Exceeding the manufacturers recommended gauge

[BobbyBrown]

Hi,

I have a small porch canopy to tile (6ft x 2ft). I'm using marley clay tiles which have a max stated gauge of 100mm, am I ok to increase this slightly to 120mm?
My reasoning is that I dont want to add too much weight to the canopy and the porch is in a sheltered position so isn't exposed to the prevailing wind / rain.

Thanks in advance

 

[noseall]

Why would you, seems bonkers to me. What happens if it gets a covering of snow? Surely the canopy is built better than that. If it is so fragile as to worry about an extra course of tiles then you should not be sheltering beneath it.
What is the roof pitch?

 

[BobbyBrown]

Its just over 30 degrees. I want to increase the gauge so the spacing doesn't look odd near the ridge

 

[noseall]

The spacing always looks out of kilter near to the ridge, especially when you consider the short course.

Your roof is already under pitched so even more reasons for not opening up the gauge.

 

[datarebal]

it will leak.

 

[catlad]

If its the one I have seen a picture of which is more of a door canopy
really then you will be fine.

 

[BobbyBrown]

If its the one I have seen a picture of which is more of a door canopy
really then you will be fine.

Hi Catlad,

Yes that's the one, I've finally finished (nearly...). Just got some more painting to do and the leadwork.

The gauge ended up being 115mm, but each tile was still double lapped. We've had quite a bit of rain the past two days and (touch wood) it hasn't leaked. If it was on a habitable part of the building I would of course not have exceeded the max 100mm.

If it leaks I shall report back, if not, people can use this info as they wish.

 

[catlad]

You can now buy the pvc. fascia to match your door if you like.

 

[BobbyBrown]

This is what it was like

Can't think of anything worse than PVC to be honest, I think Safestyle have ruined so many good looking buildings!

It's a wooden door (not sure how old) that I've stripped and painted. Since the pictures been taken I've stained the fascia and plugged the drill holes, ill upload a picture soon.

 

[catlad]

Ahh its my eye's I thought you had a new pvc. anthracite door.

 

[datarebal]

look at a batten after its rained a lot