Advice on fitting a 28m x 1.2m dibond sign to steel cladding

[Kevin Flowers]

John
hoarding board is ally both sides but only one side as a finish, beware if you are not covering it. The colour is a very dirty white. Re warping composite has a very low expansion rate so edge to edge should not be a problem if it does expand a little the cladding should allow it to move a small amount as cladding isn’t a ridged surface because of its corrugations.

Kev

[John Dorling]

Thanks Kev.

Good advice re colour of hoarding board. I was told it was matte white but haven’t seen a sample. I shall look into this. I think I’ll face fix it with self drilling screws and cover with white caps, unless anyone has a nicer looking/easier alternative?

Thanks

John

[Dan Osterbery]

you could use rivots and paint them white! might be quicker

[John Harding]

Dan not sure thats quicker, ie drill first then rivet, using tec cladding screws which are self tappers run straight in with a battery drill

john

[Dan Osterbery]

sorry misread the post "self tappers" probably quicker, 1 hole

[Martin Pearson]

John H, can you get white caps that will fit over tec screws???

[Robert Lambie]

quickest and best in my opinion is using tech-screws. you can buy them HERE

Tech screws have covers in many colours, but i prefer to leave the silver finish as the caps look bulky…

Ashby Trade Supplies, sell colour plastic coated rivettes and also coloured plastic self taping screws. i use both on occasion. the screws need a smaller screw head bit than the regular sizes we would find in our cordless driver guns so be sure to get one out of b&q as the regular ones tend to thread the head of the self tapers from ashby. or, pilot hole first and you will be fine.
the screws and rivets come in various colours though i have only used white.

i think JAG sign supplies also do coloured screw heads as opposed to plastic coated colours.

[KeithdWhitson]

i would tend to use hex bolts, same as what Rob said (i call them something different) for cladding especially at the size you are talking about. screws can sometimes be too small when drilling into cladding, especially at such big sizes and to pre drill the rivet would take forever.

[Martin Pearson]

Keith, sorry but I’m not sure I understand your post, Hex bolts would need a nut on the other side of the cladding to keep them in place. What Robert has suggested ( Tech screws) are just that they are self drilling screws so if that’s what you meant your comment about not using screws doesn’t really make sense sorry.

[Richard Urquhart]

Did a sign like this today, used tech screws from screwfix same as the ones in Robs link, the caps are a no no as its been said make the head to big, fitted the sign and touched heads in with a brush and some automotive paint to match.

[John Dorling]

Thanks for the replies. I’ll be using self drilling (tec) screws as I’ve used these before with a driver and prefer them to screws – hex head and built in washer so no chance of drill slipping and putting a dirty great big scratch down the sign!

Thanks

John

[John Harding]

Hi Martin

quote :

John H, can you get white caps that will fit over tec screws???

wot Rob said cant add to that 😀