Attic ventilation

Local Inspection Issues Canadian Home Inspectors
1

here is the situation; I was doing one of the mock inspection at my father inlaws today and noticed there is an ice dam forming on a complete back side of the roof. but no ice dam in the front there is possibly a ventilation problem saying it is.there is a maxi flow installed on the roof and air would circulate through the soffits, originally there are openinings of 12"x12" on the south and north walls just below the peak of the roof should these original opening be closed up to create a chimny effect for ventilation of the attic.

Thanks in advance
Michael Russell

2

What’s the insulation situation up there?

3

Pink fiberglass was used, and it didn’ look like any was moved .thé house is 1972 modèl,would thé insulation have settled or naturally compressed?

4

http://www.buildingscience.com/documents/digests/bsd-149-unvented-roof-assemblies-for-all-climates

5

What a great site Roy thanks

6

I am sure you found the list on the right side they can add big time to your knowledge .

http://www.buildingscience.com/documents/published-articles/pa-crash-course-in-roof-venting/view.
If you want to talk and ask me questions send me you phone number and time to call.
Roycooke@hotmail.com.

7

What a novel Idea Roy! I am shocked how many do not know about the site. Great to see you point him in the right direction.

8

Good information mâkes good inspector

9

How much was there?