Recent content by sapahesi

Can anyone tell me what the new gradings are for CRS, as I gather the ratings changed a few years ago? I know they range from C16 - C24 but don't know how they relate to some old drawings I have. The timbers are: 100 x 50mm at 350 CRS 175 x 50mm at 350 CRS 100 x 50mm at 500 CRS...

That's great FMT, thank you SO much :D I have just fired an email off to the BCO with lots of queries, they will probably hate me now but hey ho, if it makes life easier (and a tad cheaper) in the long run....! Unfortunately our ceilings are lathe and plaster, being a 1930's built house...

Thanks FMT, that's really helpful. I wouldn't have known (or expected) there to be any errors on the BCO's part, so I will ring them and query that part of the schedule 8) What I need to know now is what thickness board I need, I gather the standard is 12mm, is this sufficient and do we...

The BCO stated: "the method of insulating the external walling doesn't provide the required U value of 0.3" - so this would be the dwarf wall, yes? and "the method of insulating the horizontal and sloping ceilings doesn't provide the required U value of 0.22" - which is as it says on...

Hi folks We had plans drawn up for a loft conversion in 1997, which were passed by the BCO, but we didn't go ahead with the work due to finances at the time. Some 13 years later(!!) we are now going to have the loft converted. We've submiited the old plans for approval as the structure...