Fascia Area

6/16/2022 at 5:40:50 PM

I would normally not use plywood. I usually nail in cedar right to the rafter joists... depending on what material you're using whether it be aluminum, cedar, metal, pine, vinyl.. depending on the material its either nailed, screwed, pinned, or stapled in...

I can't see why you'd use plywood unless its a backing for a material.. even then you'd probably want your roof to breathe to avoid moisture build up...

But that is only my two cents and opinion.

6/16/2022 at 5:58:46 PM

Usually if a strip of 1/4" plywood is being used, it is being covered by aluminum capping (aluminum fascia). If your wood is to be left visible and open, it should be treated and stained (and not plywood).Siding installers and Roofing Installers are capable of making this change. But if they are covering with aluminum most installers are going to use the cheapest method.

6/16/2022 at 10:47:03 PM

Back in the 50s 3/4 prob was the normal with little or no venting. . Years later it changed to 1/4 plywood with vents. And as years passed soffits changed to vented sheet aluminum today.

6/22/2022 at 12:17:03 AM

Early days was thicker wood, if any soffits even, then they went to cheapo plywood, sometimes with some screen covered holes or nothing, half the time there was no proper venting of a roof either just a couple louvered openings in end gables, heating fuels were cheap, walls were only 2x4 exteriors & insulation was minimal, not like now. A roof "breathes" like it should to cool and heat, soffit venting in aluminum and vents on top, insulation and vapor barriers in attics, if you are doing a reno, "upgrade", don't just put the same 60 year old technology back in.

7/3/2022 at 12:08:42 PM

If you're planning on changing wooden soffits over to vented soffits just be cautious that they're permitted as the installation should meet current Code. They are not allowed within 1.2 m of a property line or an imaginary property line between two buildings.