My 1923 house doesn't have enough attic insulation according to modern
standards. Trouble is, there are lots of flat boards fastened to the beams
making access to all parts of the attic very easy. Would pulling them up,
installing attic blankets, then sistering boards to the beams to raise the
'floor' be the best way to have both properly installed insulation and an
Alot of trouble for access, insulation would be my first concern,
storage or access the least of my worries. It is unheated, right. To get
access you would have to raise the floor up very high. Im my case 18".
Insulation codes are only minimums, optimal amounts would be found at
Energy Star, even manufacturers recomendations I would follow with ever
increasing utilities. The attic is the cheapest and easiest place to
make the greatest difference in utility reduction since heat rises and
it is cheap to do. Optimal ratings are often double of code.
that is exactly what i did
I used 2x10's and 1/2" plywood as cleats from the new lumber to the old.
then screwed it all together. When the insulator came by all he had to do
was shoot under the plywood flooring. I stuck with 4 foot wide. All I kept
up there were card board boxes, flattened. Be careful that you do not put to
much weight up there, ceilings are seldom designed for much extra weight on
top of the structure.
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