Hi just joined,need some answer to help my very worried hubby sitting hear. he built a conservatory two yrs ago.it was joined on from the back of the house.he noticed a hairline crack in the main wall to the house next to the conservatory about four months ago.well yesterday he is looking real worried and told me the crack is now wider and about a foot longer.(total eight foot now)its vertical.he is thinking he will have to knock down the conseratory :shock: or remove the conservatory wall on that side and rebuild with a lighter plastic cladding to make it lighter to remove any strain from the house wall. hope this makes sence.!