I'm looking for a magnetic cover to block the shutters on the whole house fan (from the downstairs side). Years ago, when I got my first whole house fan, back in the days of the Sears and MW catalogs(!) they were available through those sources. I think I remember them as being plastic, with little magnets that attached to the fan frame. I never bothered, because in that house, there was an actual stair way to the attic, so I'd just go up and throw a quilt over it.
In the new house, there is also a whole house fan. Unfortunately, the only way to the attic is through a little hatch with no fold down steps, even. And I am *past* the point of feeling agile enough to climb my step ladder and get into the attic myself. Let alone get back down! So I'd like to find a magnetic cover I could use from below. I have found a few that use velcro, but I don't want to have to leave the velcro visible year round. (Plus I have hairy dogs, and that always does in any sort of velcro closures!).
Any sources? The fan is maybe about 30x30? I haven't measured. OR does anyone know where I could buy a similar sized piece of that magnetic vinyl (sign) material? Maybe I could make my own. The ones I've seen online all seem to be about 24".