Felt flat roof replacement, building reg advice please

Doesn't require building regs.

Don't put felt, get a quote for glass fiber. Looks much better and lasts a lot longer

 

Correct that if you replace more than 50% you are required to upgrade to current regs. Just checking though, is the space heated? If its not got a rad then you don't have to insulate.

Either way don't bother with an application, save yourself the money, the council will never know, or care! If you sell your house just say it was like that when you bought it.

I'm a building surveyor by the way

 

For a porch to be exempt from Building Regulations it must be;

• Less than 30 square metres
• It must be separated from the habitable parts of the dwelling by external quality windows / doors.
• Any heating or cooling systems must have independent controls / thermostat.

 

Seriously consider GRP roofing,stronger than felt, last longer, available in many colours, had it done here on front bay window & shed roof about six years ago.

 

There can't be many occasions where felt outscores fiberglass on residential properties.

 

Neighbour had new felt roof on garage, window cleaner placed his ladder on the roof to clean windows,the feet on ladder made a lovely gash in the felt.

 

And its not an easy thing to repair .....

 

Insurance paid for a whole new felt roof.

Would have been a simple repair, had it been grp.
Had scaffolding on my grp roof here, not a mark, or any damage.

 

Does ost a bit more, but the extra expense is outweighed by the longevity, strength,etc of the grp roofing.
It's a continuous GRP surface, which has no joins to lift like felt to leak, it's stronger than felt & smarter appearance.

http://www.proplasfibreglassroofing.co.uk/2015/06/10/advantages-fibreglass-roofing/

This shows the difference better than any words.

http://www.proplasfibreglassroofing...old-felt-roof-with-fibreglass-winchmore-hill/

 

And felt roofs are always marked as a question point during house sale surveys, fibre glass very easy to visually check

 

And people who see a grp roof on porch, garage, other building feel more confident buying the property, knowing there is no maintaince or cost of replacement needed to factored in replacing worn felt.

 

it is bonkers to persist with felt. Even with retail prices roofing my 4.5m x 5m bathroom roof cost just over £529 for the resin and top coat. Just the basic roofing felt (top coat and under felt) it would have come to £500 based on Wickes prices.

The size quoted in the original post would be £160 for a 30 year life time!

 

Completely right I'm Doing a 900m/2 flat roof at the moment 4 years old and previously sarnafil, deck has completely rotted in many areas thro small leaks and poor upstanding height, the client has opted for recovering with GRP and has come out at half the cost of all modern single ply membranes such as sarnafil or armorplan and is far more robust

 

Felt for flat roofs has had it's day, has to be GRP.

 

900 sq m, hope that isn't in one section ! I was shattered after having to do 22 sqm by myself

 

No I'm the contractor on it we have redo e the carpentry and have a local company doing the glassing lots of expansion joints needed so breaks it into around 50m/2 bays

 

Is that a temporary roof positioned over the existing roof?

 

Hi, yes it's a fully beamed scaffold with a shrink wrap full covering!!!