Cheapest vs best garage roof

greensalad

Thought I'd come back and update. 

I got the quote for steel roof. It's plastic coated steel with a felted underside which apparently helps with condensation. He said that 10 months of the year it should be completely dry and then when it's really cold and wet the felted layer will feel damp to the touch, but shouldn't drip. I guess being in the South East we tend to have a bit warmer and drier conditions here. 

The quote came back as £1250 + VAT for the roof with guttering across the back and a down spout angled appropriately for a water butt. 

Asbestos removal, wrapped (not smashed) and with a consignment note provided was £260 + VAT. 

The quote above was if I did it with my neighbour at the same time, as he said it's a bit less work for handling the join between our rooves and also bulk purchase of materials. He said if I just did mine, it'd be £1470 + VAT. 

So basically £1,562 or £1,787 for a steel roof, or £2,200 if I went for felting. Seems obvious which. The steel roof looks quite nice (one of my neighbours has it). 

Going to wait until my neighbours are back from their holiday and propose it to them. 

Section62

greensalad said:

So basically £1,562 or £1,787 for a steel roof, or £2,200 if I went for felting. Seems obvious which. The steel roof looks quite nice (one of my neighbours has it).

That sounds about the amount less than felting I would expect.  The asbestos removal quote is worryingly cheap (IMV), but if they are promising to do it properly and with the correct paperwork then you'll be getting a nice bargain, as well as a nice new roof.

The points about being more economic if they do both garages together are all valid.  Hopefully the neighbour will see it that way too.

greensalad

Section62 said:

greensalad said:

So basically £1,562 or £1,787 for a steel roof, or £2,200 if I went for felting. Seems obvious which. The steel roof looks quite nice (one of my neighbours has it).

That sounds about the amount less than felting I would expect.  The asbestos removal quote is worryingly cheap (IMV), but if they are promising to do it properly and with the correct paperwork then you'll be getting a nice bargain, as well as a nice new roof.

The points about being more economic if they do both garages together are all valid.  Hopefully the neighbour will see it that way too.

Bear in mind that the asbestos quote would be doubled for the full garage, so I guess it's really £624 for full removal. Considering the panels are in pretty good condition I wonder if that impacts the cost at all.

He said often he does a roof for one person and then the neighbour sees how good it looks and gets jealous! We are the last two garages on the close to not have been revamped (mine is worse, because the garage door is also the original one, that's the next job) so it would definitely be nice to have them redone and revamp our corner of the close.

ThisIsWeird

Great result, GS. Your neighb would be nuts not to go for this.

From an installer's pov, the main pro of the metal sheeting is speed and simplicity. The materials might cost more, but labour time is cut right down. Still surprised it's cheaper! What a result

Photos when done, please.

plumb1_2

You can also buy insulated steel sheets.

greensalad

plumb1_2 said:

You can also buy insulated steel sheets.

I'm pretty sure that's what this is. It has a thick felt layer on the underside.

ThisIsWeird

They're not so much 'insulated', but designed to handle the condensation as they explained. Rarely should it be a problem, especially if the garage is draughty!

Section62

greensalad said:

plumb1_2 said:

You can also buy insulated steel sheets.

I'm pretty sure that's what this is. It has a thick felt layer on the underside.

No, the usual felt is designed only to absorb/retain condensation to prevent it dripping off.

See my reply to Rusty190 on 6th January.  Anti-drip/Anti-Condensation felt has no appreciable insulating effect.

The alternative plumb1_2 is referring to is where the steel sheet is coated with a much thicker layer of foam (typically polyisocyanurate) which is enough to provide effective insulation.

If the product you are being advised to use is "thick" felt I'd suggest doing some more checks on it.  The idea of the anti-drip felt is it is thin, so when the temperature warms up the collected moisture can easily evaporate away.  Thick felt could retain moisture for longer, and possibly pose a corrosion risk.

Niv

greensalad said:

Thought I'd come back and update. 

I got the quote for steel roof. It's plastic coated steel with a felted underside which apparently helps with condensation. He said that 10 months of the year it should be completely dry and then when it's really cold and wet the felted layer will feel damp to the touch, but shouldn't drip. I guess being in the South East we tend to have a bit warmer and drier conditions here. 

The quote came back as £1250 + VAT for the roof with guttering across the back and a down spout angled appropriately for a water butt. 

Asbestos removal, wrapped (not smashed) and with a consignment note provided was £260 + VAT. 

The quote above was if I did it with my neighbour at the same time, as he said it's a bit less work for handling the join between our rooves and also bulk purchase of materials. He said if I just did mine, it'd be £1470 + VAT. 

So basically £1,562 or £1,787 for a steel roof, or £2,200 if I went for felting. Seems obvious which. The steel roof looks quite nice (one of my neighbours has it). 

Going to wait until my neighbours are back from their holiday and propose it to them. 

Worth clarifying that this includes you receiving a copy of the completed part E of the HWCN (Haz waste consignment note).