Diagonal rafters in 1930s semi - problem for loft conversion?

DRP

Hi 
Question as above... this house has a nice big loft that we are considering converting. Are the ‘diagonal rafters’ (from ceiling joists to the roof), part of the normal arrangement for a hipped roof of this age?
If not, would their presence be a costly additional factor when cost information a conversion?

many thanks 

stuart45

They are purlin struts which are normal on a cut roof. When lofts are converted load bearing walls are often built under the purlins to support them, or there are other methods. 

grumbler

1. Does it really matter?

2. I am pretty sure it will.

DevilDamo

The removal of the struts alone are the least of your worries or cost concerns for a loft conversion. All the timbers would need to be upgraded (not necessarily replaced) to accommodate the conversion. New floor joists bolted to the sides of the existing ceiling joists, new dwarf/stud walls unless you’re having dormers, bigger rafters, steel or timber/flitch beam at the apex. If it’s a traditional hipped roof, you’d normally end up with a post propping up the junction of the hip/apex.

DRP

Thanks guys. I guess I was just looking for reassurance that this wasn't something that would cause major issues.

cheers.