Is this lead where Dormer meets Roof installed wrong.

anotherquestion

Hi folks,

A few things to run past you folks if that is ok.

1 Getting a few things done to roof and had a roofer around today, he has told me that the lead where the dormer meets the roof is installed wrong, it should be on top on slates on roof side rather than under the tiles, is this correct? (though he hasn't said if I get him to do job he would correct this)

If it should be as he has said then what would hold the lead in place to get it from being blown off during a storm.

2 To sort out a number of Eve support trays along bottom length of house that have been fitted incorrectly (felt was put underneath rather than on  top, house is about 8m long) and apply some felt to roof where there was a leak, he has quoted a figure of £700, says it will take a day for himself and his work mate to do. My experience in the past has been with tradesmen when some say a day, it can be usually done in maybe 5 hours or so.

What is your opinion of this quote. here is a picture of the existing lead,

grumpy_codger

1. IMO, this can be done either way and how it is done is better for your sort of tiles. I don't see any problems.

 

2. IMO, 8m is a biggish job, especially for a 2-storey house without scaffolding.

stuart45

With single lap tiles like yours the flashing should be on top.

grumpy_codger

stuart45 said:

With single lap tiles like yours the flashing should be on top.

Is it just 'should' or there is any reason behind?

anotherquestion

Thanks for replies, if lead is on top, how is it really secured I wonder, at least the tiles seem to hold it in place as it can get very windy at back here.

EssexExile

I don't know if it's right or wrong, but the way it is looks like it should work fine.

stuart45

grumpy_codger said:

stuart45 said:

With single lap tiles like yours the flashing should be on top.

Is it just 'should' or there is any reason behind?

Lead soakers need to be laid on a slate or tile. This can only work with double lap tiles. On a single lap tile there's nothing under the soaker to hold it properly.

stuart45

anotherquestion said:

Thanks for replies, if lead is on top, how is it really secured I wonder, at least the tiles seem to hold it in place as it can get very windy at back here.

It's dressed over the profile. It's the way it's done for pantiles and other single lap tiles. I've cut an paste this for you.

Traditional soakers are used with double lapped products such as plain tiles and slates. They are not suitable for use with single lapped tiles because they would not be supported under the tiles.

A soaker is placed between each tile headlap and is fully supported on the tile below. The length of a soaker is equal to the tile gauge + headlap + a short turn over the top of the tile; typically 100 + 65 + 25 = 190mm. Each soaker extends 100mm over the tile and 75mm up the wall. The soaker upstands are covered using a step flashing as described earlier.

ComicGeek

anotherquestion said:

My experience in the past has been with tradesmen when some say a day, it can be usually done in maybe 5 hours or so.

5 hours work plus travelling to and from the job, plus picking up materials, plus disposing of rubbish at the end - that IS a day!! Working for 5 hours on a roof in winter is hard work too.

You will probably find that the rate for 5 hrs is the same as the day rate anyway, as they can't get to another job after/before yours anyway.

The existing leadwork is wrong, it should be lapped over those tiles.