PIB (Polyisobutylene) can also be used over fiberglass insulation. PIB is a type of vapor barrier that is designed to prevent moisture from penetrating through walls, ceilings, and floors.
You could certainly replace it with foam board insulation, and then use spray foam or caulk to hold them in place. foam board that is R-13 or above would be as good as the fiberglass insulation that is there.
Cellulose does not cause fiberglass to lose its R-value.
However, cellulose insulation is ideal for providing additional R-value over existing attic insulation with little to no fuss, since it completely fills voids and gaps left open by other forms of insulation.
Fire retardant vapor barriers like 6 Mil White Dura Skrim Reinforced Plastic Sheeting can be a beneficial choice for covering ceiling insulation.
In general, either batt or rolled insulation or blown loose-fill insulation (fiberglass or cellulose) can be installed on top of old insulation.
Yes. DuPont™ Tyvek® is compatible, and can be installed with foam insulation products.
One quick and effective way to cover exposed insulation is by using plastic sheeting. This method is simple and can be done with materials readily available at stores like Home Depot.
Being an inert material, it is a non-viable food source for mold and will not support mold growth. Fiberglass insulation cannot fight the battle against moisture intrusion alone, however. Vapor barriers applied over the face of the insulation provide additional benefits in the fight against moisture.
Depending on what you hope the outcome is you can use liquid nails, wood glue, and even foam insulation spray or panel foam adhesive to join pieces together.
Moisture damage
This can occur due to leaks in the roof or foundation, inadequate ventilation, or high humidity levels inside a building. Moisture can cause the insulation material to become compressed and lose its effectiveness, leading to increased energy consumption and potential mold growth.
Air Leakage
Fiberglass insulation is less dense than other types of insulation and does not create an airtight seal, which means air can travel freely through the insulation. This is called air leakage and it's one of the most common sources of energy loss in a house.
Gel coat is the most common surface coating used in the fabrication and repair of fiberglass reinforced products. Our Low Emissions Gel Coat is a specially formulated two-part polyester resin that is designed to be the first layer of resin applied in a mold when making a polyester or vinyl ester composite part.
Yes, foam board insulation is an excellent complement to batt insulation. Foam board insulation can add insulation and eliminate thermal bridging when used in wall and ceiling assemblies insulated with batts. It can potentially replace the vapor barrier and house wrap as well.
It is also important to note that some fiberglass insulation products may be damaged if they are compressed. Damage to the insulation or sheathing can make it less effective, as well as reduce the longevity of the insulation.
Insulation Facings
Common facing materials include kraft paper, white vinyl sheeting, and aluminum foil.
You can take steps to reduce your exposure to fibers when working with materials that contain fiberglass: Wear loose fitting, long-sleeved clothing and gloves. This will reduce skin contact and irritation. Wear a mask over the nose and mouth to prevent breathing in the fibers.
We would say the best fibreglass adhesive would be a methyl methacrylate adhesive or an epoxy adhesive. If you can't decide between the two, you can get in touch with an adhesive expert. Or, if you want to do a bit more research yourself, you can read our article which compares the two adhesives in more detail.
Boarding over your loft insulation can be a great upgrade for your home when done correctly, so your insulation is not compromised. It can provide you with usable storage, or even extra living space, which will only enhance the value of your property.
Rodents that invade a home make their nests in three places: attics, underflooring, or inside walls. Of these three areas, rats will gravitate towards walls and ceilings because of the generous amount of insulation. Insulation is prime material for rat nests, and they'll often settle in places that have plenty of it.
Fiberglass insulation needs to be covered in any occupied area of the home because it can enter the air and end up in your eyes, lungs and skin. If you have exposed fiberglass insulation in a common area of your home, you need to cover it — but drywall isn't the only solution.
After the insulation is in place you will want to add a vapor retarder, sometimes called a vapor barrier, if you need one. Not every wall does. A vapor retarder is a material used to prevent water vapor from diffusing into the wall, ceiling or floor during the cold winter.
It's important to note that some insulation materials, such as spray foam, do not require an air gap. However, if you're using traditional insulation materials such as fibreglass or mineral wool, it's important to follow the manufacturer's guidelines for air gap size and placement.
One option is to cut some rigid foam insulation e.g. Polyurethane (PUR), Polyisocyanurate (PIR), Expanded Polystyrene(EPS) or Extruded Polystyrene(XPS) squares and push them up into the ends to hide the fiberglass. Be mindful of the type of foam insulation you use if you plan on painting it.
Don't worry about that one. But with that strong air stream, breaking up of fiberglass strands and moving them around is a cause for concern. So, buy Tyvek, and use it to cover the insulation; staple it to framework. It is not a vapor barrier, so it is OK to put over the insulation.
Yes! Not to mention that as a builder your first step is to consult your local and state building codes. In many colder North American climates, vapor barriers are a required part of building construction.