I am making a shirt for someone, and the pattern suggests lightweight woven fabricsThe problem is, the person I am making the shirt for wants something easy to care for, like cottonIs there a happy-medium? Thank you in advance!
do no longer use insulation with any style of backing in case you're including it to present insulationThe paper backing is going to the heated/cooled component, so if it relatively is interior the attic, it would face right down to the rooms.
It will be cleaner, easier and more cost-effective to put your new insulation on top of the old stuffWhy make extra work for yourself?
We had similar old insulation, but the contractor just blew in loose insulation over to old stuff to get to R60Not an expert, but I would just leave itWhy throw out R21 worth of insulation?
The old insulation is probably a blown in insulation productIt may be a cellulose or a fiber product, most likely a celluloseThere is nothing wrong ot bad about your old insulation, other than it may have a few years worth of dust on top of itI would recommend that you blown in (you could use batts as answer 1 said) more insulation over the oldIf you have any areas with exposed light fixtures (can lights etc) make sure they are properly rated for contact with insulationSome times when homeowners add light fixtures they do not purchase the proper fixture as they are more costlyOnce you have taken a look around your attic before you go to blow in more insulation, don't forget that you need to preserve the venting system in your atticThis means you need to block off the edges where your roof meets the walls so you allow air to flow up from your soffits to the ridgeA common mistake homeowners make is they think that by blocking off the air they will save energy dollarsThis may be true in the very short term, but the cost of replacing your roof and roof deck is what you riskBlow in insulation at the debpth you desire to reach the R value you desire and enjoy the extra warmth and long term savings you will have Your greatest heat loss is through your roof followed by doors and windows Make sure you wear a breathing mask and goggles and are careful not to step through the ceiling.
