Friction Fit db Bird Blocks

Many of my roofs have perlins.  They create a strong roof by having dimensional lumber running in two directions.  They provide structure for overhangs.  And they create a roof that looks great without the need for soffeting.

Sometimes I fully notch the perlins, but often I just set them on top the rafters as another layer.  This works great for venting allowing air flow in two directions.  However it creates a need for additional bird blocks to keep critters out of the insulation and roof cavity.

My latest solution rather than make a bunch of miniature blocks, is to make breathable bird blocks that friction fit with foam pipe insulation and nylon screen.

Just tape one edge of the screen, roll it over the correct size of pipe insulation and run your hands over it until the tape sticks.  Cut to length with a knife and stuff into place.

Super easy to install, even after the roof is done!  Great look because they disappear in the shadows.  Relatively durable because the foam is protected by the same screen as every other Bird Block.  Great solution for bird blocks between perlins 1.5"-2" thick by any length up to 6 feet.