English
English
Español
Français

User Access


Glo Group - LDR Accelerator - Sidebar
CertainTeed Credentialing - Sidebar Ad - Why I Trust CertainTeed
ABC Supply - Sidebar Ad - Siding solutions for any style
ChrisCoryell-July2025-PeopleMakeRoofing-SidebarAd
Gibraltar - Sidebar Ad - Metal Roofing
Glo Group - LDR Accelerator - Sidebar
METALCON - Sidebar Ad SPAN - METALCON 2025
English
English
Español
Français

fibre board insulation

« Back To Roofers Talk
Author
Posts
February 4, 2009 at 4:17 p.m.

jfreynik

Is there a difference what side goes up with fiber board insulation? I have a job that we are putting this down over old glue covered plywood and was wondering if it matters what side goes up. One side is dark and some what lumpy the other side is waffled but smooth.>>>

February 5, 2009 at 2:23 p.m.

Mike H

My understanding is that the black side (regardless of which side is smooth) goes on top with adhered systems. The asphalt coating acts as a binder and keeps the adhesive from just soaking into the wood fiber.>>>

February 5, 2009 at 12:00 a.m.

Mike H

What kind of roof are you installing over the wood fiber? It does make a difference with some systems.>>>


« Back To Roofers Talk
You must be logged in to reply to this topic.

English
English
Español
Français

User Access


Glo Group - LDR Accelerator - Sidebar
All Weather Insulated Panels - Sidebar Ad - OneDek
Renoworks - Sidebar Ad - Try now!
GAF Sidebar Spanish Program
METALCON - Sidebar Ad - METALCON 2025
NFBA - Sidebar Ad - Accredited Builder
RCS - Sidebar - L&L contest