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Shed roof question

Discussion in 'In the Garden' started by Cockneyuk, 23 Jan 2021.

  1. Cockneyuk

    Cockneyuk

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    I inherited a shed when I moved house, larger than I could afford to either buy or build and I'm keen to keep it standing. I just went in and discovered the ceiling is damp and I have a small, maybe 6" split in the felt where they guy who built it has pulled it tight on a 90deg angle at the edge. I've covered that with some sealant till I can fix it properly in the spring when its dryer but I can now see he's put a tarpaulin under the roofing felt, is this normal or recommended ? He's used tongue and groove for the roof (thats what he cladded the shed with as well which will be replaced with feather edge) its not dripping wet inside but the knots are very dark which they were not when I was doing some work in the autumn and it feels damp to the touch.
    If its ok ill just patch the edges in the spring as the rest of the felt is in great condition and would certainly be easier but not at the expense of it creating a problem. Depending on who you speak to the guy wo used to live here either bodged everything or was belt and braces.
     
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  3. ETAF

    ETAF

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    Is the roof outside felted ? or just T&G ?
    Maybe post a picture or 2
     
  4. Cockneyuk

    Cockneyuk

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    Yes the roof is fully felted. I believe the guy who built it just pulled the felt too tight on the corners which has now caused the split along the edge. I probably won't be able to get out again today to take a picture due to mobility issues but I can certainly try tomorrow. This is why im asking about the tarp under the felt, in a couple of years I won't have the health to fix it so if its a problem waiting happen I need to deal with it this year.
     
  5. Malakym

    Malakym

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    How old is the felt? It's probably worth replacing the lot.
     
  6. Cockneyuk

    Cockneyuk

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    About three years, the rest of it looks perfect
     
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  8. scbk

    scbk

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    If you want a good long term solution then ditch the felt - rubber roof or corrugated metal/box profile.

    I've never put on a rubber roof, but done plenty of metal, and that has a life expectancy of 40yrs or whatever.
    Good quality felt is more like 10-15 yrs if done well

    If it was me I would just patch up the old felt for now then redo the roof properly in a couple of years
     
  9. Cockneyuk

    Cockneyuk

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    Thanks, yes I have looked at the rubber alternative and it looks good.
    So the tarpaulin he’s put under the felt isn’t anything I need worry about then?
     
  10. Luckyphil

    Luckyphil

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    The Felt has more than likely torn, due tu it be tight on the edge & being a standard type Shed felt , I refelt quite a lot Of Shed Roofs and if you go for the Standard Roofing Felt you can
    Normally Rip even new Felt , I’d recommend you strip it right off , check out for any damage to the Timbers , then replace with something like wickes Super 15 year felt , you have to cut this with a Knife or heavy duty Scissors , maybe consider using a Jointing Overlap
    Bitumen on the joints ( overlap them at least 200mm )

    cheers

    Phil
     

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  11. Peter GEE

    Peter GEE

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    I have a shed roof with felt on it but would like to add some form of adhesive up under the felt between the nails using a mastic gun and nozzle. Any ideas what adhesive I can use that comes in tubes I can fit in a mastic gun?
     
  12. DIYnot Local

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