80 - Q&A April #2 2023

Listener Wes asks about radiant barriers (Pete goes way deep on this one...); listener Chris G wants to know if there is a "perfect" (ala Joe Lstiburek) shower wall (with Pete responding he had just taken a shower that had a "perfect" wall); listener Howdy (dubbed so by Jake 'cause we did not have his name) from Climate Zone 3 asks about  new construction, unvented roof assemblies (including a Lstiburek "perfect" roof with only topside rigid insulation); and finally British Columbia listener Harpreet asks about what sort of WRB to use with structural wall sheathing that is almost always damp.

Pete's Resource(s):

1. Radiant Barriers - https://www.energy.gov/energysaver/radiant-barriers 

2. BUILD show wood shower wall (Jake's house): https://buildshownetwork.com/contents/wood_shower

3. Perfect Roofs (and walls): GBA Podcast - https://www.greenbuildingadvisor.com/article/the-perfect-wall-roof-and-slab-building-science-podcast

4. Fluid-applied WRB: GBA blog - https://www.greenbuildingadvisor.com/article/liquid-applied-water-resistive-barriers