On Tue, 16 Jun 2015 15:28:05 GMT, DerbyBorn
wrote:
I have a recently built extension and have seen bees getting
between the
sarking membrane and the Marley concrete roof tiles. I am concerned
they
may find their way through an overlap and get into the void.


The main house has a black plastic comb like strip to prevent
insect
access.


I am wondering if I should try sliding the bottom row of tiles up
and
fitting some. Should the tiles normally just slide up? What is the
strip
called? Any alternatives without disturbing the tiles - or are they
easy to
move without damage?

They are probably tree bumblebees (nimbus hypnorum).

--
Reentrant