Roof Felt in Loft

[geewhizza]

Went up the loft last week and discovered that some of the roofing felt(under the tiles) is ripped, so ive been out and bought like a glue that looks and probably is bitumen and like a black tape, you paint around the rip with it allow it to go tacky then put the tape over it....ok all done..this was recommended by a diy shack

Just been back up and its hanging off.any other suggestions on repairing this.

Thanks

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[shazzbat]

If it's been hanging off any length of time it will have taken a 'set' in that position, i.e. it wants to stay there. I would do what you did before, but cover a wider area with your adhesive and tape, get a good overlap, and prop it in place with lengths of wood until it all sets, or until next winter. don't be tempted to remove them if you can avoid it.

HTH

Steve

[Andrew Gabriel]

I can't imagine this working. Lofts get very hot (mine has been running at 45C in the sun). I don't think bitumen is going to be able to glue anything at that temperature which has even the smallest force trying to pull it apart.

Providing water isn't coming through, a small number of holes in the felt isn't going to matter. Indeed, it may be providing the loft with its ventilation. It does mean that if you get a cracked or slipped tile, then water will leak in rather than running down the felt, but as water running down the felt will rot it anyway, that's just a time issue. (There are better replacements for roofing felt nowadays, and one property of them is they are tear-proof.)

[keith_765]

Materials and tools required.

1 piece of underlay felt bigger than the tear hole (NOT MINERAL NOT FLAT ROOF TYPE ) Stanley knife 2 lengths of thin lath Screws or nails 25mm -35mm

Method

Cut the underlay 200mm wider than the inside edges of the rafters. 50mm below the lowest part of the tear in the underlay, cut across in a horizontal line. thread the bottom end of the piece of new underlay down over the old felt, leaving equal side at 100mm. with one of the strips of lath fix this to the side of the rafter pinning the new underlay to the rafter and tight up to the back of the tile lath, repeat with the other side.It will be necessary to slit the new underlay at the bottom end at the side 50mm up to slip the underlay on top of the horizontal cut in the old felt.

Keith

[geewhizza]

Thanks for the replies sorry in the delay in thanking was on a short holiday.

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