Re-laying ridge tiles and repointing

[carlsbergy]

Hi, I live in a 1930s house and a few of the ridge tiles have come loose. What mix would I use to re-lay them? when I have lifted them off it looks like there are broken tiles in the old mix to fill the area below the tile up. Also I am looking to repoint the lines in between some others as the mortar has deterioted. I was going to mix some black in to darken the mix. Please can someone recommend what to use to darken the mix? Thanks

 

[HERTS P&D]

The mix should be 1 in 4.(1 cement, 4 sand)
The broken bits of tile are there to bulk up the mix, that way you will use less mix and to darken the mix, you will need to go to your local builders merchant and get some powder dye. It comes in small packets that you mix in with you sand and cement mix.

Hope that helps.

Andy

 

[carlsbergy]

Thanks Andy

 

[Leadman]

Personally i would use a 3/1 sand to cement mix, we always put in black dye(power or liqid) so it doesnt stand out so much, if you have the time take them off and do them all because it you just point up you will be back up there again next year.
Cheers
Dave

 

[SurreyRoofingEstimator]

The code of practice is to use a 3 to 1 mix. They say to use sharp sand rather then builders sand but TBH you'll end up chasing it down the roof so use builders sand

 

[noseall]

The code of practice is to use a 3 to 1 mix. They say to use sharp sand rather then builders sand but TBH you'll end up chasing it down the roof so use builders sand

It is possible to mix a hybrid, i.e. add a shovel of sharp to the builders sand per mix. It does help prevent shrinkage cracking when using a thick bed.

 

[Cumbrianroofer30yrsexp]

Also before bedding/pointing make sure you wet both the ridge and the area you bed you mortar on.This will esure the ridge will bond to roof/pointing.I usa a plant bio bottle for doing this.I use plastering sand 3-1 mix.Dye colour depends on tiles ie teracota=red,black/grey = black etc etc. .

 

[datarebal]

The code of practice is to use a 3 to 1 mix. They say to use sharp sand rather then builders sand but TBH you'll end up chasing it down the roof so use builders sand

It is possible to mix a hybrid, i.e. add a shovel of sharp to the builders sand per mix. It does help prevent shrinkage cracking when using a thick bed.

Both good advice.