Soffit carpentry question

[logan97]

Cornice, soffit carpentry question. I have some trusses set at 2' on center and 24" deep for soffit .Sub fascia in the front no nailer in the back. Can I use 1/2" BC plywood for soffit with a 2" continuous vent, which would make the 1/2 pieces about 11" wide x 8' long.

 

[WayneB]

I guess you could use 1/2" plywood, but I just don't understand why you would want to? Just did my soffits although we only have a 12" overhang and ran a continuous vent down the center. There doesn't seem to be a need for thicker plywood material.

 

[/pine]

Sure...what is the siding on the building?...

If the soffit is going up after the siding you can use a trim strip etc...I would recommend priming/painting all edges of the plywood (including the but joints)

2" is not much of a vent though...can you not open it up to 4" ?

 

[logan97]

2" x 8' pieces is how it comes from the lumber yard . the other option would be 8" x 16" squares and leave the 1/2" plywood 24" wide

Sure...what is the siding on the building?...

If the soffit is going up after the siding you can use a trim strip etc...I would recommend priming/painting all edges of the plywood (including the but joints)

2" is not much of a vent though...can you not open it up to 4" ?

 

[/pine]

How is the attic space ventilated?...that is the factor in determining the amount of venting needed at the soffit...

with just about any circular saw you can use a cheap rip fence (that connects to the saw) and rip the panels down...

is there a reason you do not want to go with something like aluminum or vinyl soffit?...it is much more on the maintenance free side...

 

[logan97]

How is the attic space ventilated?...that is the factor in determining the amount of venting needed at the soffit...

with just about any circular saw you can use a cheap rip fence (that connects to the saw) and rip the panels down...

is there a reason you do not want to go with something like aluminum or vinyl soffit?...it is much more on the maintenance free side...

gable vents on both ends 4/12 pitch 28' wide 64' long. old school not familiar with vinyl could see if the local lumber yard carries it.Thanks for the reply. 12' x 12" vinyl cut into 2' sections with J channel is what you are suggesting

 

[/pine]

gable vents on both ends 4/12 pitch 28' wide 64' long. old school not familiar with vinyl could see if the local lumber yard carries it.Thanks for the reply. 12' x 12" vinyl cut into 2' sections with J channel is what you are suggesting

yes that would work...the "J" channel trims the building edge...use "L" or "F" channel along the sub-fascia or use aluminum fascia that has the "L" break...