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 ****board 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