Dry verge mortar mix

[shd1970]

Can anyone confirm what ratio i should use for re-pointing the dry verge please ?

There are a good few chunks of the original that are missing so am planning to knock it all out and re-point the lot

I've seen 4:1 and 3:1 mentioned so wondered what peoples thoughts were here

Also, should i primer it on the underside tile edge and roof board with either neat or diluted PVA to help adhesion ?

Thanks in advance

 

[rougharsedbrickie]

You can’t re-point a dry verge, they are plastic.

 

[shd1970]

You can’t re-point a dry verge, they are plastic.

It’s a fair cop rougharsedbrickie, I meant just roof verge !

 

[23vc]

3 building 1 sharp 1 cement was the last one I did, I did a scratch coat first shoved in then gave it a key, then top coated it next day, making sure I compacted/tooled it well when it dried a bit.
I’ve also used just plastering sand and cement and it was solid as a rock and still is.
The real proper way is to take the tiles off and bed them down into the wet mix tho.

 

[rougharsedbrickie]

3:1 is too strong and will crack

 

[shd1970]

23vc - thanks for the input
i found 3:1:1 a short while ago and the importance of the sharp sand being the key element

3:1 is too strong and will crack

whats your thoughts then...care to share ?

 

[rougharsedbrickie]

Fit dry verge, it’s maintenance free lol. Amazed at how properties have upvc doors windows fascia and soffit yet wet verge and ridge

 

[noseall]

3:1 is too strong and will crack

That depends.

 

[shd1970]

Fit dry verge, it’s maintenance free lol. Amazed at how properties have upvc doors windows fascia and soffit yet wet verge and ridge

...but my pointing is falling out and obviously near end of its life so what I would be securing the plastics caps to ?
The instructions I have seen is to simply use mortar screws
Personally the dry verge stuff looks ugly but we will live with it if we have to but as I say, if the mortar is falling out in some places now the whole run will at some stage

23vc actually suggested a 3:1:1 mix which is 4 parts sand so would be weaker than 3:1 surely

 

[23vc]

You fix the dry verge to the batten ends which are behind the existing mortar, using metal clips. Google installation instructions for klober dry verge
Yes the ratio I suggested is 4:1.

 

[^woody^]

That depends.

.... on how good you are.