I am replacing the siding on half of the house. After removing the siding, it can be noted that this house from the late 70s (terraced house) has the siding placed directly against the house wrap on transverse studs. So, no furring strips.
The house wrap looks different compared to today's house wrap; it has a plastic film on the outside and a structure with 1 mm protrusions, which I suspect makes the siding not lie completely flush against the wrap.
Both the house wrap, insulation (large parts), and the back of the siding generally look good after 40 years, though some of the siding has a hint of something green on the back, but perhaps that's to be expected after 40 years anyway?
Is there really any point in adding furring strips, which would result in the siding extending out from the windows, unlike the other half of the house where the siding is fine (east and north)?