Hello,

We are in the process of appointing a contractor to undertake roofing work at one of our sites.  The job will last approx. 8 weeks and with 12 contractors employees so I don't think falls into the notifiable bracket.  My question is, as the contractor will engage a sub-contractor to install scaffold and edge protection, does a principal designer need to be appointed?  

Can the contractor we appoint be both principal designer and principal contractor?

Many thanks in advance.

Given it is like for like - roof replacement there does not sound like there is any design in the CDM sense of the word unless it is completely different and then there may be design interfaces.

As for the scaffold it will more than likely come a standard - by that I mean from the SG:20 Design Guide so there is no need for design statements, drawings, calculations or designer input.

As Ian said you do need to appoint a PD but it is very low level stuff, there is not enough info but a lot of Architects wil take on these duties for a fee as the PD role is about managing the interface from design to construction commencement.

Hope that helps

WHile Oldroyd has a fair point about the design requirements, nevertheless the CDM definition of 'design' is very generic and hence has wide implications. So will probably still apply to the project you have.