Edpm, OK to glue before fascia?

[Wils81]

Had my edpm turn up along with my fascias and soffits delivered. Fascia has a big crack, apparently caused by forklift. Was planning on getting my epdm stuck down tomorrow as the weather is about to turn cold down south. Is there any reason why I can't do this without having the fascia on first?Assuming I can just leave it overhanging and then fix fascia once it's been replaced and maybe run contact adhesive on top of fascia, although with the trims I assume it will be held pretty tight anyway
TIA

 

[Wils81]

Apologies. Flat, garden room roof, osb t&g, timber frame

 

[Wils81]

Cap over upvc fascia, so has a timber fascia on at the moment, (7x1)

 

[phatboy]

Sounds unusual, the EDPM would terminate within the drip trim. The fascia would be below that, and about 25mm further in....

 

[Wils81]

As it currently is, I have a overhang all around and a timber 7x1 fascia (I have 7x2 roof joists). Osb has been laid and flush to all edges. If the upvc overcap fascia was here and put on first, would it not just fit flush with top of osb roof and then the rubber would get glued to the top and hang down? Obviously then pinned into the roof edge trims that have been sent with it?

 

[phatboy]

As it currently is, I have a overhang all around and a timber 7x1 fascia (I have 7x2 roof joists). Osb has been laid and flush to all edges. If the upvc overcap fascia was here and put on first, would it not just fit flush with top of osb roof and then the rubber would get glued to the top and hang down? Obviously then pinned into the roof edge trims that have been sent with it?

I guess so, it seems there is no gutter then? In that case water will run down the fascia and against the side of the building, which isn't good news. A drip edge / trim is always pretty important.

I'd also not want to trust glue on the top if a thin piece of fascia as the only method to stop water getting in - the slightest glue failure and driving rain will find a way in, and saturate your wooden fascia, and then the wall below.

Unless I've completely got this wrong... a picture would help

 

[Wils81]

Thanks for replying. There will be a drip and kerb edge. Basically my fascia is damaged and is being redelivered in the next day or so. I took today off to fit the roof before realising the damage. So the main question is, as the trims fit on top of the fascia, can I glue rubber down and fit the trims after?

 

[phatboy]

Thanks for replying. There will be a drip and kerb edge. Basically my fascia is damaged and is being redelivered in the next day or so. I took today off to fit the roof before realising the damage. So the main question is, as the trims fit on top of the fascia, can I glue rubber down and fit the trims after?

Good that there will be drips and kerbs.

Yes glue the rubber down over the whole roof. If you have excess rubber where the damaged fascia will go, bang a few clout nails as far down the wood fascia as you can to seal it all up, and when the drip goes on that rubber will be cut off. Don't contact glue the edge for now, its a sh1t to get off the back on the rubber after.

 

[Wils81]

Great, thanks mate. So maybe leave the contact adhesive edge bit,, think it's meant to be 100mm isn't it? I'm just worried about it getting too cold for the glue but I think that's mainly the water based stuff for the non edge parts isn't it?

 

[Notch7]

Great, thanks mate. So maybe leave the contact adhesive edge bit,, think it's meant to be 100mm isn't it? I'm just worried about it getting too cold for the glue but I think that's mainly the water based stuff for the non edge parts isn't it?

get the EPDM laid out as soon as you can -the longer it can relax the better

I took my Henry up on the roof and thoroughly vacuum flat roof and EPDM to get rid of any dust, then I used the water based glue on both as it I found it stuck much better

if you leave the EPDM oversize you can use some timber offcuts and a few screws and fix it temporarily down the sides

I used a Karnedean roller to get the EPDM down, they are great for the money

https://www.amazon.co.uk/Extendable-Roller-Floors-Karndean-Flooring/dp/B004FM9C9Y/ref=asc_df_B004FM9C9Y?mcid=78b1a5eb13e333f2928577f5c28a9cd1&tag=googshopuk-21&linkCode=df0&hvadid=697319870804&hvpos=&hvnetw=g&hvrand=18437577631734092843&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9193689&hvtargid=pla-700939717671&psc=1&gad_source=1

 

[phatboy]

Great, thanks mate. So maybe leave the contact adhesive edge bit,, think it's meant to be 100mm isn't it? I'm just worried about it getting too cold for the glue but I think that's mainly the water based stuff for the non edge parts isn't it?

Yes 100mm is whats recommended.... I applied using a 4" foam roller. I'd just keep the contact adhesive in the house, and run it out when you do the work, and you will be OK.

@Notch7 picked up my mistake - yes nail through a batten on the overhanging excess rubber, nails alone will pull through - my bad.