Roof Tile

Li0nhead

KellyWelly wrote: »

I was about to post a very similar thing - the wind has brought down one ridge tile on my roof and when my dad had a look he said there are another two or three that need re-pointing or replacing and the cover on the down pipe needs fixing. I got a quote on Mates Rates for £120 for labour only, materials extra, with my dad helping to save on paying another bloke as there needs to be two people to do the job. I also got an estimate from an established local roofing firm for £150-£200 plus VAT materials included which I thought was reasonable but wanted to check with people who are in the know.

Sounds about right. Even at the mates rates labour only rate by the time materials are included your talking £150+. So two fair prices and another taking the !!!!. My advice is take the mates rate or local roofing firms quote as both seem fair and when materials taken into account, about the same price.

Flyfisher_2

Li0nhead wrote: »

Nope. Think, You have for a roof:

wood to form roof.

Felt to cover wood for 1st line of defence.

Above felt as the 2nd line of defence tiles.

Unless your willing to risk the main line of defence which is the felt i would never say do it.

Whatever made you think that felt is the 1st line of defence ?
Felt is a secondary defence against wind blown/driving rain and snow and should not be depended on for water tightness. It will have hundreds of nail holes in it where the battens have been attached to the rafters. The old bitumen felt will crack and perish in time.

herbsmithherbsmith

The tiles are held by battens. The roof is not leaking as far as I know but some of the tiles are splintering at the edges : they have been like this for at least 20 and perhaps much longer for all I know. The house was built in 1930. I had a roof overhaul about 9 years ago and about 2/300 tiles were replaced along with some flashing and hidden gutters.
There is one particular tile that I can see from the road has deteriorated quite badly but as it is on the flank part of the roof over which a ladder cannot be hung (triangular shaped part of roof -end terrace) I wondered whether I could just go up into the loft, pull it out and put a new one it.
Has anyone ever tried this?

Li0nhead

Flyfisher wrote: »

Whatever made you think that felt is the 1st line of defence ?
Felt is a secondary defence against wind blown/driving rain and snow and should not be depended on for water tightness. It will have hundreds of nail holes in it where the battens have been attached to the rafters. The old bitumen felt will crack and perish in time.

!!!!!!!!.

"The old bitumen"

What era are you in?


Ok lets go through this slowly...

Roof put on by joiners....

Felt goes over roof...hence 1st line of defence,

Lath goes over felt held down by nails intro timber...

Tiles nailed into lath as 2nd line of defence.....

:rolleyes:

If you think i have it the wrong way round. Remember the industry i work in is "Construction" now how do you 'construct' a roof?

debbie42

Li0nhead wrote: »

Felt goes over roof...hence 1st line of defence,

Lath goes over felt held down by nails intro timber...

Tiles nailed into lath as 2nd line of defence.....

:rolleyes:

If you think i have it the wrong way round. Remember the industry i work in is "Construction" now how do you 'construct' a roof?

Being a bit OT here, but my understanding of lines of defence is that the first line of defence is that which is exposed to the environment first. So, the tiles would be the first and the felt the second. (edit: i.e. "defence" terminology has nothing to do with the order they are assembled!)

Also, if the OP (herbsmith) has a roof similar to mine (30s house), then any felt on the original roof, if there was any(?) is definitely not present, so I can see where he's coming from, sort of. I can see all the laths and tiles (no felt), and ridges of mortar/cement like substance. My roof doesn't leak (at the moment, anyway!).

ds1980

Li0nhead wrote: »

!!!!!!!!.

"The old bitumen"

What era are you in?


Ok lets go through this slowly...

Roof put on by joiners....

Felt goes over roof...hence 1st line of defence,

Lath goes over felt held down by nails intro timber...

Tiles nailed into lath as 2nd line of defence.....

:rolleyes:

If you think i have it the wrong way round. Remember the industry i work in is "Construction" now how do you 'construct' a roof?

Mmmmmmm do old victorian slate roofs have felt???? nope. Felt does nothing to protect anything. Your tiles protect the roof from leaking not the felt therefore it is secondary. You don't see a roof with no tiles on do you....well not ones that don't cause you to get wet! You do see them without felt though. Have you just got this job in construction. It takes time to build up these skills!

herbsmithherbsmith

I was told that roof felt can impede air circulation in the roof and so is a disadvantage.

herbsmithherbsmith

By the way, saying that roof felt is the first line of defence is like saying the general in a bunker ten miles from the front line is the first line of defence rather than the troops on the battle front-because he was installed in his position first.

Flyfisher_2

Li0nhead wrote: »

!!!!!!!!.

"The old bitumen"

What era are you in?


Ok lets go through this slowly...

Roof put on by joiners....

Felt goes over roof...hence 1st line of defence,

Lath goes over felt held down by nails intro timber...

Tiles nailed into lath as 2nd line of defence.....

:rolleyes:

If you think i have it the wrong way round. Remember the industry i work in is "Construction" now how do you 'construct' a roof?

May I ask what is your trade in the construction industry to start with ?

I think that you should also give Wickes a call to tell them that their roofing felt product description is incorrect.:whistle:

http://www.wickes.co.uk/Slaters-Roofing-Felt/Reinforced-Slaters-Felt/invt/240007


Most houses over 15 years old will have bitumen based roofing felt on their roofs.
The breathable membranes used today were not widely used at that time.