First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
How often should you go into your attic.
Any moldy insulation should be replaced immediately.
The telltale evidence of tiny poop pellets is often the first sign that critters have been living in the attic.
Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.
Mold can grow from the warm humid atmosphere in an attic causing hazardous air quality for your home.
This can cause considerable damage.
Though attics should have proper air circulation with vents at the eaves and an attic fan you don t want to fight high heating or air conditioning costs because of leaks between the living space and the attic.
As you can imagine leaving any open areas will allow warm air to seep into your attic during the summer.
Inspecting your attic insulation.
Squirrels raccoons possums and rodents often enter attics through the eaves or loose boards.
You should also replace insulation if your roof has had a leak or you suspect water has gotten into the insulation.