Recent content by Dereekoo

Well a good plasterer will do that in a day so £250 - £400 depending on location and skill levels + materials but its a mine field out there with dubious perps passing themselves off as plasterers. 2 or 3 quotes if possible off recommendations from friends and acquaintances. Good luck you...

Yes

I was but not from the OP spec as he only gave a joist size, but from my loading assumptions which showed with the loadings assumed the joist size to comply with acceptable parameters

In that case have as many footpaths as you want

Plastic roof with no footpaths then?

Never said they did, just some reference tables that don't flag up 200 x 50 joists either just to give him a feel for things but thanks for the heads up

The purlin would have been put in position in the first place because the roof rafters span exceed their permitted span for the timber used. Looking at the pictures it looks like the purlin has been placed off centre of the rafters so presumably the top length of the rafter is the max distance...

All depends on your loading but C16 timbers with a snow load of 0.75kn/m2 and dead load of 0.75 kn/m2 gives a deflection of 11mm against an allowable of 12mm and a bending moment of 1.9knm against an allowable of 2 knm Not sure if you are flat or sloping roof but these tables will help...

my untrained brain can't work out whats what but its purlin

Breathable membrane would keep the dust out and avoid any condensation issues, Membrane may clag up with dust over the years but that should be a long way off

Yes but it may not still work Yes

Which is pretty standard

Basically above your window opening where your lintels are its good practice to have either a sloping piece of DPM from the internal leaf to the external leaf so if there is any ingress of water it is directed to the external leaf above the window where it then passes through weep holes to the...

Yes it is and yes you do

Cut a section of pipe out and insert 4nr 90 degree push fit bends with a bit of joining pipe work to make a U shaped trap only issue is if its external it may freeze in winter OR just keep the bath plug in its hole