Cost to replace flat garage roof

[Hoink]

I was wondering whether anyone knew the price of a garage roof these days?

We live in the Newcastle area and the garage is approx 7m by 2.5m.

The price we've been quoted of £1050 includes removing the old felt and putting down a lining and new felt on top. Comes with the certificate and ten years guarantee.

Does this sound reasonable?

[japgt]

that's absoloutly spot on, normal cost is around £60 per m2.

[Trevor450]

I paid the same last year to have a single garage reroofed with new timber and hot tar felt.

[Hoink]

Thanks you.

I seem to be getting different numbers from everyone I speak to.

Edited by Hoink on Monday 24th November 13:52

[roofer]

I'd expect a new deck for that figure.

[Hoink]

roofer said:

I'd expect a new deck for that figure.

This is the problem...

Money is tight as it is without being ripped off over a roof

[V8RX7]

I had a new garage roof felted - so obviously it's easier as they don't have to strip it or worry about making good.

I had prices from £3500- £1500

I then found the no. of a guy who did commercial roofs and he'd send someone around when a job finished early etc

He did it for £600 - 9yrs later still ok

IIRC it only took about 5 hrs for one man.

[crowfield]

I did mine myself last year. Stripped the old felt off. Roof was boarded and in good condition. Bought 5 sheets of OSB board and screwed them down over the top to give a nice smooth flat surface, then covered in Firestone EPDM rubber. Total cost was £450 . Kit came with nice edging pieces, water run-offs for guttering , glue etc. Looks like new and no joints to leak. It's also tough enough to slide my extension ladder on top of for storage.

Edited by crowfield on Monday 24th November 18:55

[Little Lofty]

Should be around £35/£40 per m2 for strip and re-felt. For over £1k you should be getting a new deck like roofer said. Materials for a roof that size to re-felt only will be around £350£400.

[Hoink]

Thanks all.

I've asked for a breakdown of the cost to see where the money is going.

[Hoink]

PH just saved me a lot of cash. Labour came in at over £500 for two people...

After several phonecalls I've decided to wait for a mate of a mate who should offer a better rate.

[DBSV8]

as long as the roof is structurally sound , install a fibre glass roof

http://apexfibreglassroofingsupplies.co.uk/product...

simple to DIY £ 150 for 15m2

Board over the top with 18 mm waterproof fibre board , Then install fibreglass edging strips , fibreglass Matting ,then gel coat ,to whatever colour you like
totally waterproof and would last around 30 years

and they look better

[roofer]

^ see that advice ? Totally disregard it.

[Hoink]

roofer said:

^ see that advice ? Totally disregard it.

I had fibre glass suggested but wasn't keen after I had read into it.

[DBSV8]

roofer said:

^ see that advice ? Totally disregard it.

care to elaborate ?

have had a fibreglass replacement roof over the kitchen its outlasted the neighbours felt roof , looks better and totally waterproof ?

[roofer]

DBSV8 said:

roofer said:

^ see that advice ? Totally disregard it.

care to elaborate ?

have had a fibreglass replacement roof over the kitchen its outlasted the neighbours felt roof , looks better and totally waterproof ?

For the last 30 years, I have been installing flat roofs, at a premium level . I like to think I know a thing or two about a thing or two on the subject.

Fibreglass will not have the lifespan of other membranes in a roof application, and I've seen this 1st hand. It also suffers from thermal shock, a loud banging/cracking sound.

Usually promoted by the likes of Anglian and Everest. The material cost is approx £3.50
M2 people then get charged many times this being told its a premium product.

It's not. Hopefully yours may have been installed by someone who has done more than the 1/2 hour course required.

There are people who do roofs properly with a conscience, and people that rip homeowners off. I'm the former. Hence my advice.

[DBSV8]

roofer said:

For the last 30 years, I have been installing flat roofs, at a premium level . I like to think I know a thing or two about a thing or two on the subject.

Fibreglass will not have the lifespan of other membranes in a roof application, and I've seen this 1st hand. It also suffers from thermal shock, a loud banging/cracking sound.

Usually promoted by the likes of Anglian and Everest. The material cost is approx £3.50
M2 people then get charged many times this being told its a premium product.

It's not. Hopefully yours may have been installed by someone who has done more than the 1/2 hour course required.

There are people who do roofs properly with a conscience, and people that rip homeowners off. I'm the former. Hence my advice.

thanks for the info ,

I installed it myself 20 years ago , after the original felt roof leaked ,

Fibre glass roof replacement was recommended by the insurance assessor, so far no leaks , or any issues with osomosis , thermal shock etc.

I did use the best quality products available and have many years experience working with fibre glass ,

will keep you posted , although the next door neighbour had a replacement felt roof fitted around the same time and hes had lots of issues with leaks , that of course could be down to the trademan that fitted it

thanks

[onomatopoeia]

roofer said:

For the last 30 years, I have been installing flat roofs, at a premium level . I like to think I know a thing or two about a thing or two on the subject.

Fibreglass will not have the lifespan of other membranes in a roof application, and I've seen this 1st hand. It also suffers from thermal shock, a loud banging/cracking sound.

So what would be the best option for a flat roof? I'm looking at converting one of the garages to a study in the next couple of years and it will need a new roof covering and timber (currently the roof is corrugated asbestos ).

[darreni]

I've just had a 22sqm flat garage roof redone with triple layer torch on felt/membrane stuff.
Including some leadwork where it joins a gable end, the cost was £1650. There was no new deck in that as the boards were in very good shape under the old roof.

[roofer]

onomatopoeia said:

So what would be the best option for a flat roof? I'm looking at converting one of the garages to a study in the next couple of years and it will need a new roof covering and timber (currently the roof is corrugated asbestos ).

It's dictated by budget, you'll be insulating, so a warm roof.

Asphalt (Permaphalt) being the best, any HT torch on membranes, and good detailing.