steel sheet house roof - how is it done?

[MrA.G.]

I'm doing something similar atm and the buildup from the top down is;
Single skin cladding
20mm air gap
Breathable membrane
Purlins packed with rock wool
Plaster board ceiling

 

[S J H]

Is that classed as temporary @MrA.G. ?

 

[MrA.G.]

Is that classed as temporary @MrA.G. ?

Yes, I made a steel truss for it to sit on so by removing 6 thunder bolts and lifting either end it could be in the air after 20minutes.

 

[FonterraFarmer]

@FonterraFarmer
@JDkidd
Or any other kiwis

Battens under building paper ( if your lucky) then corrogated iron/color steel is either nailed on with lead heads or spring head nails but now more commonly srewed on. Oh, the noise from heavy rain be no problem , just wear ear muffs.Also best not painted, if the paint applied incorrectly/to thick moisture gets under the paint and causes corrosion. Picture to follow....the last one has leadhead nails, and that roof has been there for fifty years, "what do you know about lead?"

 

[newholland]

Thanks for the ideas so far....

@elub what is the down side / catch to not getting a house passed under building regs?..... what happens when you want insurance?

 

[multi power]

Thanks for the ideas so far....

@elub what is the down side / catch to not getting a house passed under building regs?..... what happens when you want insurance?

Be fine till you want to sell it

 

[newholland]

Thanks for info so far....

 

[Tinman Steels Ltd]

Hello,

Can anybody help me please:
.
........how do you go about fixing agricultural style corrugated steel cladding in place of roof tiles on a normal, new house build?

How do you insure condensation does not form under the steel sheet? - or do people actually use composite steel sheet and just rest the bonded insulation on top of house rafters and tech screw straight through into the rafters / plywood skin?

Could anybody give me a link to a diagram showing the correct lay out of materials required to fit box profile cladding to a modern timber frame house roof and pass building inspection successfully.

Thank you.

Hello Newholland

We have had a number of customers do exactly what you are thinking about, with really good results most tend to go as Mr A.G has said, some will go for the anti-condensation backing on the sheets which we can do on the Box Profile and Tile effect to give piece of mind, I know one customer rather than using rock wool fixed the single skin onto the purlins then noggin between the rafters leaving an air gap boarded it and sprayed it with blow in insulation, I don't have any inside pictures but sure I have a few outside views which in my option can look really good. I'll have a dig through some of our customer pictures see if I can see more if I do I will add them to the tread. When it come to fixing the sheets its just as we advise for fixing the sheets to any barn/out building. Purlins either metal or timbre with sheets fixed to them with tek screws, stitcher on overlaps and flashings and mastic tape between the the two sheets at the overlap. We have a downloadable fixing guide on our website.

I cant find the picture I really want to upload I think it maybe on our old network hard drive but will see if i can get it where the customer had the roof vaulted on both side this picture is not the one I am looking for but gives an idea of the concept

This is just a local bowling clubs meeting/ getting away from the other halfs man den but shows the concept of what can be done.

James Tinman Steels Ltd

 

[Muck Spreader]

Our house currently has an asbestos/fibre cement roof which is about 45 years old now and coming to the end of it's life. When they originally installed it they just put 40mm expanded polystyrene sheets under it, we added a layer of rockwool to improve the insulation about 9 years ago and it's been an outstanding maintenance free roof. Looking to replace it in the next few years with a metal tile effect sheets with approx 100mm of bonded insulation. It makes me wonder why they still bother with tile or slate roofs on new builds nowadays.

 

[Tinman Steels Ltd]

From talking to a lot of eastern European builders apparently in parts of Poland most of the houses are clad with the Tile effect it's relativity cheap and easy to install compared to traditional tiles and is alot lighter to boot, and if you ever need to replace a sheet its just a case of unscrew replace and re-fix. If its used there insulation can't be a problem last time I went to Prague ( yes I know its Czech Republic ) it was -18° when I landed and warmed up to a t-shirt friendly -14°.

 

[newholland]

@Tinman Steels Ltd thank you very much for that information and pictures - if we go ahead, we shall give you a chance to quote for the sheets.

 

[newholland]

I am quite impressed - TFF has knowledge in all directions! I only posted as a last resort and should have got on here to start with!

 

[two-cylinder]

Hope you're not in a conservation area?

 

[newholland]

I agree the planners would not let you roof Stonehenge in galvanised sheets for sure.

 

[two-cylinder]

Like for like about here, or better.
Any changes must be viewed as an improvement or won't get approval.

 

[newholland]

@Tinman Steels Ltd what is the exact grey colour of the steel flashing on the top corner of the house building please?

 

[rob1]

I agree the planners would not let you roof Stonehenge in galvanised sheets for sure.

well not the stones but the visitors centre looks just like some scaffolding with a tin roof its the ugliest building in the world and must be an ice box in winter, effing disgrace

 

[FonterraFarmer]

I agree the planners would not let you roof Stonehenge in galvanised sheets for sure.

At least a pile of rocks with a tin roof would still look better than a pile of rocks.

 

[rob1]

At least a pile of rocks with a tin roof would still look better than a pile of rocks.

google stonehenge visitor centre and have a look at how horrible it is, Government quango at its best, visitors have to queue up in a wind tunnel, hardly a glowing example of Britian at its best

 

[bobk]

From talking to a lot of eastern European builders apparently in parts of Poland most of the houses are clad with the Tile effect it's relativity cheap and easy to install compared to traditional tiles and is alot lighter to boot, and if you ever need to replace a sheet its just a case of unscrew replace and re-fix. If its used there insulation can't be a problem last time I went to Prague ( yes I know its Czech Republic ) it was -18° when I landed and warmed up to a t-shirt friendly -14°.

Good info , could you fit velux windows in the sheets?