Roof Cost Calculator

[Cursitor Doom]

Hi all,

Inspired by Tricky Dicky's question about extensions, does anyone know of
an online resource for calculating the cost of a new roof based on square
metre-age, choice of tiles or slates, sarking yes/no and so on?

I could certainly use one!
thanks,
cd.

[Phil L]

"Cursitor Doom" <cu...@notformail.com> wrote in message
news:millgl$m27$1...@dont-email.me...

You can work all this out yourself easily enough.

Count the rows of tiles and how many is in each row, this will give you a
total for each elevation, then google for roof tiles.

Count the ridge tiles and do the same

Underfelt is normally breathable now, so you'll need a roll or two of that,
B&Q sell it so look there for prices.

If you replace the underfelt, you'll need new battens but these aren't
expensive, likewise google it.

2 men will easily strip and re-tile, inc battens and felt a 3 bed semi or
terraced in 3 days.

Scaffold will cost about £900

[John Rumm]

On 09/05/2015 20:00, Cursitor Doom wrote:
> Hi all,
>
> Inspired by Tricky Dicky's question about extensions, does anyone know of
> an online resource for calculating the cost of a new roof based on square
> metre-age, choice of tiles or slates, sarking yes/no and so on?

I have some 2008 estimate figures here for a 3 bed semi, that suggest
entry level is about £5K with cheap tiles, rising to £11K for more
expensive materials.


--
Cheers,

John.

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[Brian-Gaff]

Yes why is scaffold so expensive though?
Brian

--
From the Sofa of Brian Gaff Reply address is active
"Phil L" <neverc...@hotmail.com> wrote in message
news:V1t3x.423555$JH2....@fx11.am4...

[Tricky Dicky]

We had a hipped roof re-slated 4 years back on a 3 bed semi, the total came to about £3000 of which £600 was the cost of scaffolding. The only material costs were breathable under felt, roof laths and a handful of replacement slates. Took 2 guys the best part of a week to strip and replace.

Richard

[alan_m]

On 09/05/2015 20:00, Cursitor Doom wrote:

Don't overlook the cost of scaffolding and/or removal of rubbish/old roof.

--
mailto: news {at} admac {dot] myzen {dot} co {dot} uk

[alan_m]

On 10/05/2015 11:25, Tricky Dicky wrote:
> We had a hipped roof re-slated 4 years back on a 3 bed semi, the total came to about £3000 of which £600 was the cost of scaffolding. The only material costs were breathable under felt, roof laths and a handful of replacement slates. Took 2 guys the best part of a week to strip and replace.
>
> Richard
>

Terrace house with a right angle ridge section over the bay windows and
an extra 4 tile width sub-roof at the back of the property in SE Essex =
just under £5k.

It would have been more if I had chosen better quality tiles - but the
ones I've got will outlive me by a few decades or more.

Scaffolding 4 men for a _long_ day to erect, 3 men for a day to dismantle

2 men (1 skilled , the other more of a labourer) to strip old slates and
battens and to replace with membrane, battens, tiles and lead flashing
in around 4 days. Quite a lot of lead flashing - at roof level against
fire wall to one adjoining property, in the valleys of the ridge
section, the full width of the property for the sub-roof and around 2
off chimney stacks. Hidden gutters installed between my house and the
other adjoining property. (Terrace housing with properties build 30
years apart hence different adjoining style of roofing.)

[Cursitor Doom]

On Sat, 09 May 2015 20:20:52 +0100, Phil L wrote:

> You can work all this out yourself easily enough.

Not so simple in my case, Phil, with the roof comprising two irregular
pyramid shapes, one slightly smaller than the other with an area of flat
roof in between!
I should also have stated this is NOT going to be a DIY job (I know my
limits!) so I'm trying to ascertain roughly what it would cost to get a
roofing firm in to do it.

[Tim Watts]

On 10/05/15 11:25, Tricky Dicky wrote:
> We had a hipped roof re-slated 4 years back on a 3 bed semi, the total came to about £3000 of which £600 was the cost of scaffolding. The only material costs were breathable under felt, roof laths and a handful of replacement slates. Took 2 guys the best part of a week to strip and replace.
>
> Richard
>

Nearly 3 weeks in my case.

But part of the job was "install 75mm celotex between rafters and foam
in the lower 1/2m" which slowed them down. Plus dormer vertical faces
(plain tiles).

And we discovered the dormer flat roof needed redecking refelting too.

And this is a fully hipped roof with a very complicated set of flashing
plus 4 leaded bays.

I suspect you could get it down to a few days for a simple gable ended
hipped roof with no chimney (hell even I could do that).

But many houses, especially ones with conversions can get very complicated.

[whisky-dave]

2 bed flat £12.5K in total. would have been about £2K cheaper if I'd had the red tiles but I went for the synthetic slate which was about the same price of real slate.
Also the bits below the cuttering needed replacing (£600).

Scaffold was £1,200 because they said tiles can be walked on but slates and fake slates can't, H&S apparently. so extra scafolding was put up at the back of the house as well as from front almost doubled the price of the scafolding.
They replaced some of the wooden batterens too and it included insulating the loft as apparently gov. reqs say you need to update it when getting a new roof.

[alan_m]

On 11/05/2015 11:47, whisky-dave wrote:

> I went for the synthetic slate which was about the same price of real slate.

I hope they used decent nails. On the corner of my road and above a row
of shops the 4 flats above the shops had roof replaced with synthetic
slate around 25 years ago. 15 years later and continuing to the present
day it appears to be suffering from a lot of these slates slipping down
(nail rot?). My original slate roof was nearly 80 years old before
regular slate slippage started - and lasted another 20 years with minor
repairs before replacement.

>
> Scaffold was £1,200 because they said tiles can be walked on but slates and
> fake slates can't,

Obviously you have never seen cowboy aerial installers at work. They
will walk up old slate roofs even when it is evident that the roof is on
its last legs.

On my tiled roof the roofers removed the a couple of tiles in places to
expose the battens beneath and used these as steps to the top of the
roof when installing the capping tiles and flashing.

H&S apparently. so extra scafolding was put up at the back of the house

On my terrace property they used scaffold both front and back to provide
a safe working platform at gutter height. My roofer told me that
legislation requiring scaffolding was good idea especially as he was
getting older and was no longer prepared to take the risks as he had
done in his younger days when just working from ladders.

[Chris French]

In message <crcirg...@mid.individual.net>, alan_m
<ju...@admac.myzen.co.uk> writes

>On 11/05/2015 11:47, whisky-dave wrote:
>
>> I went for the synthetic slate which was about the same price of real slate.
>
>I hope they used decent nails. On the corner of my road and above a
>row of shops the 4 flats above the shops had roof replaced with
>synthetic slate around 25 years ago. 15 years later and continuing to
>the present day it appears to be suffering from a lot of these slates
>slipping down (nail rot?). My original slate roof was nearly 80 years
>old before regular slate slippage started - and lasted another 20 years
>with minor repairs before replacement.
>
>>

We have synthetic slates on the house roof.

AFAIK it was done before the house was listed (probably wouldn't have
allowed them if listed) , which was about 1987. Not suffered any
problems with the roof.

>> Scaffold was £1,200 because they said tiles can be walked on but slates and
>> fake slates can't,
>
>Obviously you have never seen cowboy aerial installers at work. They
>will walk up old slate roofs even when it is evident that the roof is
>on its last legs.
>
>On my tiled roof the roofers removed the a couple of tiles in places to
>expose the battens beneath and used these as steps to the top of the
>roof when installing the capping tiles and flashing.
>
>H&S apparently. so extra scafolding was put up at the back of the house
>
>
>On my terrace property they used scaffold both front and back to
>provide a safe working platform at gutter height.

Yup, nowadays I'd expect them to use scaffolding allround. I'm sure all
the roofing jobs I see are like that, and I expect it's be required to
meet the working at height regs
>

--
Chris French

[Tim Watts]

On 11/05/15 22:33, Chris French wrote:

> Yup, nowadays I'd expect them to use scaffolding allround. I'm sure all
> the roofing jobs I see are like that, and I expect it's be required to
> meet the working at height regs

Also because the job would take twice as long running up and down
ladders. With scaffold you can have all the tiles piled up, run along
and dart up and down bits of roof with relative impunity and have angle
grinders and tools available.

[whisky-dave]

On Monday, 11 May 2015 21:47:48 UTC+1, alan_m wrote:
> On 11/05/2015 11:47, whisky-dave wrote:
>
> > I went for the synthetic slate which was about the same price of real slate.
>
> I hope they used decent nails.

No idea what nailas they used couldn't find any.

On the corner of my road and above a row
> of shops the 4 flats above the shops had roof replaced with synthetic
> slate around 25 years ago. 15 years later and continuing to the present
> day it appears to be suffering from a lot of these slates slipping down
> (nail rot?). My original slate roof was nearly 80 years old before
> regular slate slippage started - and lasted another 20 years with minor
> repairs before replacement.

Difficult to say unless you know how much it cost originally to put teh slates up.

> > Scaffold was £1,200 because they said tiles can be walked on but slates and
> > fake slates can't,
>
> Obviously you have never seen cowboy aerial installers at work.

Yes I have, doen;t mean I'll employ them though.

> They
> will walk up old slate roofs even when it is evident that the roof is on
> its last legs.
>
> On my tiled roof the roofers removed the a couple of tiles in places to
> expose the battens beneath and used these as steps to the top of the
> roof when installing the capping tiles and flashing.

Had plenty of lets say no 1st langauge English speakers offers to clean cutterings, even to clean the bush from my garden.
Obviouly all highly qualified workers that will be brillant for the economy.

>
> H&S apparently. so extra scafolding was put up at the back of the house
>
>
> On my terrace property they used scaffold both front and back to provide
> a safe working platform at gutter height. My roofer told me that
> legislation requiring scaffolding was good idea especially as he was
> getting older and was no longer prepared to take the risks as he had
> done in his younger days when just working from ladders.

My roofer when I enquired why the cost of scaffoldign nearly doubled for
artifical slates over real ones. I should have told him to F. off and gort the polish in that would have saved me quite a bit and be better for the economy
as they'd all be paying taxes too.

[Vir Campestris]

We had our house re-tiled (dormers only) and re-thatched (the rest) last
year. The tilers wanted scaffold, and were standing on it cutting tiles
into odd sizes and such like. The thatchers used ladders. Including for
the bit around the back where there was no scaffold.

The tiles BTW I suspect were Victorian. They'd hoped to re-use the good
ones, but there weren't any.

The scary bit was watching the thatcher standing on a ladder and jumping
to make it go sideways!

Andy