This variant is named for birch plywood (huş kontra), not for XPS foam. The catalogue positions it as lightweight and high-strength. The poplar-plus-XPS build on the main CTP Panel page is a different description and is not copied here.
Plywood in a sandwich acts as a structural sheet between CTP faces. The hub product documents poplar plywood; this SKU is specifically birch. Birch is the differentiator in the name. Millimetre thickness, glue class and load tables are not published on the site, so they are not invented here. What is verified is that the variant is defined by that birch layer.
CTP EPS CTP leads with insulation foam (named XPS in the copy). CTP Polyurethane leads with polyurethane and vinyl. Birch Plywood CTP leads with wood. The sentence “1.5 mm CTP + 30–100 mm XPS + 6 mm poplar” therefore does not belong in this body: that stack is the hub product’s published build. This page is about GRP/CTP meeting birch plywood.
Jobs that want stiffness at low weight are the usual reason to open this card. Caravan, trailer or architectural cladding sit on the site’s wider CTP map; which variant you pick still depends on the layer you actually need. Birch-only is not the same as polyurethane plus birch — that combination has its own URL.
If thermal foam is the first requirement, start with the EPS/XPS-led card. If polyurethane and vinyl coating are specified, use that SKU. Certificates, fire class and price are not listed here; ask via contact.
Other CTP panel types: CTP EPS CTP Panel, CTP Polyurethane Panel, CTP Polyurethane Birch CTP Panel. Overview: CTP Panel.
