Hi all, I'm not sure this is the right place to ask but I've a roofing qestion

thepeck wrote: »

I've a 70s bungalow that need to be re-roofed.
It's currently tiled and the tiles ar getting very weak.
I'm leaning toward using plasti-coated tile effect metal sheets in place of the tiles.

Has anyone any input from experience as to why this may be a bad idea?
Any advise is greatly appreciated.
Thanks in advance

Hi, my own cottage a little older (200 years), I made a silly error by extending and not considering correct pitch, after 10 years and because of wind exposure slates have started to move. It's a substantial lean back/ sloping roof at rear of cottage approx 40ft X 30ft Approx.

The best cost effective solution I've come up with after much consideration is replacing this section with Steel Cladding that is NON Drip. The plan is to leave front of cottage as is as no issues with pitch there, essentially marrying the two sections.

My timbers are fine so I'm lucky however some new timbers running at a different angle to facilitate cladding will be needed. The cost to include fitting will be around 6K which is by far alot less expensive than slating. Again I emphasise I've little option but steel cladding due to pitch error.

I'm hoping to recoup some expense by selling the blue Bangor slates that will be removed and saved, thankfully my insulation can be salvaged.

Steel cladding not a solution for everyone and finish needs to be considered, I'm choosing slate effect. Some might have planning considerations also but I don't think that an issue for house built in 70"s.

So to surmise.
My decision based on need and cottage in exposed area (mountains).

Consider Color and appearance, I'm using slate effect and black, if I was replacing entire roof, I'd probably go some made color, that's just me

Is your roofing frame in good condition, either way you'll need new layout to facilitate cladding.

USE NON DRIP ONLY, this type as light insulation coat to minimise condensation.

To put in context. My new roof about 10 years ago was €17,000, replacement with cladding €6K, of which is mainly labour, removing existing slates, keep in mind all in excellent condition and hoping to sell on. I'm also supplying everything, I should mention I'm using local trusted tradespeople. I've also made sure Trades people fully insured.

Choose appropriate time to do this, as it could take up to two weeks depending on the size of your property, good luck.

thepeck wrote: »

Thanks for the reply.
The structure is fine but it'll need to be latted and felted. Would a non drip finish be essential when it'll be felted.
Planning won't be an issue as it'll be indistinguishable once completed.

I would strongly recommend non drip, whilst a little more expensive, worth it, Felt is all well and good but it does deteriorate, also you do not want condensation build up or sitting on felt as it will eventually seep through and your timbers will either rot or get dry rot. Others may disagree but it's a big undertaking and I'd spend the extra for peace of mind.

Just one thing I didn't mention, ventilation, I'm fortunate to have block work I can put vents into and the space under roof iis cladded inside in open plan room and part storage attic space.

Not sure what your layout is but might be good to ask about ventilation if you've attic space under roof.

Good luck

listermint wrote: »

You have to look at your planning permission to changed your roof from tiles to some synthetic replacement like that

Not sure planning permission would come into it albeit OP advised on that, the house was built in the 70"s. Planning may be an issue if Height was being changed. I would say however if slates replaced with Cladding, this would need updating on structural elements of house insurance.

OP, what is the roof pitch ?
I'd imagine if you change from concrete tile to metal tile effect cladding it is a material change in the eyes of the planners but who is going to object or come after you ? Worst case would be a retention application but I'd be very surprised.
What colour is existing and proposed ?
If you can, check out some similar completed projects to see how the roof weathered over time.
I'm sure the spec and quality varies so don't always go for the cheapest. Check warranties, colour guarantees etc.

I would be suspicious of the root cause of the issue here...

70's is not very old re house and roofing. There should not be issues with any tiles supplied and fitted then. Look further.

Non drip cladding is also not required. You should not have any moisture in your attic to condense. Non drip is intended for uninsulated sheds.