Roof tiles

[steve_b_wales]

I have tiles fitted on my kitchen roof. They've been there for at least 20 years. No problems with leaking, but there is a lot of 'sand' washing off them, which is causing my very small backyard sink to become partly blocked. Eventually, I'll get the tiles replaced, but they are not at the top of my list at the moment. Could these tiles be sealed with a clear varnish or similar to stop anymore 'sand' coming off them?

                Thanks.

[JKD]

To be honest Steve, most of the sanded surface would be gone after 20 years. Nature of the beast with granular roof tiles unfortunately. Also, if it was ever a good idea to coat roof tiles with anything, everyone would be doing it 😉 My advice,,,, leave them alone 👍

[steve_b_wales]

6 minutes ago, JKD said:

To be honest Steve, most of the sanded surface would be gone after 20 years. Nature of the beast with granular roof tiles unfortunately. Also, if it was ever a good idea to coat roof tiles with anything, everyone would be doing it 😉 My advice,,,, leave them alone 👍

Thanks. There's always a lot of 'sand' in the gutter, which then goes into the small drain. My main roof tiles, are I believe, called 'Santoft' (?) and were fitted at least 40 years ago. I know that they had a glaze on them. Nothing seems to come of them, apart from Moss.

[JKD]

Roofs and gutters are the most least maintained part of a house. Moss can build up, get washed off and then block box gutters, valleys and of course the guttering itself, causing possible water ingress to the roof/attic area.

If it's an ongoing issue, an annual maintenance programme should be carried out 😉 At the end of the day, the roof and its components are the first line of defence against the weather for all properties, but are neglected until a problem occurs ⛈️🌬️🌀🌧️😣

[Jim Neal]

Short answer is yes you probably could coat something on the tiles to reduce/eliminate it, but is the scale of the problem worth the cost and time of the cure?

Maybe something like SBR mortar additive, or even an impregnating sealer.  Some things might dramatically alter the look of the tiles, others will not.

You don't say how exactly the grit is getitng into your sink - it is splashing, or running down something.... can you do something to stop that, rather than do something to the tiles?

By the way get your gutters lined with gutterhog to help stop moss & leaves blocking them up

[steve_b_wales]

21 hours ago, Jim Neal said:

Short answer is yes you probably could coat something on the tiles to reduce/eliminate it, but is the scale of the problem worth the cost and time of the cure?

Maybe something like SBR mortar additive, or even an impregnating sealer.  Some things might dramatically alter the look of the tiles, others will not.

You don't say how exactly the grit is getitng into your sink - it is splashing, or running down something.... can you do something to stop that, rather than do something to the tiles?

By the way get your gutters lined with gutterhog to help stop moss & leaves blocking them up

The grit runs off the tiles, to the gutter then down to the sink. When we have a few dry days (rare in Wales) you can actually see how much goes into the gutters. And I've recently put some plastic mesh over the gutter which defects the moss onto the ground.🙂

 

Edited May 29, 2021 by steve_b_wales

[Scully]

Stabilising solution? 

[henry d]

My last house used to have a lot of gritty sand come off the roof and apparently they have a limited lifetime (50 yes) and I realise that yours may be different however some people have had coatings/paint applied and to be honest they all seem to peel or fade. I just went up every 5 years or so and cleaned off the moss and swept gutters etc

[Fisheruk]

Check to see if it is just the surface, or are the tiles degrading on their edges. The way to check that is to gauge the gap between the sides of adjacent tiles. Are the tiles interlocking or plain tiles? If the tiles are reducing dimensionally the tiles are coming to the end of their life. 

[JKD]

If roof tiles needed a coating of something after they've been fitted, the manufacturers would supply some with a certain number of tiles. I've never heard of a roofer applying anything to roof tiles, in 40 years of being in the building industry. Moss etc are a natural phenomenon and can be brushed off and gutters cleaned,,,, it's called maintenance. It's up to each individual how often this should be carried out 👍 Other than that,,,, forget about the roof until you get water ingress, or storm/tree damage 😉

Sand coming off tiles is the reason I encourage clients NOT to have them 😏

If your roof tiles/slates are degrading, then the only solution is to take them off and fit new ones 🙂 This occurs mainly with plain tiles and slates.

Sorry if that sounds like a rant 😣😂

Edited May 29, 2021 by JKD

[Fisheruk]

Hardrow Concrete slates went through a very bad patch at one time and were degrading after 15 years, although the manufacturer said that they were good for 60 years. 😳

[steve_b_wales]

4 hours ago, JKD said:

If roof tiles needed a coating of something after they've been fitted, the manufacturers would supply some with a certain number of tiles. I've never heard of a roofer applying anything to roof tiles, in 40 years of being in the building industry. Moss etc are a natural phenomenon and can be brushed off and gutters cleaned,,,, it's called maintenance. It's up to each individual how often this should be carried out 👍 Other than that,,,, forget about the roof until you get water ingress, or storm/tree damage 😉

Sand coming off tiles is the reason I encourage clients NOT to have them 😏

If your roof tiles/slates are degrading, then the only solution is to take them off and fit new ones 🙂 This occurs mainly with plain tiles and slates.

Sorry if that sounds like a rant 😣😂

It's our intention of renewing the roof next year. I was hoping that there was something I could do to prevent the sand/grit coming off the tiles in the meantime.🙂

[mel b3]

8 hours ago, steve_b_wales said:

It's our intention of renewing the roof next year. I was hoping that there was something I could do to prevent the sand/grit coming off the tiles in the meantime.🙂

I've seen tiles sealed with something that goes on like water , and dries to a shine , but I wouldn't honestly have a clue what it is , or even if it's supposed to be used on a roof , it's probably something similar to the stuff that's used to seal block paving. 

[steve_b_wales]

50 minutes ago, mel b3 said:

I've seen tiles sealed with something that goes on like water , and dries to a shine , but I wouldn't honestly have a clue what it is , or even if it's supposed to be used on a roof , it's probably something similar to the stuff that's used to seal block paving. 

I've got a similar product called Aquaseal, which penetrates cement/concrete blocks and stops water getting through. It doesn't shine and you can't see the 'seal' on it. As mentioned, I just wanted something until the roof is renewed next year.

[mel b3]

16 minutes ago, steve_b_wales said:

I've got a similar product called Aquaseal, which penetrates cement/concrete blocks and stops water getting through. It doesn't shine and you can't see the 'seal' on it. As mentioned, I just wanted something until the roof is renewed next year.

I'd do a tipton repair , and paint it with bitumen 😅

[steve_b_wales]

8 hours ago, mel b3 said:

I'd do a tipton repair , and paint it with bitumen 😅

[Saltings]

as with many building materials at the moment concrete roof tiles are the new gold dust  second hand are selling for more than new       given delivery's for new  estimated next January    housing contracts are taking priority     wait a year or two     in the meantime      Clear Roof Sealer | Roof Tile Sealer | Seal Roof Tiles - Smartseal

[Jim Neal]

On 30/05/2021 at 08:49, mel b3 said:

I'd do a tipton repair , and paint it with bitumen 😅

How's that broken dining chair holding up?

On 28/05/2021 at 23:24, steve_b_wales said:

The grit runs off the tiles, to the gutter then down to the sink. When we have a few dry days (rare in Wales) you can actually see how much goes into the gutters. And I've recently put some plastic mesh over the gutter which defects the moss onto the ground.🙂

 

TBH I'm still struggling with the concept of a sink, outside, with a guttering downpipe running in to it!  Sinks are sinks, storm drainage is storm drainage, never the twain should meet! 

(please shine a desk lamp into your eyes for the following series of questions)

What do you use the sink for?  Has it still got a u-bend trap under the plughole?  I guess that's where the blockage is occurring?

Is the waste outlet from the sink connected to the rain water drainage or the sewerage? Sinks should be connected to the foul water drainage.  Only rain water is permitted to be discharged into storm drainage.  Rain water is not permitted to be discharged into the foul water sewage system.

Short term easy fix would be to get rid of the u-bend, presuming that's the location of the blockage.

The gradual run-off of sediment from your roof tiles wouldn't be noticed in a standard gutter/downpipe system as there are no constrictions allowing it to agglomerate.  I feel like you've made a rod for your own back

Edited June 1, 2021 by Jim Neal

[Saltings]

im assuming the downpipe keeps it clean  when not in use  the same as me      and when dressing something out  grose as hell not allowed inside like me           a hose pipe   or tap to wash away  unwanted  debris           bring in the good bits for the freezer      one happy                    one   not happy  with the bling kitchen covered in gunk  a drama         i say          **** off this is where food comes from              and get kids involved  mine love spag boll with diced pigeon     bambi stew      Taiwanese underground chicken   (rabbit )  bbq            mrs  a ham butty     or boiled chicken from tesco wet **** sarni