Hi Everybody
I'm wondering if anyone in the forum has already solved this problem. We have ICF walls with a wall plate that in the architect drawings will be set level with the ICF block i.e. the top of the wall plate will be at the same height as the insulated part of the blocks either side and the trusses will be in contact with both the wall plate and the insulated blocks. Above the trusses will be a warm roof with the insulation going past the position of the wall plate towards the eaves. This however leaves us with the space between the top of the wall plate/ ICF blocks and the insulation laid above the trusses that we need to insulate. We have a shallow pitch to the roof of about 15 degrees so the space is fairly tight.
Our relationship with our architect went south some time ago, and based on the experience we have had he would not have created the right detail anyway, so we are working with our builder directly. We have discussed a number of options from trying to notch the ICF and only pour the concrete to lower height to enable us to then angle cut it to the angle of the trusses once they go in, retro fitting PIR into the space between the trusses with required angle cuts or using mineral wall to pack out the area. VCL layer will obviously be internal to all of the insulation.
Any thoughts on the best approach - what else have people done?
Thanks
Will