Builders
Carpenters
Electricians
Flooring Specialists
Gardeners
Handymen
Heating Engineers
Painters & Decorators
Plasterers & Renderers
Plumbers
Roofers
Tilers
myFind Tradespeople, compare up to 3 quotes!
It's FREE and there are no obligations
How it works
Ask a trade
Cost guides
Categories
Ceiling Joists Removed
Hi. We recently had insulation done in a small extension that has a small apex roof. The man doing all the work for us, advised us that we could heighten our internal ceiling by removing the ceiling joists before putting the insulation in. We had a back and forth about safety and he said cause it’s a small roof, there wouldn’t be too much weight on it. It’s about twenty five square metres of a space.
He said that he could cut out blocks of wood and screw them in between each rafter so that each rafter was connected to another one with a small block of wood between them, but no collars or joists.
Insulation went in, plastering completed and now about 4 months later, large hairline cracks are appearing in various spots on the roof, one side to the other. Got worse after a storm.
Were we played for fools by listening to him? And will it eventually collapse or spread so much that it cracks much worse?
Expert Trade Answers
Best Answer
"Hi pal. 25 sq meters pitched roof without joists should be fine if done properly. It sounds to me that it isn't strong enough therefore there's slight movement making the plaster crack."
Answered on 16th Dec 2024 - Member since Nov 2024 -
report
"Get a structural engineer to look only way to be sure or a second opinion as you’d need a certificate if you want to sell at any point"
Answered on 16th Dec 2024 - Member since Jul 2024 -
report
"Hi. Something is definitely moving to cause cracks in relatively new plaster. If the roof is not built correctly or the timber is the wrong size or spec you will always face cracking
It could also be caused by structural movement"
It could also be caused by structural movement"
Answered on 16th Dec 2024 - Member since Nov 2022 -
report
"With fresh plastering done there is a likelyhood of cracking especially it's done directly onto wood, but the fact you've got cracks it does need a qualified builder or at least s second opinion to check if the work in the roof space has been altered correctly with loading factors correctly calculated, best to get a structural survey done to put your mind at rest."
Answered on 17th Dec 2024 - Member since Oct 2018 -
report
Related questions
Search other questions
Ask a Trade
Got a question that only a tradesperson can answer? We have thousands of trades ready to answer any question you may have.
Ask your question
Other categories
- Aerial Specialists
- Architects
- Bathroom Specialists
- Bricklayers
- Builders
- Joiners
- Cleaners
- Drainage Specialists
- Driveway Specialists
- Electricians
- Flooring Specialists
- Gardeners
- Handymen
- Heating Engineers
- Kitchen Fitters
- Locksmiths
- Loft Specialists
- Metalworkers
- Painters & Decorators
- Pest Controllers
- Plasterers
- Plumbers
- Removal Companies
- Roofers
- Security Specialists
- Specialists
- Stoneworkers
- Swimming Pool Specialists
- Tilers
- Traditional Craftsman
- Tree Surgeons
- Window Specialists
See all questions
Ask a Trade
Are you looking for advice on a DIY project or have a question for our tradespeople?
We'll email your question to tradespeople who are skilled in your chosen category.
Your question will be made public - please do not include any personal details.
{{ first(ask.errors)[0] }}
Report Content
{{ first(reportForm.errors) }}
Thank you
Your report has been created and will be investigated shortly.
Over 1 million homeowners and over 50,000 tradespeople
use MyJobQuote nationwide each year