New to the TT world

Skibane wrote:

ChrispyjCSLT22 wrote:
block foam insulation, roof insulation, have they not improved? especially on these new rigs?

Typically, the best insulation comes as part of an "Arctic" or "4 Season" package - usually an optional upgrade.

There's nothing exotic about it. It's just thicker-than-typical insulation, and double-pane windows* - the same sort of stuff that's been available on higher-end RVs for decades.

*The storage and tank compartments usually also have ducts from the furnace routed to them, although that doesn't do anything to help with summertime cooling.

4 seasons such as this?

High Capacity Furnace
Heated and Enclosed Underbelly with Suspended Tanks
Designated Heat Duct to Subfloor
High Density Roof Insulation with Attic Vent
Moisture Barrier Floor Enclosure
Residential Heating System Throughout(Ductless)
Double Insulated Roof and Front Cap(R-40)
Heated and Enclosed Dump Valves

https://www.granddesignrv.com/showroom/2022/travel-trailer/imagine-xls/floorplans/17mke

or Keystone's Extended Season Camping Package-Heated and Enclosed Underbelly

jayco's Glacier package,

it seems like those marketing ploys are done by manufactures who use wooden trusses and pink panther insulation in the roofs...