Each component has a job in plain English, then the numbers.

Select a layer on the diagram to see thickness, lambda, Sd and guide price.

PerliTherm

The breathable insulating body of the wall system: expanded perlite bound with hydraulic lime.

AeroGel

An ultra-thin thermal boost where reveals and junctions are tight.

PerliScratch

A keyed lime-perlite coat so the insulation can grip the masonry.

PerliMesh

Breathable internal thermal upgrade to bare brick walls and a retained lath ceiling using PerliScratch, AeroBond, mesh, and PerliTherm, improving surface warmth and reducing condensation risk while preserving historic fabric.

AeroBond

Adhesive and basecoat in one, for aerogel and mineral layers.

PerliFinish

A breathable lime finish, ready for decoration.

PerliBase

The insulating mineral underbase of the floor system.

PerliStruct

A structural lime-perlite screed that still lets vapour through.

PerliMat

A vapour-open separator beneath the floor build-up.