@ minebathroom and @ Luke Buckle, our electrician has informed us that we don't have to put solar panels on our house roof if we don't want to for aesthetics or if for example the roof was old as you mentioned Luke. Panels can be placed on a shed or garage roof anywhere on your property if you are rural like us for example, as the power can be directed into the grid from anywhere the solar panels live and that doesn't have to be on the house roof. We would love to go solar but agree with all your other points @minebathroom, too expensive and expected lifespan and feed in tarrifs are very ordinary but then there's also the back up service too, will the company still be around in one year let alone 10 years. When our electrician got his solar, he got such a fantastic tarrif rate which was offered at the very start of the solar revolution, he was recieving a cheque or refund of something like $500 a quarter but the rates are so low now, there is certainly no chance of recouping some of the instalation costs, although I wouldn't be so fused about that if I thought I would get say 20+ years out of the system before it begun to possibly fail in some way. Things do have to get allot more reliable if nothing else!!

Contact Velux (skylights). Sounds odd perhaps but their installers are well experienced with water proofing, roof's, etc. or try a roof plumber experienced with terraces. Not just any roofer but one with terrace experience. I know a Velux installer and he makes up his own flashings, etc as well as being a great builder. Unfortunately he's no where near you.

I posted the exact same question a couple of days ago! I can find some great products with lovely patterns in the UK but its so hard to figure out where to buy. I managed to get samples sent from a company, but I have no idea how to actually order it as they tell you to use your local supplier... and I don't know who that is? they only had a limited range, checks or diamonds (ie checks the other way) and I want something more interesting. atrafloor will sell to au but its super expensive.

We have recently used Abbey Aluminum to replace our ageing timber windows and doors. Can highly recommend them. Very professional and great products. They have different profiles, we opted for chunky commercial grade frame but they have others too.