porch soffit

[markbam]

I am planning to build a porch ,looking for some advice on soffits.
I done my soffits on my extension and made a right pigs ear of it ,so hope to do things right this time
1. do tiles sit on the soffit?
2.does this determine height of soffit to be used ?
3.do i fix soffit before tilling roof ?
4.is it best to sit on top of brickwork ,if yes does this determine height of vertical soffit ,also does it sit on brick or morter .

hope someone can help

 

[^woody^]

You need to sort out your soffit's from your fascia's

Fascia is the vertical bit. The tiles do rest on it, and it is fitted first, and then the soffit - which is better resting on the wall.

The fascia is determined by the roof pitch and distance between the underside of the tiles and the level of the sottit

 

[noseall]

as woody says, the fascia provides the 'kick' on the first course of tiles. without it, or indeed if it isn't tall enough the first course of tiles will dip and look awful.

the fascia tends to sit about 40mm above the rafter, but as woody says, will depend upon the roof pitch and wether or not you use over fascia vents or not.

 

[markbam]

thanks you 2 thats a big help