roofing felt for flat roofs

Roofing felt or rubber EPDM for a flat roof ?

Roofing felt Vs Rubber epdm

roofing feltFelt flat roof

The one big drew back with roofing felt these days, Is Health and safety and rightly so…

Almost gone are the days of taking a boiling pot up to a second story roof full of boiling tar then torching all the details up under the eaves with naked flames into the loft space.

With dried wood smouldering under the felt no wonder it can cost a small fortune for liability insurance covering (hot works)

If that doesn’t put any body off, It also only comes in a meter-wide roll that means whatever the size of the roof there’s going to be a lot of joints

I wouldn’t recommend green mineral felt for a balcony either it’s not the best for foot traffic

especially on a hot day in direct sun the Bitumen can melt and be punctured easily,

We have striped & replaced felt roofs that’s been over 30-years old, So… Like anything if its installed properly to start with it can be a very good system but I would make sure it’s at least a

3-layer felt roof system

  1. 3G perforated membrane on primed boards (Icopal Xtra-seal bitumen prima)
  2. A sanded underlay torched on with sealed joints
  3. And a 4mm top layer of mineral felt (cap sheet) this system comes with a guarantee of 18 to 20 years

It really has improved from the older felt roofs which would normally last no longer then 8 to 10-years

Benefits with a felt roof is its relatively cheap been around for a long time

Tried and tested polyester based mineral felts are improving all the time

And installed correctly is a good system with a life expectancy of around 20-years

EPDM rubber flat roof

EPDM rubber roof

Rubber EPDM

100% cured single ply membrane for the roofing industry

made of a synthetic rubber with a life expectancy of over 50-years,

Brilliant on larger areas like commercial or industrial roofs with sheets sizes has wide as 15m and 61m long with no joins

It’s also excellent material for green roof installations on most residential buildings with careful planning their won’t be any joins or weak point

EPDM can be secured with a bonding adhesive to either OSB-3 Sterling board or sheets of plywood

Or directly to some insulation boards for a warm roof installation,

this is a very common option, but the insulation boards must be tissue-faced for this

The main benefit with EPDM there’s no naked flames

its a cold applied system so less risk of fire with most flat roofs going up into the main roofs eaves this can get very dangerous

With all the old dry timbers and sometimes bird’s nest’s

its best to keep flames away from this area of the roof EPDM rubber is cold applied which also makes your public liability insurance cheaper to…

What is EPDM rubber used for?

It’s used for mostly flat or low sloped roofs, green roofs and garden buildings such as summer houses and sheds,

Roofing felt or Rubber EPDM

personally i would have to say rubber mostly because of using flames on the roof,

 

 

 

Audr
Audr
08:16 25 Apr 18
Prompt response, arrived to look at job when he said, gave a thorough account of what needed done, we agreed a price. The next fine day he arrived early with another worker and job done before end of day. Prompt, efficient, professional and reliable. My old cast iron guttering now looks like new and doesn't leak....hurray! Thanks James.
james thomas
james thomas
17:48 08 Mar 18
I have used James and his roof firm twice now and have had fantastic service each time. He is very quick to provide advice and all his work is timely and of a great standard . I would happily recommend and will be using him again in future .
Ed Hagerty
Ed Hagerty
19:31 13 Oct 16
We’ve been restoring a house in Cumbria and over the years we’ve had tradespeople from across the spectrum. I can comfortably say that Jim and his team are in the very top of the list in terms of quality, price and service. They did a flat roof for us, some lead work and a variety of other external work, all of the highest quality. If Jim provides the service, you need look nowhere else. We’d trust him with any job, large or small.
arron weaver
arron weaver
15:01 28 Oct 16
Great price, no hidden costs, professional and friendly service, the results were simply stunning. would recommend to anyone. Thank you to all the team. Great work!
Katherine Massey
Katherine Massey
14:11 26 Mar 15
Jim and Chris recently carried out outstanding work to our fibreglass roof on a listed building. We were delighted with the standard of workmanship, service, communication and the 25 year guarantee. The work was carried out in a timely and professional manner and was also reasonable in terms of cost. We were lucky to get some dry weather and guys that really know what they are doing. Thanks Jim, much appreciated! I will recommend you to family, friends and anyone I come across!
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