Been on about 10 years no complaints from me.
Which felt for new shed?
- Thread starter vw754
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They just require more effort (fixings, purlins etc) when fitting, or else they end up looking like a horses arse, as soon as the sun beats down on them.
Maybe I should of said that the shed roof has a pitched OSB board roof and the corrugated bitumen is screwed to that, otherwise yeh you wouldn’t be able to stand on it espicually this weather as it gets softer. I also added an eves comb
My first use of steel, was for my new workshop roof, which I had not planned on OSB, just bare joists. The steel is able to span those gaps, and is able to be walked upon. When I replaced the 24x12 garage roof, I went onto use the same steel sheet, just on the bare joists.
When it came to building the old summerhouse, 40 years ago, I had screwed timber on the roof joists, similar to floor-boards but without any T&G. I originally covered that, with felt. Over the following years, I often ended up having to refelt, and repair the felt many, many times. Part of the reason for the constant need for repair, was the gales we get up here, birds and squirrels ripping it.
No problems with wind damage, birds, or squirrels since - the slippiness of the steel, and the apex angle, makes it difficult for them to land on it. It is so steep, the only way I could remain on the roof, in a position to bolt it all down, was to use a ladder, with its top end lashed down to a fixing, at the far side.
I've noticed no-one actually answered the o.p.s question.
Or noticed that the24 grammes he refers to is actually 24 KILOgrammes
Or noticed that the24 grammes he refers to is actually 24 KILOgrammes
I think the general consensus is that modern, lashed together sheds are outlived by all but the lowest quality roof covering.
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The OP's original post was rather confused and mixed 250g, which is a weight per area, possibly square-foot with a weight per roll of 24kg for 10sqm; broadly the same, there being about 10sqft in a sqm
The major thrust of the OP's post however, seemed to be concerned with longevity, so the discussion turned to more durable roof coverings
My answer to the OP was to use rubber rather than felt, as an off cut is a similar price and it's more durable. Steel will perhaps be up to double the price of rubber, based on what i turned up when pricing a job recently and they're a bit more ungainly (for delivery purposes), coming in 3m x 1m sections in 0.5 to 0.7 mm thicknesses, and need better tooling to work with. Not sure I'd go for the 1.3m x 0.5m packs of 0.25mm sheets that seem to flood eBay/amazon
Sure, a felt roof might outlive the shed it sits on, but a rubber or steel one is far more likely to. If the OP is hard set on felt, they will probably end up re felting before the shed expires.
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If the OP were to source from a manufacturer of the steel sheets, rather than a reseller, he would be able to order what ever length he wants, ready to fit, and at less cost, with no waste, ready sized to fit. Alternatively, if the OP needs to really save money - FB market always has lots of reclaimed sheets for sale, but they would need cutting to size. The sheet is very easy to cut, the manufacturers suggested method is to use a scissor action cut - basically tin snips. The scissor action, they suggest, smears the galv coating over the cut edge, to protect it from rust. I had to cut a corner off, and there is no sign of the cut edge rusting.
The sheet, begins life as a roll of steel, before entering the folding machine, and they just preset how long they want the lengths. My garage roofing sheet layout, worked fine with standard length sheets, which could be adjusted to match, because they overlapped. The workshop roof, I used full length sheets, designing the roof to fit the standard sheet lengths. When it came to the already built summerhouse, I ordered the panels to custom size, direct from a manufacturer.
The latter, used one single section sheet, from apex, to gutter, and was actually cheaper doing it using custom sized sheets, than buying standard sheets, from local suppliers. I just indicated the colour finish, the length, and the number I wanted, and they quoted me the cost, delivered. I posted the details of the company on here around 2 - 3 years ago.
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