiling ?what to do

    Hi. We have a leak somewhere as shown on the pfoto This is on the kitchen room. Directly above the space is our main bathroom, took the bath panel off don’t see any thing there. And nothing on site on toilet or sink Can anyone suggest the course of action to sort this before it gets worse and...
  10. S

    Gap between shower door top and ceiling?

    Hi, I am having to lift the shower tray off the floor and the ceiling height is approximately 2.3 m as per the standard for modern houses. With a fairly standard 2 m height door, this only leaves 170 mm gap between the top of the door and the ceiling and I wonder if this is sufficient for...
  11. A

    Cavity wall or ceiling cistern?

    I'm planning a wetroom in a very small space 1m x 2m (see attached). I want to maximise the space by having a cistern entirely in the stud wall including the waste . Two questions really 1. Is there a cavity wall cistern that fits completely inside a100mm cavity? 2. Is there such a thing as a...
  12. C

    PVC pipe replacement in ceiling

    This by now way a criticism of our local plumber, who I feel is being open and honest. After a total house drain cleaning he says there is a upstairs blockage in 3 inch pipes leading from two toilets - there’s also sinks, tub/showers in two bathrooms. He was unable to clear these blockages with...
  13. P

    Spots recently ceiling downstairs, Condensation??? New water heater.

    Plumbing/water heater- spots recently on ceiling downstairs, 2 story house. Condensation??? New water heater. Live in same house now for 20 years but could happen anywhere. Got a new water heater in September on 2nd floor in a tiny closet. In that closet is a metal aluminum vent and also a...
  14. J

    URGENT what shower exposed valve accepts surface mounted supplies dropped from ceiling, Cant find any on normal websites.

    shower valve that takes exposed supplies from ceiling
  15. H

    Unusual patterns on ceiling

    Hello I am trying to find out what has caused these small circular shapes on my guest toilet's ceiling. Is it water damage or from some cleaning or steaming that was done on the wall tiles? Thank you.
  16. D

    Dripping Rain Shower. Any advice?

    I have a ceiling fitted shower that keeps dripping and is driving me crazy. Can anyone offer any guidance to what’s causing the problem and how it can be fixed. Would the ceiling need to be damaged to get access to the pipe work? Many thanks.
  17. D

    URGENT Garage Wall Damp Patch

    Hi all, This is what the garage walls look like. Pictures were taken today. A couple of days ago the thick damp strip near the ceiling wasn't there, just the thin ones around the blocks, so it seems it is worsening. The external tap was removed a couple of weeks ago as it was badly leaking and...
  18. D

    Tiler mistake with shower - large gap between tiles and ceiling

    Hi all Having a bit of a mare; some of you may recall but after having my last shower installation botched (but thankfully getting my money back after threatening to make a court claim), I've had another botch job with fitter #2! (found him on trustatrader with decent reviews but I guess...
  19. P

    Water damaged ceiling

    Hi everyone I am a self employed plumber working in Scotland, around 2 months ago I had disconnected a water tank up a loft. When I was draining the tank through the standing drain pipe a bit of water spilled because of the previous plumber who converted the heating side had disconnected the...
  20. K

    URGENT Stupid mistake- waterfall from ceiling!

    Hi all! I made a stupid mistake and it caused water leaks all the way down from my bathroom to the kitchen ceiling and water leaked like waterfall!! Basically, I didn’t know there were small holes next to pipes which are behind both sink and toilet. I pour water to on the bathroom floor so I can...
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