I also see you're having trouble with fills - the diagonal crosshatch typically indicating (at least here in the US) insulation is not coming across - you may have to select one of the fill entities which is doubtless there behind the linework and see if there is a pattern fill which has been generated, and if so, adjust its appearance, or if not, pick the relevant pattern fill and apply, then save that as a graphic style and bulk apply it to all the insulation sections. You can, with one of these selected, open the Appearance Palette and make further edits, and save this as a new graphic style, OR over-ride the existing definition and update all the current elements with this style in the drawing. I use this approach to manage consistency of lineweights and other such items when retouching architectural drawings with Illustrator.
To get the right crosshatches available to you, open the Swatch Libraries>Patterns>Basic Graphics Lines, and you should find one that's perfect for rigid insulation:
As an example of using the appearance palette, I duplicated the fill on the object, and added a colour fill above, set to a blending mode of "colour burn" to add a blue behind the linework of the rigid insulation.
Hope this helps; j'espère que ça vous aidera.
Si vous avez besoin d'autres examples, veuillez suivre ce lien: arch-grfx.solutions