Home -> Forums

Hair line cracks in the ceiling on new 6 month old house

Fri Jul 06, 2012Total posts : 7
sanjeev kumar
sanjeev kumar
Join date: Jul 2012
Topic: Hair line cracks in the ceiling on new 6 month old house

Hi,

I constructed a house in which the RCC lintel(roof) was done in Jan 2012.

I am observing hairline crack in each room across the half centre of the roof.

The size of one room is 10x10 feet, other is 12x10 and 5x10 feet. The thickness of the lintel is 7 inch. After the lintel was done, I got the roof convered with plastic after 4 months to prevent water to get in contact with the roof.  On the plastice I put mud with 8 inch thickness to act as heat insulater. I covered the m ud with tile bricks of 1.5 inch thickness and closed the voids with a cement and rough aggerate mix.

It this due to tempeature variation or is it due the the load above. What should I do immediately and what is the cause because I have never observed anywhere else. Should I remove the bricks and mud above the roof to reduce the load on the ceiling. Shoud I also remove the plastic below the mud to let the roof breathe. Is the polythene harming in any way/causing the crack in the house. The house is in Delhi and all the perifery of the room roof has 9X12 inch beams.

Please reply, I will be very grateful.

 

 

 

Will the cracks spread all over the roof as now it is only in the centre.

 

 

 

 

 

Fri Jul 06, 2012Post  #1
sanjeev kumar
sanjeev kumar

Join date: Jul 2012
Post subject: Hair line cracks in the ceiling on new 6 month o...

 

I can only see the crack in ceiling from below and do not know if it is on the floor of the roof as the roof is covered with polythene, wood and 1.5 inch thick bricks. Also, 10 mm rods were used across the lenght and width with 6'' spacing.

 
Fri Jul 06, 2012Post  #2
ravi seth
ravi seth

Join date: Mar 2008
Post subject: Hair line cracks in the ceiling

You must have put plastic conduits in the roof for electric wiring which must be going to the center where fan hook is.These cracks occur mostly at the bottom of the conduit when plastic conduit is not covered with wire mesh to improve its biding with concrete.Since these cracks are only limited to the bottom of plastic conduit it is not a worrisome issue but it does creates panic.Just next time when you repaint the house get these cracks filled with cement putty.

If you want to have a permanent solution , then  get scratched the underside roof where the cracks appear till the bottom of that conduit  say 2" -3" wide and depth till  the bottom of conduit is., put a strip of chicken wire mesh and repair the same with cement putty and paint.Remember to use 1:6 cement : sand mix than a rich mix, otherwise you may get cracks again.... which then won't be due to plastic conduit but hair line cracks due to different expansion coefficient  of a rich mix than used in the concrete above.
 
Mon Jul 09, 2012Post  #3
S L Gupta (Civil Engg)
S L Gupta (Civil Engg)

Join date: Mar 2008

Dear Sanjeev

         I agree with Sh Ravi seth that this crack is under the plastic pipe laid for electricity wires.The other cause may be  that use excessive fine sand cause cracks in the RCC, it may due to not giving proper cover under cement concrete. As you stated the thickness of slab is 7'' than your RCC may be under reinforcemet etc. Please watch the crack for some time and if it not widened than it is OK and repair it as suggested by Sh Ravi Seth or visit the website gharexpert construction section       here the article about cracks and their remedy is given.

 
Fri Jul 20, 2012Post  #4
sam_m400
sam_m400

Join date: Jul 2012
Sir

 What is this wire mesh you are talking about? I have seen construction where electrical guy passes these conduits under the rods without any covering passing it to different rooms.

what precaution we should take asking the electrician while doing the conduit where barbenders are laying the rods across for the roof?

Regards
Sam
 
Sat Jul 21, 2012Post  #5
S L Gupta (Civil Engg)
S L Gupta (Civil Engg)

Join date: Mar 2008

Dear Sam

     Do not place the conduits under the MS steel bars. First complete the bar binding and than on the bars lay conduit.In this process you have not cracks stated by sh Sanjeev and there is no fear of breakage in the pipe during laying of salb by walking of labor.

 
Sat Jul 21, 2012Post  #6
sam_m400
sam_m400

Join date: Jul 2012
Sir

In the mail he states "These cracks occur mostly at the bottom of the conduit when plastic conduit is not covered with wire mesh to improve its biding with concrete" . What does it means?

 Your recommendation is that  Do not place the conduits under the MS steel bars, so do we need to put conduit parallel to Stell bars or above it ? 

do we need to tie the conduit along with the steel bars?

If it is above then there is chance that they will broken when somebody stamps while laying the concrete , but toeing along in parallel is good as it won't  broken. which is best option?

Regards
Sam

 
Mon Jul 23, 2012Post  #7
S L Gupta (Civil Engg)
S L Gupta (Civil Engg)

Join date: Mar 2008

Dear Sam

If you put conduit under steel than the chances of breakage are more. lay conduit on the ms steel bars and tie them with steel bars.

 

Questions (39)

2061
views
1
answers

Name to chemical that helps new plaster to bind with the wall after removing the old plaster which has cracked due to earthquake

Last answer on 11/8/2011 11:00:36 AM. by S L Gupta (Civil Engg). Forum started by timm todd
1872
views
4
answers

constraction details

Last answer on 7/19/2012 11:23:50 AM. by S L Gupta (Civil Engg). Forum started by ranvir kumar singh
981
views
2
answers

i have constructed a new house. in all bed rooms where all pipes are laid in roo

Last answer on 7/23/2014 12:29:59 PM. by jitendra. Forum started by jitendra
1326
views
2
answers

CRACK IN CENTRE OF SLAB

Last answer on 2/12/2015 9:00:41 PM. by JAI PRAKASH. Forum started by ANISH
1437
views
1
answers

New Home

Last answer on 7/26/2013 4:14:40 PM. by S L Gupta (Civil Engg). Forum started by neelkanth purohit
1157
views
0
answers

can start a new building in adi month ?

Last answer on 7/15/2011 6:24:32 AM. Forum started by senthilvel
2419
views
2
answers

sunmica

Last answer on 12/6/2012 10:52:25 PM. by shailesh kumar singh. Forum started by tanaji
1318
views
1
answers

Cracks in my new house

Last answer on 7/3/2013 12:47:10 PM. by S L Gupta (Civil Engg). Forum started by houseowner
1784
views
1
answers

How to fix cracks in my home

Last answer on 7/3/2012 12:04:18 AM. by Swati Satija. Forum started by vivek
2604
views
4
answers

How to avoid crack in the new construction

Last answer on 5/9/2010 4:02:07 PM. by bhattkalpit. Forum started by vrnavukarasu
2285
views
2
answers

Cracks developed in corner of walls

Last answer on 2/28/2010 8:57:09 PM. by Ajit Tareeka. Forum started by Munjal Shah
6765
views
3
answers

how can i make new rcc roof slab without breaking old slab

Last answer on 4/23/2014 8:31:12 PM. by shaik khaja nayab rasool. Forum started by rishi
2176
views
1
answers

paint

Last answer on 1/2/2020 11:48:51 PM. by Abhishek Garg (Builder & Engineer). Forum started by chethan
622
views
1
answers

Crack in pop ceiling

Last answer on 10/20/2016 12:33:55 PM. by S L Gupta (Civil Engg). Forum started by Rizwan
620
views
1
answers

Today has just finised 15 days after intering in my new flat i recently come out

Last answer on 10/20/2016 12:10:03 PM. by S L Gupta (Civil Engg). Forum started by Rizwan
2459
views
1
answers

Reusing material of old demolished house to construct a new house

Last answer on 5/1/2012 11:09:41 AM. by S L Gupta (Civil Engg). Forum started by pankaj sharma
3434
views
3
answers

Prevention of Cracks in Gypsum board false ceiling

Last answer on 12/31/2013 12:12:28 PM. by S L Gupta (Civil Engg). Forum started by Dhananjay
1754
views
1
answers

Using old bricks for construction

Last answer on 11/3/2011 11:02:20 PM. by susandixon. Forum started by Col MP Singh
1956
views
1
answers

Improvisation of Housing Board House

Last answer on 8/17/2012 12:16:55 PM. by Gunjan Utraja. Forum started by MUKESH MISHRA
2822
views
14
answers

software

Last answer on 4/9/2020 6:08:28 AM. by empitech. Forum started by chethan
4586
views
7
answers

Kitchen in North East

Last answer on 4/9/2020 4:08:55 AM. by ivaanadam. Forum started by Murugan Kalimuthu
1718
views
2
answers

Exterior Paint

Last answer on 4/8/2020 11:55:00 PM. by leelindsey. Forum started by arindam kar
2446
views
12
answers

Modern Kitchen

Last answer on 4/8/2020 11:49:06 PM. by leelindsey. Forum started by ankita
1882
views
4
answers

Lawn Care Tips

Last answer on 4/8/2020 5:55:47 PM. by Alfred. Forum started by abhishek pal
1300
views
4
answers

Please tell me 15*46 right 2bhk house plan

Last answer on 4/8/2020 11:13:46 AM. by SuzannaMcIntosh. Forum started by Roshan mallya
1555
views
11
answers

kitchen door

Last answer on 4/8/2020 9:17:07 AM. by brokertomeblog. Forum started by pinky
2077
views
4
answers

Door direction

Last answer on 4/8/2020 3:46:39 AM. by ivaanadam. Forum started by Rohit Patel
1354
views
3
answers

Bathroom Ventilation System

Last answer on 4/8/2020 2:49:22 AM. by leelindsey. Forum started by Partha Sarkar
4702
views
10
answers

Modular Kitchen

Last answer on 4/8/2020 2:36:08 AM. by leelindsey. Forum started by Veena Gil
1249
views
5
answers

Suggestions, Comments Reqstd on my house plan attached

Last answer on 4/8/2020 12:39:15 AM. by ElmerWalter. Forum started by PR Jawahar
219
views
2
answers

Interior designers

Last answer on 4/7/2020 11:56:45 PM. by saradhashety. Forum started by shreeragamap
2362
views
2
answers

I want to built a house with stilt,ground floor

Last answer on 4/7/2020 10:38:19 PM. by MayMooney. Forum started by venkatesha
1685
views
1
answers

need interior designer..

Last answer on 4/7/2020 9:56:34 PM. by charlly. Forum started by sunny
4542
views
3
answers

How do i calcuated how much steel is required for Roof/lintel/beam/pillar/plinth

Last answer on 4/7/2020 2:08:58 PM. by Josh. Forum started by sam_m400
2139
views
2
answers

Living Room Recliners

Last answer on 4/7/2020 8:23:05 AM. by maryann. Forum started by RAJESH CHAMRIA
2265
views
7
answers

Kitchen Vaasthu

Last answer on 4/7/2020 4:06:48 AM. by ivaanadam. Forum started by Jyothi
3165
views
25
answers

The flooring of my home is marble and i would like to insert brass patti in the

Last answer on 4/6/2020 12:13:47 PM. by baby. Forum started by mohit
1316
views
2
answers

Pillar cost

Last answer on 4/6/2020 10:05:12 AM. by esssaytigers. Forum started by P Saravanaraj Pandian
971
views
3
answers

can I built a small balcony for drying clothes @ N-W (Vayu Moolay)

Last answer on 4/6/2020 10:03:20 AM. by esssaytigers. Forum started by vijay




Articles that might interest you!
Which Are Various Reasons of Cracks in Buildings?
Cracks can happen due to foundation movements and settlements of building, thermal movements, chemical reactions, elas..
Layout of Building
The real meaning and purpose of setting out (layout) is to transfer the plan, length and width of its foundation on th..
How
How To Repair Cracks
You can repair cracks which damage plaster surfaces, ceilings and the whole structure. To ensure safety of the buildin..
Surface
Surface Preparation and Painting Tips
Whether you are going to paint a newly constructed wall or old one, These surface preparation tips will help you in ge..
How
How to Paint Old Furniture
Articles of furniture in your house can impress guests and visitors if they are well painted and give a nice look. A s..
General
General Guidelines While Designing Water Supply Pipe Lines
Designing pipe lines in a house or building needs careful vision. There is no cross connection between pipes for drink..
Ceiling
Ceiling Design- New Ceiling Design for 2012
Ceiling design ideas can change the overall look of the room. Look at the new collection of ceiling design that gives ..
Happy
Happy New Year 2009
GharExpert.com wishes you a Happy New Year. It’s a special occasion to celebrate and dance with friends and guests enj..
Dining
Dining Room Ceiling
Dining room ceiling designs can change the interior of your room. A white ceiling in your well furnished home looks du..
Happy
Happy New Year 2011 Wishes: Dream House Wallpapers from Gharexpert
GharExpert.com launched 2011 wallpapers.Check them out and let us know how they look.In order to setup these pictures a
What are various types of glasses used in doors?
Types of glasses used in doors-Clear window glass, Plate glass, Prism glass, Quartz glass, Processed glass.......
What are advantages and disadvantages of folding doors?
Advantages of folding doors- Easy to install,washable, durable, superior sound damping. Disadvantages-sensitive to har..
What are various designs available in wooden doors?
Designs available in Wooden doors.....
What is standard size of internal folding doors?
Size, Thickness and Weight of Internal Folding Doors.......
What affects the life of doors? What can we do to increase the life of the Wooden doors?
Tips to increase the life of Wooden doors....
What is the standard size of frame for Plastic/PVC doors?
Plastic Door frame size carrying one or two shutters......
What are various frames recommended for Plastic/PVC doors?
Frames for Plastic Doors..........
Which place is appropriate for sliding door?
Appropriate places for sliding doors-Bathrooms, Backyards, Commercial structures...........
What are various frames recommended for glass doors?
Frames for Glass Doors-Wooden frames, Steel frames, Aluminium frames......
Which place is appropriate for folding doors?
Appropriate places for folding doors-Homes, Offices, Guest rooms, gives attaractive and stylish look........
What are the various accessories recommended for folding doors?
Accessories for folding doors- Door Handles, Door Fasteners,Door Viewers.......
What affects the life of doors? What can we do to increase the life of the Plastic/PVC doors?
Tips to increase the life of Plastic doors....
Copyright 2007- GharExpert.com All rights reserved.  

 
 |  Advertize with us  |  About us  |  Contact us  |  RSS  |  Blog  |  Terms of service  |  Style made simple  |  Decorating slide show  |  Tips  |  Give your feedback  |