Insect Screen with Rainscreen
TJSmall
| Posted in General Questions on
I’m currently building a home that has a 1×4 furring strip rainscreen with Hardie Board and Batten siding. I intend to install a bug screen between the furring strips at the bottom of walls along the ground, but is it necessary to install a bug screen between furring strips at the bottom of walls that terminate at roof intersections (i.e. dormers and roof eyebrows)?
Thanks.
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Replies
TJSmall,
If you have a rain-screen cavity on any wall it needs to be open at the bottom to both provide a drainage path and air movement. If it's open at the bottom it needs some form of protection against insects.
Thanks Malcolm!
Is there a way to install this protection after the fact? I have a rain screen open at the bottom where the 2nd level meets the first level roof for which builder did not install insect screen.
CL,
Depending on how high above the roof surface the siding starts you might be able to get either perforated flashing or Cor-a-Vent up underneath the furring strips. Perhaps easier would be to push folded insect screen up between them.