Waterstop

2012paddy2012

I have an interlocking tile roof. The pitch is too low. I have a leak coming in at top of velux. I have it tec7 'd to within an inch of its life ! I cannot see any hole anywhere I am at my wits end.
I spoke to a roofer today who advises to use a product called " water stop"

He tells me clean off the roof and wait for a dry day and coat it fully.

A rubber type seal will form over the roof and it will or should stop the leak for 5/6 years, it's 3k for a zinc roof , any one that looks at it seems uninterested in finding source of leak .... No money in it I suppose.

I asked him will the heat/ cold - contracting etc not just break it up , he says no that it will be like a rubber !?

Anyone fear use this particular type of product? Any good. Is it hard to put on?

jpb14

2012paddy2012 wrote: »

I have an interlocking tile roof. The pitch is too low. I have a leak coming in at top of velux. I have it tec7 'd to within an inch of its life ! I cannot see any hole anywhere I am at my wits end.
I spoke to a roofer today who advises to use a product called " water stop"

He tells me clean off the roof and wait for a dry day and coat it fully.

A rubber type seal will form over the roof and it will or should stop the leak for 5/6 years, it's 3k for a zinc roof , any one that looks at it seems uninterested in finding source of leak .... No money in it I suppose.

I asked him will the heat/ cold - contracting etc not just break it up , he says no that it will be like a rubber !?

Anyone fear use this particular type of product? Any good. Is it hard to put on?

Its a permantly elastic grey coloured water proof membrane that is waterproof the second you apply it.It can be used outdoors and you roller it on or brush it on.Its fine to use outdoors with regards sunlight,heat and also frost and ice.All good builders provider stock it.

shane0007

2012paddy2012 wrote: »

I have an interlocking tile roof. The pitch is too low. I have a leak coming in at top of velux. I have it tec7 'd to within an inch of its life ! I cannot see any hole anywhere I am at my wits end.
I spoke to a roofer today who advises to use a product called " water stop"

He tells me clean off the roof and wait for a dry day and coat it fully.

A rubber type seal will form over the roof and it will or should stop the leak for 5/6 years, it's 3k for a zinc roof , any one that looks at it seems uninterested in finding source of leak .... No money in it I suppose.

I asked him will the heat/ cold - contracting etc not just break it up , he says no that it will be like a rubber !?

Anyone fear use this particular type of product? Any good. Is it hard to put on?

If it's a concrete interlocking tile, why don't you remove the tiles around the velux & inspect the flashing detail?
They are simple to remove & re-instate. It maybe a very easy fix once you can see the full flashing detail.

2012paddy2012

shane0007 wrote: »

If it's a concrete interlocking tile, why don't you remove the tiles around the velux & inspect the flashing detail?
They are simple to remove & re-instate. It maybe a very easy fix once you can see the full flashing detail.

Oh I think I might try that thks

sky6

if you can Examine the Tiles around the Velux Window closely. It may just be a cracked Tile causing the leak, This can happen from people walking on the Roof while fitting the Velux Window.
I have seen this before. Rood windows are well designed and are not usually the cause of the Leak.

sky6

if you can Examine the Tiles around the Velux Window closely. It may just be a cracked Tile causing the leak, This can happen from people walking on the Roof while fitting the Velux Window.
I have seen this before. Roof windows are well designed and are not usually the cause of the Leak.

2012paddy2012

sky6 wrote: »

if you can Examine the Tiles around the Velux Window closely. It may just be a cracked Tile causing the leak, This can happen from people walking on the Roof while fitting the Velux Window.
I have seen this before. Roof windows are well designed and are not usually the cause of the Leak.

I agree with you thks re window. I have looked very carefully around the velux I cannot see any gap. I have even filled in around the velux outside with tec 7 .. It's very frustrating but thks ... Need ..someone expert out near meath to look at it ... The " roofers" so far haven't a clue thks tho

albert kidd

take a picture of the roof and stick it on here.

the water may no be getting in at the velux itself,it could be getting in somewhere else on the roof and making its way in at the velux..example it could be coming in where the roof is flashed ect..if you take a picture we could start to narrow down some places..if that fails then call in a roofer.

sky6

Make sure it's not getting in along the Ridge Tiles. Check that all the grout along the ridge is in place. I once repaired a roof where the actual leak was 70 feet away from where it actually entered the building. It was a pig of a job took two Men two days work just to find it.

650gs

If Im not mistaking you had pic's up already and the pitch is too low no amount of Tec or water stop will fix this

2012paddy2012

650gs wrote: »

If Im not mistaking you had pic's up already and the pitch is too low no amount of Tec or water stop will fix this

Correct. Why will waterstop not stop it? Surely if the surface is properly covered with this product , it will stop water !? Is that not what it is designed for? Thks for reply

650gs

If you cover the whole roof, the windows, the frames and the flashing it will work but at almost 100 euro for a bucket it would more that likely cost 1,000 euro to do the lot and look s**t.
Sealing a patch where its leaking now will only be a short term solution and long term the roof will have to be striped to sort it also peeling back Tec 7 and other types of sealer will make it harder to reuse and of the original materials.
Bite the bullet and get it sorted once and for all

2012paddy2012

650gs wrote: »

If you cover the whole roof, the windows, the frames and the flashing it will work but at almost 100 euro for a bucket it would more that likely cost 1,000 euro to do the lot and look s**t.
Sealing a patch where its leaking now will only be a short term solution and long term the roof will have to be striped to sort it also peeling back Tec 7 and other types of sealer will make it harder to reuse and of the original materials.
Bite the bullet and get it sorted once and for all

Probably best advice. Your not a roofer by any chance !!

rooferPete

The more temporary repairs you do will only increase the cost because it will make the roof harder to strip, also removes any possible re-use of the materials.

Usually the reason the water comes in around the roof lights is the under felt / breather membrane does not follow through and any water entering from higher up will find the weakest point which is usually at the back of the roof light.

As time moves on and more water tracks across the underlay it will wear and more holes will develop leading to more leaks.

Sealants have their place in the market just like the tube products (T7 silicone etc) they are never long term solutions.

As a roofer I would not be inclined to remove tiles from around the Velux flashings that have been sealed with T7 as there is every chance that I could have a home owner trying to claim that I caused more leaks while carrying out the survey.

You may need to consider the best way to keep your roof lights, you can use a kerb which will probably give you less light than you have at the moment or replace them with new roof lights that sit tighter to the new roof deck.

The price that you were quoted appears to be very competitive.

2012paddy2012

rooferPete wrote: »

The more temporary repairs you do will only increase the cost because it will make the roof harder to strip, also removes any possible re-use of the materials.

Usually the reason the water comes in around the roof lights is the under felt / breather membrane does not follow through and any water entering from higher up will find the weakest point which is usually at the back of the roof light.

As time moves on and more water tracks across the underlay it will wear and more holes will develop leading to more leaks.

Sealants have their place in the market just like the tube products (T7 silicone etc) they are never long term solutions.

As a roofer I would not be inclined to remove tiles from around the Velux flashings that have been sealed with T7 as there is every chance that I could have a home owner trying to claim that I caused more leaks while carrying out the survey.

You may need to consider the best way to keep your roof lights, you can use a kerb which will probably give you less light than you have at the moment or replace them with new roof lights that sit tighter to the new roof deck.

The price that you were quoted appears to be very competitive.

Ever out meath way!!