Fair enough we shall see what happens next I guess - thanks for replying 
Heat should've made it easier if anything I think, certainly was still high 20's when spotted the issue. Just realized at lunch actually that all along the top the seal doesn't sit flat on the window frame either

Heat should've made it easier if anything I think, certainly was still high 20's when spotted the issue. Just realized at lunch actually that all along the top the seal doesn't sit flat on the window frame either