What's this roof shape called.

[Faceache]

In section it would be the same shape roughly as a stanley blade.
In other words 45 degree pitch up to a flat roof at the top.
Need this kind of shape in order to get under first floor windows.
Thanks
David

 

[noseall]

I call it a flat topper.

 

[Faceache]

Thanks Noseall.
Providing the spans are not too great do you know if they could be built entirely out of timber?
Could you use a ridge purlin where the 45 pitch meets the flat top in order to get a vaulted effect on the inside. Apologies if I've used wrong roof terminology.

 

[noseall]

Thanks Noseall.
Providing the spans are not too great do you know if they could be built entirely out of timber?
Could you use a ridge purlin where the 45 pitch meets the flat top in order to get a vaulted effect on the inside. Apologies if I've used wrong roof terminology.

You mean like this.....

Untitled

• noseall
• 17 Jan 2015
• 1

We used a steel beam at ceiling level in order to prop the roof junction above which consisted of a pair of timber beams on the short run and a flich arrangement (very heavy) on the long run.

Here we go.....

Untitled

• noseall
• 17 Jan 2015
• 2

Untitled

• noseall
• 17 Jan 2015
• 2

Untitled

• noseall
• 17 Jan 2015
• 2

 

[Faceache]

Thanks so much Noseall that's exactly what I had in mind and very helpful.
Thanks again.

 

[themiddleagedun]

Just done one of these using roof trusses. With slate on the pitched part & EPDM on the flat.

 

[noseall]

Just done one of these using roof trusses.

How?

Surely a manufactured truss would be prohibitive regards open vault etc?

Any piccies?

 

[catlad]

Its a type of mansard.

 

[themiddleagedun]

Just done one of these using roof trusses.

How?

Surely a manufactured truss would be prohibitive regards open vault etc?

Any piccies?

I didn't see the part about it being vaulted Ours was just a flat ceiling.

 

[Faceache]

Can you get trusses made in this shape then? How do they get over the timber sizes for the flat top or do they simply increase them.
Could they build a truss this shape and have the ties or collars raised so as to produce a vault effect?

 

[iandouglas]

Its a type of mansard.

yes i agree, a corruption of the original french design which empolyed two distinct slopes, one steeper than the other.