New flat roof for the kitchen

[chunkylover53]

Hi
I have just had a new flat roof fitted for the kitchen. The original building was built in the 1970s.

A torch-on green slate top sheet was used and torch on underlay was also used.

Already, when the sheet is brushed, tiny pieces from the top sheet are becoming loose and coming off. No protection overcoats etc are present and the roof is roughly a week old.

What should I use regarding protection for the flat roof in the long run (eg chippings, painting etc)?

Thanks

 

[Alastairreid]

If it is a mineral cap sheet then you need no other additional solar /uv protection.
Why are you brushing it?

 

[cotswoldbuilders]

Its to be expected, no need to brush it, or paint anything on.

 

[noseall]

Bits of the mineral will flake off, it is expected.

If the roof is within x metres of the boundary then the covering should be fire resistant etc.

Also, did the roofer install any insulation?

 

[^woody^]

I can't imagine why anyone would be up there brushing a new roof, but if you need to, then avoid using a wire brush, and stick to a soft broom

 

[chunkylover53]

So am I right in thinking there is absolutely nothing I can do to make the roof last longer like roof chippings etc?

 

[hardmetalking]

Didn't you get a 25 year guarantee with your new roof?

 

[joe-90]

So am I right in thinking there is absolutely nothing I can do to make the roof last longer like roof chippings etc?

Yes. You can stop brushing the protection off the bloody thing and get a life.

 

[Alastairreid]

The mineral surface on the felt negates the need for any additional protection.

Surface Protection

Built up felt roofs require a protective surface to prevent damage by UV radiation (solar) damage, human traffic and other impact.

Because asphalt is a natural product, it has a life span and the purpose of the finish is to delay degradation.

UV-rays in sunlight would otherwise have the capacity to oxidize the roof surface and cause the plasticisers to leach out causing the asphalt to become brittle and more prone to blistering and cracking, which can cause water leaks.

Top felt layer flat roof options include:

Stone chippings bonded in a non bituminous compound.
Mineral finish e.g. fine sand, green mineral aggregate or small slate flakes or sand bonded in a non bituminous compound.
Reflective paints which require re-application every 3 to 4 years.

http://www.k-roofing.co.uk/systems_materials/roofing_felt.htm

 

[Alastairreid]

So am I right in thinking there is absolutely nothing I can do to make the roof last longer like roof chippings etc?

Yes. You can stop brushing the protection off the bloody thing and get a life.

An explanation of the purpose the mineral cap sheet is serving would be a more constructive answer to the op joseph...Your right though