How not to a Roof New Extension

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Some time ago I posted a picture showing the contractors first roofing attempt (the lower image) with plain tiles that actually had a backfall, I though you may be interested in what some seem to get away with as the final product had tiles with maybe a couple of degrees of fall as the roof pitch itself was so small. Not a tidy verge either.

Roof2.jpg
 
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I agree but probably only when the wind is blowing at it. If they are lucky the "felt" will carry away what gets through. It has been on for a few years now and I do wonder if any leak has occurred. The same company also failed to match the pitch of the main roof which has sprocketed eaves so they were unable to bond the plain tiles in.

 
Nightmare!!

How do you choose a decent roofing company? I need a big job doing but dread hiring cowboys.

No one I know has had anything similar done so I have no recommendations. I chose the wrong form to do the drawings and don't want to make that mistake twice.
 
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It depends on what you mean by a big job. Like everything in construction you need a good foundation to start with so in the case of the roof you need the right structure. A decent builder should have the knowledge to do the structure before bringing in his preferred roofer. Or if a small job he may do it himself. Also note not all roofers do all roof work. A specialist flat roofing company may stick to just that, while a tiled or slated roof is often done by different tradesmen. In the absence of recommendations look up a few roofers and visit their base to look at their yard. As a rough guide the good ones will have a tidy yard with materials neatly arranged. If the yard looks like a tip keep looking.

In the example I posted I think the builder did it himself and to add the builder was not so hot either! - The designer was crap by not specifying the roof system for such a low pitch. In short the job was probably done on the cheap. I would image the building inspector for the regulations was also crap or corrupt as I don't see how one could sign the job off with the low pitch roof as it was.
 
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I know plenty of roofers that are first class tradespersons that don't have yards as such.
Your best option is to look around, chat to people having works done. Even ask at roofing merchants for key account holders names...
Ask questions, fast answers are a good sign.
 
I agree with datarebal that plenty of good tradesmen don't have a yard, but you need to speak to people where the work is finished and known to be good. Unfortunately the way some bad un's get their work is people see work in progress and ask "can you do mine" assuming they are OK! - This very nearly happened with the example I posted. Fortunately the person that wanted the work doing knew me and asked about them (They already had the quote from them!).
 
What I need is a 5.6mtr steel ridge beam installing so the hipped roof can be extended 3mtrs over an existing double extension (currently flat roofed). Then 2 pitched roof dormers building into the back before it all gets covered in new tiles.

I've asked for 2 quotes and neither of the guys turned up.

Installing the rsj would be very similar to doing a hip to gable conversion.
 
Ian,
You need a Building Contractor not a roofer. Best to let the contractor sort out the tiler.
 
There is a house on the next street that looks to have had a recent reroof and dormer. I might ask them who they used and if they were happy with them.
 
we carried out a reslate of a large conical turret roof over looking the beach on the south coast. The building was a holiday home for +++++ A few months after the job was completed I notice another roofing contractor had put their sign board on the garden wall!

Moral-- check you are talking to the correct contractor.
 

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