Timber frame - Purlin roof with insulation between and under the rafters

Drawing I

Detailed View

Drawing I
Number Description
1 Brick outer leaf
2 Ventilated Cavity
3 Solitex WA breather membrane
4 OSB Sheathing
5 Homatherm Holzflex 040 natural insulation
6 DB+ Variable vapour check
7 Rapid Cell Quick Tape
8 Plasterboard
9 Cavity Barrier
10 Solitex Plus Breather membrane
11 DB+ sealed with Orcon at bottom plate of dwarf wall for airtightness seal
12 Ceiling Joist
13 Dwarf Wall
14 Rafter