If the joists are larger they might support attic flooring but the only reliable way to know for sure is to have a structural engineer take a look at your attic support system.
How to check the attics structure.
Stains damp musty odors and dampness are signs of a leaking roof.
A level or plumb bob can be used to check walls posts and columns for plumb and level.
It is very common in attic today to find a black substance or possible mold on the sheathing.
Contact a local licensed contractor to review the attic structure and make any and all necessary repairs.
Check to see that no metal has rusted around the furnace.
Check for wood rot and deterioration roof leaks are the most common source of moisture in attics.
This is generally caused because the attic is not venting properly.
Ladders to the roof or structure.
Naturally if you see buckets or pots setting about you know there s probably moisture.
As you clamber about step only on the edgesof the boards that stick up.
Chimney access of course no one can inspect the interior of a chimney from the attic but an inspector can note whether the structure itself is solid within the attic space.
Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca.
In attics and crawlspaces is startling from exposed nails and broken glass to dangerous reptiles insects.
Conducting an attic inspection first outfit yourself with a 25 foot tape measure and a flashlight and head for the attic.
Most building codes require a ratio of 1 150 ventilation space to attic floor space.
If the trusses are bowing additional support may be needed.