Flat roof starting under soffit and fascia

[firapara]

Hi Guys,

My flat roof on the extension will be starting under the soffit/fascia of the existing roof. Need to go as high as possible because of the ceiling height in the extension.

What is the best way to do this? Should I remove the gutter completely? Or just do it under the soffit?

Any advice is greatly appreciated

 

[noseall]

My flat roof on the extension will be starting under the soffit/fascia of the existing roof.

Under? Are you lowering the floor too? Or are your upstairs existing ceilings really high? Seems like a really bad detail. Ordinarily the wall plates would be at the same height, i.e. the flattie would hit the pitched, several courses of tiles up the roof.

You will need to remove the lower roof tiles, membrane, battens, soffit, gutter etc. Then as you build up the flat roof, fix OSB in place of the fascia and possibly a lay board up the rake of the roof also.

Untitled

• noseall
• 13 Dec 2014
• 2

 

[Harry Bloomfield]

What is the best way to do this? Should I remove the gutter completely? Or just do it under the soffit?

How about simply continuing the existing roof surface down, doing away with the gutter, and soffit?

 

[noseall]

How about simply continuing the existing roof surface down, doing away with the gutter, and soffit?

He may as well maintain a vertical upstand, if the opportunity is there. You have to take into account how it will look from the side, and decide how to finish the fascia detailing etc.

 

[firapara]

Under? Are you lowering the floor too?

You will need to remove the lower roof tiles, membrane, battens, soffit, gutter etc. Then as you build up the flat roof, fix OSB in place of the fascia and possibly a lay board up the rake of the roof also.

Untitled

• noseall
• 13 Dec 2014
• 2

Thank you, I was going to lower the floor.

Do you, by chance, have a detail for the flat roof to pitched room transition?

 

[noseall]

Do you, by chance, have a detail for the flat roof to pitched room transition?

No drawn detail no.

Untitled

• noseall
• 5 Nov 2014
• 1

Roof Fun5

• noseall
• 17 Nov 2017

Dormerfun

• noseall
• 3 Nov 2017

Roof Fun1

• noseall
• 17 Nov 2017

Roof Fun4

• noseall
• 17 Nov 2017

Roofundercanopy1

• noseall
• 29 Oct 2017

 

[firapara]

No drawn detail no.

Thank you.

I am doing this under Permitted Development. Is it ok, to connect flat roof into pitched under PD?

 

[noseall]

Thank you.

I am doing this under Permitted Development. Is it ok, to connect flat roof into pitched under PD?

Yes, as long as you do not exceed any height parameters set out in the permissions criteria.

Have you had it designed or are you just winging it?

 

[firapara]

Yes, as long as you do not exceed any height parameters set out in the permissions criteria.

Have you had it designed or are you just winging it?

Had it designed, but the architect did not include any detail for that, only the cold roof detail. It says the the roof cannot be higher than 2800mm where it is closest to the neighbours fence.

 

[freddiemercurystwin]

How will you do a cold roof if you can't get vents in?

 

[firapara]

How will you do a cold roof if you can't get vents in?

Was thinking to install a few of these

 

[wessex101]

Thank you.

I am doing this under Permitted Development. Is it ok, to connect flat roof into pitched under PD?

Be careful. It is very difficult to get a flat roof extension on a bungalow under permitted development. The eaves height of the flat roof is usually higher than the eaves height of the existing pitched roof. (Under planning the "eaves height" is not what you would normally expect, from memory it is a notional line that intersects between the outer face of the wall and the upper surface of the roof).
For permitted development jobs I usually go with a false pitch - small pitched roof around the edge with a flat roof in the middle, that usually complies with the eaves height issue.

 

[firapara]

Be careful. It is very difficult to get a flat roof extension on a bungalow under permitted development. The eaves height of the flat roof is usually higher than the eaves height of the existing pitched roof. (Under planning the "eaves height" is not what you would normally expect, from memory it is a notional line that intersects between the outer face of the wall and the upper surface of the roof).
For permitted development jobs I usually go with a false pitch - small pitched roof around the edge with a flat roof in the middle, that usually complies with the eaves height issue.

Thank you,

The eaves hight, according to the architect's drawings, should not exceed 2800mm where it is closest to the neighbour's fence. I will make sure it complies.