1.   Robert and Peter were crawling around under there, poking sills and floor joists.

2.   Caulk the seams along the band joist, or blocking, at the ends of the floor joists.

3.   In an attic, that means the barrier is face-down between the floor joists and directly against the plaster or wallboard of the ceiling underneath.

4.   Next examine the floor joists and supporting beams for signs of deterioration.

5.   Q. My attic has insulation between the floor joists.

6.   Simply look up between the floor joists to see if there are fiberglass batts.

7.   So Corston invented a way to attach a plastic gasket to the tops of floor joists before a plywood subfloor is placed on them.

8.   The floor joists were then nailed to the studs.

9.   The toughest part, I thought, would be deciding on colors and knocking the cobwebs off the floor joists.

10.   They are practical as well, hiding uneven wall and floor joists and protecting walls.