Roof pitch greater than 45 degrees

[garyo]

It looks like the roof pitch on my new extension will be 49 degrees. Getting it down to 45 degrees will compromise the design and make a number of other things awkward. Should I care?

- I'll be outside of standard span tables for rafters etc, but I can let the SE deal with that. I presume the deflection is only going to decrease anyway so it's not going to change the rafter sizing?
- My mitre saw isn't going work

Is anything else going to bite me on the @ss in this respect? Is there a point at which tiles are classed as vertically hanging and I'd need to fix every one with screws/nails?

Thanks

 

[^woody^]

Is there a point at which tiles are classed as vertically hanging and I'd need to fix every one with screws/nails?

All roof tiles have been required to be individually fixed for a few years now, whatever the pitch.

 

[garyo]

Ah yes the new BS. Are roofers all mechanically fixing ridge tiles now as well as bedding them?

 

[palaceray]

All interlocking tiles must be nailed, Plain tiles need to be nailed every 4th course and all perimiters.