Flat roof: EPDM

derra

It's time to replace the rubber butyl on my flat roof.
I will be stripping back to the joists to replace the chipboard and insulation.
As of now, my thinking is that the cappings will stay and help keep the new membrane in place.
I wouldn't be crazy about putting stones back on it, but if necessary i would to keep it down instead of using adhesive.
It measures about 12ft x 14ft including overlapping.

Firestone Rubber Cover seems to be a popular choice.

I was just wondering about any other alternatives to Firestone that is available in Ireland.
One i might check up on is Hertalan Easy Cover which could be more expensive than the Firestone. Anyone used it?

So if anyone has done it, i would appreciate any tips regarding materials used for all aspects of it. Membrane, adhesive, insulation boards etc

That is how i am thinking of doing at the moment, i could also put felt down but just wanna see if there any tips or advice before deciding which way.

listermint

I follow this fella on YouTube. I think be did a solid job on his EPDM including finishing. I'd lose the cappings you have tbh. They will add nothing to a correctly fitted EPDM.


https://youtu.be/D352E7v6fUI

He also has a video on insulation of the roof 2 video prior to this one.

derra

listermint wrote: »

I follow this fella on YouTube. I think be did a solid job on his EPDM including finishing. I'd lose the cappings you have tbh. They will add nothing to a correctly fitted EPDM.


https://youtu.be/D352E7v6fUI

He also has a video on insulation of the roof 2 video prior to this one.

Thanks for the reply.

If i do go ahead, it's possible i could lose the cappings. They have held in place what's there now for so long that i think of them as my safety net. The more videos i look at including the one you posted is when i feel all the more confident getting stuck into it.

It's videos like this that i am really looking into, the detail at internal corners as well was the water outlet through the parapet wall.

https://www.youtube.com/watch?v=mPe9_UvYVWc

https://www.youtube.com/watch?v=zXgjm6Rbbgw

jack of all

The stone chippings are there to provide protection from UV radiation, the alternative is using a solar reflective paint (aluminium paint). Certain PVC membranes and glass fibre don't need any additional UV protection- bitumen based membranes, asphalt and the like will need UV protection.

Irish_peppa

jack of all wrote: »

The stone chippings are there to provide protection from UV radiation, the alternative is using a solar reflective paint (aluminium paint). Certain PVC membranes and glass fibre don't need any additional UV protection- bitumen based membranes, asphalt and the like will need UV protection.

I was always curious why there were stones on old flat roofs i assumed it was a decorative touch:D
Has that practice ended? very rare to see nowadays

Lumen

Irish_peppa wrote: »

I was always curious why there were stones on old flat roofs i assumed it was a decorative touch:D
Has that practice ended? very rare to see nowadays

Back in the 1980s my dad had a house in the UK with a flat roof extension with a bitumen (tar?) roof. He used it for sitting out in the summer (nobody gave a sht about falling off roofs in those days), but had to be careful as when it got too hot it softened.

I don't recall ever seeing gravel on a flat roof in the UK.