Should I remove old attic insulation before adding new?

• <div><p>Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation: </p><ul><li><p>If the insulation is over 15 years old</p></li><li><p>If the insulation is wet or moldy</p></li><li><p>If it is <a href="https://www.angi.com/articles/what-is-vermiculite-insulation.htm">vermiculite insulation</a></p></li><li><p>If you see signs of pest infestation</p></li></ul><p>Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.</p></div>

What is the downside of radiant barriers?

• <div><p>The primary downside of radiant barriers is their limited effectiveness in cold climates. They are designed to reflect radiant heat, making them less beneficial in cooler conditions where heat retention is more important. </p><p>Radiant barriers require proper installation to maximize effectiveness. Incorrect placement can lead to minimal benefits. They also do not provide insulation, meaning they should be used in conjunction with traditional insulation for optimal energy efficiency. </p></div>

Should wall insulation be faced or unfaced?

• <div><p>Unfaced wall insulation is easier to cut and install, making it the better choice for a DIY project. It’s also more affordable. But if it’s unfaced, you’ll likely need to add a vapor barrier to reach your desired R-value and efficiency, as it doesn’t offer any moisture barrier.</p><p>Faced insulation uses paper or foil to create a built-in barrier and doesn’t require an extra step. It’s also more fire-resistant and safe. But it’s quite a bit more expensive and a little bit harder to work with as a DIYer.</p></div>

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Last update on January 03, 2024

Reviewed in January 2024
Contractor was professional and easy to work with. He did everything I asked him to do and I ended up with my dream kitchen. The kitchen area was cleaned up every day when they were done working and I was still able to use the sink and appliances at the end of the day. I highly recommend his...
Next Level Building and Remodel
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Reviewed in January 2024
Wendell is a master craftsman. Some of the finest work that you will ever have done. I highly recommend him if you need a qualified and honest contractor. He is beyond reproach. You will not be disappointed!
RWP Construction, LLC
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Reviewed in May 2023
Arrived promptly on time. Did a great job and cleaned up when they were done.
GarriGutters
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Reviewed in March 2021
Needed it done the next day. They made sure of it.
Paladin Home Inspection Services
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Reviewed in July 2020
Outstanding. From the first call Jason has been nothing but professional. Our metal roof was installed on time. And looks beautiful. No mess afterwards. Best contractor we have ever hired. Will be using him for other projects at our cabin.
Jason Ives Construction
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Reviewed in May 2020
Complete Exteriors recently replaced the shingles on my townhouse in Gaithersburg, MD. I also hired them to replace our gutters and downspouts. The roof shingles are CertainTeed Landmark Pro architectural shingles and they look great. The Complete Exteriors crew arrived around 7 A.M. and...
Complete Exteriors, LLC
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Reviewed in February 2016
They came and pick up my UTV and took it to their shop and went over the whole unit and replace what needed replace. They fix the gear shifter that another company broke and replace the choke that the other company said they replace as well the clutch that the other company said they replace and...
CARNS EQUIPMENT LLC
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Reviewed in March 2014
They took the roof off the existing garage, set down new floor, built outside walls, strengthened garage to hold addition, shingled roof and sided. They installed new windows and as per our agreement, we are finishing the inside work. The work is top class and his workers were professional and...
Daryls Home improvement
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Reviewed in January 2014
We called Ray Peffer at Textbook Plumbing after hearing a couple good reports about him from friends. <br /> Our enclosed corner shower needed to be replaced so we asked Ray for an estimate. The estimate came in at about $2,300.00. The price seemed reasonable enough for the job. <br /> The...
Textbook Plumbing and Heating
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Reviewed in April 2013
Payne's was the lowest bid we could get. I argued that he was over $3000. too much but we had to have it done and allowed him to do it. <br /> I told him I would monitor his time and multiply the same by his rate (which he gave me) Well it was $2,000 over one the main roof and <br /> $700. for...
payne and sons contracting
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Doorbell Installation questions, answered by experts

Mineral wool wraps are the most affordable and effective insulation for crawl space ducts. They are easy to cut, last for a long time, and healthier for humans. Meanwhile, fiberglass wraps are cheaper but more hazardous and difficult to handle. If you do choose to use a fiberglass wrap, make sure you are wearing long sleeves and wear proper protective gear.

Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation:

If the insulation is over 15 years old
If the insulation is wet or moldy
If it is vermiculite insulation
If you see signs of pest infestation

Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.

The primary downside of radiant barriers is their limited effectiveness in cold climates. They are designed to reflect radiant heat, making them less beneficial in cooler conditions where heat retention is more important.

Radiant barriers require proper installation to maximize effectiveness. Incorrect placement can lead to minimal benefits. They also do not provide insulation, meaning they should be used in conjunction with traditional insulation for optimal energy efficiency.

Yes, usually you will need some kind of vapor barrier on the exterior walls when the framing is attached to concrete and masonry surfaces.

Unfaced wall insulation is easier to cut and install, making it the better choice for a DIY project. It’s also more affordable. But if it’s unfaced, you’ll likely need to add a vapor barrier to reach your desired R-value and efficiency, as it doesn’t offer any moisture barrier.

Faced insulation uses paper or foil to create a built-in barrier and doesn’t require an extra step. It’s also more fire-resistant and safe. But it’s quite a bit more expensive and a little bit harder to work with as a DIYer.

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