OSB Board for garage roof Nail or Screw?..

[tony sayer]

As it says really we're re-roofing the garage roof taking off the
chipboard or shitboard rather! And replacing with 18 mm OSB grade 3 just
wondering what the best way of fixing it was?, nail it or screw it
obviously with countersunk screws, its to be covered with an EDPM
membrane rubber roof covering.

Cheers..

--
Tony Sayer


Man is least himself when he talks in his own person.

Give him a keyboard, and he will reveal himself.

[Nikki Smith]

Both are OK, the recommended fixing centres is 100mm for both, so nailing is cheaper. You need 50mm nails min diameter 0.16 x fixing thickness. Nails to be corrosion protected.

If you can be bothered, chapter and verse can be found in TRADA's Panel Guide, which I think you can download for free...

[Andrew]

Err, NO. The Permaroof videos say do not use nails because they could
work loose. Needs to be screwed down.

See PermaRoof Uk web site and read the installation guide called
'Roof preparation'

Also, if you haven't bought the OSB3 yet, use the 8x2 t&g version if
your joist spacings are more than 18 inches, else noggins are
recommended.

[John Rumm]

On 20/09/2019 11:47, tony sayer wrote:
>
> As it says really we're re-roofing the garage roof taking off the
> chipboard or shitboard rather! And replacing with 18 mm OSB grade 3 just
> wondering what the best way of fixing it was?, nail it or screw it
> obviously with countersunk screws, its to be covered with an EDPM
> membrane rubber roof covering.

Screw would be my choice, less chance of a board lifting at a joint and
splitting the covering.


--
Cheers,

John.

/=================================================================\
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[newshound]

On 20/09/2019 17:50, John Rumm wrote:
> On 20/09/2019 11:47, tony sayer wrote:
>>
>> As it says really we're re-roofing the garage roof taking off the
>> chipboard or shitboard rather! And replacing with 18 mm OSB grade 3 just
>> wondering what the best way of fixing it was?, nail it or screw it
>> obviously with countersunk screws, its to be covered with an EDPM
>> membrane rubber roof covering.
>
>
> Screw would be my choice, less chance of a board lifting at a joint and
> splitting the covering.
>
>

+1, I hardly ever use nails for anything these days. Whilst they are
cheaper, modern screws with an impact driver are IMHO faster and more
secure, and also easier to remove if that becomes necessary. (Not faster
than a power nailer of course).

[John Rumm]

Yup, nailer with ring shank nails has pretty good holding power as well.

[PeterC]

On Fri, 20 Sep 2019 21:10:26 +0100, John Rumm wrote:

> On 20/09/2019 20:32, newshound wrote:
>> On 20/09/2019 17:50, John Rumm wrote:
>>> On 20/09/2019 11:47, tony sayer wrote:
>>>>
>>>> As it says really we're re-roofing the garage roof taking off the
>>>> chipboard or shitboard rather! And replacing with 18 mm OSB grade 3 just
>>>> wondering what the best way of fixing it was?, nail it or screw it
>>>> obviously with countersunk screws, its to be covered with an EDPM
>>>> membrane rubber roof covering.
>>>
>>>
>>> Screw would be my choice, less chance of a board lifting at a joint
>>> and splitting the covering.
>>>
>>>
>> +1, I hardly ever use nails for anything these days. Whilst they are
>> cheaper, modern screws with an impact driver are IMHO faster and more
>> secure, and also easier to remove if that becomes necessary. (Not faster
>> than a power nailer of course).
>
> Yup, nailer with ring shank nails has pretty good holding power as well.

I used those - stainless steel ones - on one shed's roof. The roof is
Onduline, so it does need 'adjusting' occasionally due, I think, to the
material giving as it's heated and cooled.
The other shed I used st. st. screws, 4mmx80mm, in place of the nails as I
didn't want to use a hammer.
On the wooden shed that I built I used 6mm Turbo Ultra st. st. screws then,
on the walls, put in a few ring-shank nails so that the wall panel was hard
to remove. Won't stop a cordless saw though.
--
Peter.
The gods will stay away
whilst religions hold sway

[tony sayer]

In article <DlEjHSEt...@bancom.co.uk>, tony sayer
<to...@bancom.co.uk> scribeth thus

>
>As it says really we're re-roofing the garage roof taking off the
>chipboard or shitboard rather! And replacing with 18 mm OSB grade 3 just
>wondering what the best way of fixing it was?, nail it or screw it
>obviously with countersunk screws, its to be covered with an EDPM
>membrane rubber roof covering.
>
>Cheers..
>

Thanks for that screws it is then!

[harry]

On Friday, 20 September 2019 11:47:24 UTC+1, tony sayer wrote:

> As it says really we're re-roofing the garage roof taking off the
> chipboard or shitboard rather! And replacing with 18 mm OSB grade 3 just
> wondering what the best way of fixing it was?, nail it or screw it
> obviously with countersunk screws, its to be covered with an EDPM
> membrane rubber roof covering.

Another alternative here.
The shanks are twisted 7 therefore hard to pull out.
https://www.ebay.co.uk/sch/i.html?_nkw=spring%20head%20roofing%20nails

[John Rumm]

Those are designed for fixing things like corrugated sheets, not fixing
a desk that will be covered after. So completely unsuitable for use
under a EDPM roofing membrane - the protruding heads will damage the
covering.

[John Rumm]

On 24/09/2019 16:30, John Rumm wrote:
> On 24/09/2019 15:58, harry wrote:
>> On Friday, 20 September 2019 11:47:24 UTC+1, tony sayer  wrote:
>>> As it says really we're re-roofing the garage roof taking off the
>>> chipboard or shitboard rather! And replacing with 18 mm OSB grade 3 just
>>> wondering what the best way of fixing it was?, nail it or screw it
>>> obviously with countersunk screws, its to be covered with an EDPM
>>> membrane rubber roof covering.
>>
>>
>> Another alternative here.
>> The shanks are twisted 7 therefore hard to pull out.
>> https://www.ebay.co.uk/sch/i.html?_nkw=spring%20head%20roofing%20nails
>
> Those are designed for fixing things like corrugated sheets, not fixing
> a desk that will be covered after. So completely unsuitable for use
> under a EDPM roofing membrane - the protruding heads will damage the
> covering.

or deck even :-)

[Andrew]

On 24/09/2019 19:41, John Rumm wrote:
> On 24/09/2019 16:30, John Rumm wrote:
>> On 24/09/2019 15:58, harry wrote:
>>> On Friday, 20 September 2019 11:47:24 UTC+1, tony sayer  wrote:
>>>> As it says really we're re-roofing the garage roof taking off the
>>>> chipboard or shitboard rather! And replacing with 18 mm OSB grade 3
>>>> just
>>>> wondering what the best way of fixing it was?, nail it or screw it
>>>> obviously with countersunk screws, its to be covered with an EDPM
>>>> membrane rubber roof covering.
>>>
>>>
>>> Another alternative here.
>>> The shanks are twisted 7 therefore hard to pull out.
>>> https://www.ebay.co.uk/sch/i.html?_nkw=spring%20head%20roofing%20nails
>>
>> Those are designed for fixing things like corrugated sheets, not
>> fixing a desk that will be covered after. So completely unsuitable for
>> use under a EDPM roofing membrane - the protruding heads will damage
>> the covering.
>
> or deck even :-)
>
>

The people who supplied my EDPM kit warn against using using nails
in case they work loose over time. Only screwing is acceptable
to them or the guarantee would be invalid.

[newshound]

Slightly confused. Is the Onduline on top of board, or into rafters?
What do you mean by adjusting? I have a 25 year old Onduline roof that
is still watertight, but sags everywhere and the "overhangs" have
collapsed because I didn't support them adequately. Also, I rent a
stable with 10 year Onduline which has sagged and split in places
leading to small leaks. I think if I were using it again I would put it
down on top of board, or alternatively just use shaped metal sheeting.

[tony sayer]

In article <qmdohs$13t6$1...@gioia.aioe.org>, Andrew <Andrew97d-
ju...@mybtinternet.com> scribeth thus

All screwed now thanks:)

Awaiting a couple of rainless days to get the tarpaulin off and the EDPM
on:);!...

[Andrew]

Err, the EPDM *is* a tarpaulin :-).

You could have loose laid it (it needs some time to 'move' to
the correct size) and tacked the edges with some tile battens
and maybe added some weights if you are in a windy area.

Last nights Grand Designs showed an old water reservoir converted
into a house. He used EPDM to save on the £50,000 quote for
a proper roof, but it still cost him £12,500 to DIY it with EPDM

[tony sayer]

In article <qml46r$i9j$1...@gioia.aioe.org>, Andrew <Andrew97d-

Yes indeed;!.. A shade thicker than what's up there now!..

>
>You could have loose laid it (it needs some time to 'move' to
>the correct size) and tacked the edges with some tile battens
>and maybe added some weights if you are in a windy area.
>

Well the plan is to glue it down and lay another course of bricks with
some cappings, it doesn't terminate that easily on this roof picture
would be worth a 10000 words here:!

>Last nights Grand Designs showed an old water reservoir converted
>into a house. He used EPDM to save on the £50,000 quote for
>a proper roof, but it still cost him £12,500 to DIY it with EPDM

Bloody hell!, just how big was this reservoir palace size?..

[Andrew]

Massive. There is a 4 foot void under the suspended flooring too.
The program will be repeated within 7 days, and presumably on
ALL4 too