Non breathable underlay battens non breathable underlay does not need to be counter battened.
Cedar shingle installation guide.
Non breathable underlay black with 25mm eaves vent system install continuous rafter roll over fascia.
Just follow the steps outlined on the following pages and you re set.
Installation techniques vary from new homes to renovations from walls to roofs.
Remodeler andrew grace gives background information on types of cedar shakes and the standards and installation details outlined by the cedar shake and shingle bureau before walking through the steps to replacing a cedar roof from laying courses of self adhered membrane felt and ventilation matrix to setting up the first row of starter shingles to fitting valleys and capping hips and ridges.
A guide to installing cedar shingles step 1a.
This document will help you with the installation of your cedar shake and shingle roofs.