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We have got a structural engineer and he seems to want to remove perlins and replace them with steel ones higher up, he says we need to have a steelframework to support the new long joist, this in turn need support from more steelwork and bracking and includes two new perlins. It seem abit OTT...

We are still planning our loft conversion, now only with roof window so no complications of having a dormer. It is a traditional roof. Area is approx 22 x12 foot. One of a terrace of three cottages but all sharing the same roof and the same perlins. We are at the end so the perlins in our roof...

Yes, we are getting building regs concent from council for the conversion. But we are getting conflicting advice from different builders about what is required. Just heard that the maximum span for floors must not exceed 6 meters, and ours is, so now we are not sure we can do it?

We are definitely not going to go for a dormer window, just a roof window/skylight window. We are not touching the existing perlins. We have horizontal collars which we will move higher up the roof above what will be the new bedroom ceiling and also we will also use the eves to use vertical and...

The party wall is of cob construction and it seems to finish below the existing loft floor level. It is not a very wide party wall anyway and it just seems to taper way as it goes up towards the loft. The party wall in the loft is just lathe and plaster on the lower section and modern plaster...

thanks for the reply. What sort of size timber would you need to span 20 foot? Would you have to join two together to get the 20 foot span? What size steels would we be looking for? Would they be RSJ's.?

We are planning a loft conversion and we have to span an area of 20 ft from front wall to back, the party wall is not strong enough to support joists so we are thinking of going front to back walls. Is is possible to span this distance, and would it be best to use steel or wood? Any ideas...

Thanks for that info. Does the work to our side of the party wall require us to notify our neighbour as per the requirements of the party wall act?

We are doing a loft conversion in a small stone cottage end of terrace, so only one party wall. The majority of the party wall from the ground floor up to the ceiling of the first floor seems to be of cob construction. The party wall in the loft area is just lath and plaster. To comply with...