Kingspan is made from horrible petroleum derivatives which are about the most Non-Green, Toxic and un-environmental things you could ever use.
Just think - you could use sheepwool insulation instead, which is environmentally friendly, lovely to work with, and totally green.
Kingspan attracts condensation - it creates a lot of problems in houses where it is used in roof spaces. I've seen it many times used in warm roof construction, and it is very prone to condensation. Insulate your house, increase humditity levels, and suffer the consequences of mould and disintegrating plasterboard when you use kingspan. I saw one house recently which has a collapsing dining room ceiling. Everyone had investigated it and found no cause. I opened the wardrobe and found Kingspan stuck to the wall and painted over. Condensation was running down the BACK of the Kingspan, where it was stuck to the wall and dripping onto the ceiling, rotting it. We ripped the Kingspan out, and problems were solved. To re-insulate the bedroom, we used sheepwool - which is breathable, does not attract condensation, can hold moisture if the air gets humid, and draws formaldehydes out of the air and fixes them.
In another case in Bristol, the owners had long term problems with water running down walls. They thought it was the roof, the valleys, the gutters, you name it. They spent thousands on scaffold getting to the roof, then finding there was nothing wrong with it. We were called in as a last ditch attempt to find the cause. Five minutes later - we found it - Kingspan insulation in the roof of the attic rooms was literally pouring condensation down the back of the boards and down the wall. Kingspan was ripped out and scrapped, sheepwool insulation replaced it, and problems disappeared.
I have had exactly the same problem in my own house - Kingspan insulation in the roof structure, fitted as per their spec, and pouring condensation down the ceiling, rotting timbers, soaking plasterboard, and causing mould and mildew. Kingspan insulation is a disaster waiting to happen - don't even THINK about using it.
In the photos here, it is used in a cellar which is quite damp. Moisture condenses on the kingspan and dribbles down the walls and timbers, rotting timbers, soaking the floor from the drips, and causing havoc to anything left in the cellar. We installed humidity controlled extraction, and the Kingspan is still attracting condensation. It will be ripped out shortly and replaced with breathable sheepwool which is able to deal with the humidity, holding moisture and releasing it as the cellar dries out.
Kingspan burns like a rocket engine - we tested it in the woodburner - it's a good fuel for your fire - there's no way it is fire safe, no matter what anyone says about it - this is a link to a video we made recently of burning Kingspan:
Kingspan used to insulate a cellar - all it does is get wet and drip condensation. It needs to be ripped out and replaced with sheepwool. The cellar uses RHL humidity controlled extraction as well..
Kingspan used to insulate a cellar - all it does is get wet and drip condensation. It needs to be ripped out and replaced with sheepwool.