fixing shed roof

getmore4less

A pic of the in/underside would be useful

If you can be bothered.

I would strip it back of all old materials, felt, rotting wood review the bent stuff and rebuild/replace/repair the roof structure so it is sound and flat ready for the EPDM.


I went with coroline on mine, the boards were rotting sodden so the lot came off and new battons installed for the coroline.


The shed flexing has opened up some the nail holes can see light but seems to stay dry, I have some sealing compound that will go on this summer when shed gets a service, a bottom corner may have rotted and there may be a bee/wasp nest under another so it's everything out and a good look, I set it too close to the fence so not easy to get round the sides.

next one/time its EPDM.

andrewf75

Thanks, I will upload some pics when I get a chance, but its structurally pretty sound apart from 2 boards which have got wet. Seems overkill to rip the whole lot off and probably beyond my DIY skills.

AndyMc.....

andrewf75 wrote: »

So I've noticed that the shed roof is sagging a bit, which may have been causing the water to pool and get through the felt where it was nailed. I'm going to replace the 2 slightly rotten boards (these I now know are tongue and groove), but that won't really fix the sagging. Will I be OK to replace those and put EPDM on without fixing the sagging? Looking at it the pooling must be very minimal and it obviously won't be getting through the rubber.

Should be fine, I couldn’t remove all the sag from mine and it’s not been a problem.

andrewf75

Ok here is the roof. You can't even see the sag to be honest. As above am sure it will be ok as it won't pool enough to overload the roof if at all.

seatbeltnoob

andrewf75 wrote: »

Ok here is the roof. You can't even see the day to be honest. As above am sure it will be ok as it won't pool enough to overload the roof if at all.

bad choice for roof structure. the roof beams should have been run short ways. but because they were clad the short ways the beams needed to be long ways.

me being a perfectionst it would irk me to see the sagging roof and id redo it with proper supportive roof beams and plywood

andrewf75

seatbeltnoob wrote: »

bad choice for roof structure. the roof beams should have been run short ways. but because they were clad the short ways the beams needed to be long ways.

me being a perfectionst it would irk me to see the sagging roof and id redo it with proper supportive roof beams and plywood

Thanks, shed was bought by previous owners, no idea where it is from. Imagine they bought rather than built it though.

I won't be irked by a slight sag in the roof as long as it doesn't leak! Do you think replacing the rotten boards and sticking some EPDM on top will be OK (for a non-perfectionist)?

This is just a shed to store my mower and other stuff.

seatbeltnoob

It's fine to do that, makes sure the big beam isn't rotten, that's the most important bit. The WBA (water based adhesive) used to glue the EPDM to timber may not adhere to the timber if it has residue of the felt adhesive. I remember when I did my shed that the roofers suggested putting a new board on the roof to give it a clean face for the timber to adhere to.

andrewf75

Just bumping this thread again with another question. Clearly I still haven't got around to starting this...

Trying to source a cheap offcut of EPDM. Now I'm wondering do I really need to glue the EPDM down or can I get away with just holding it down on all edges with the battens screwed in? Shed is right at the back of the garden not in sight so looks not important.

Thanks!