Home insulation tips and contractors
Browse Topics
» Home page
» Spray Foam Insulation
» Fiberglass Insulation
» Cellulose Insulation
» Pipe Insulation
» Mineral Wool Insulation
» Plastic Foam Insulation
» Installing Insulation
» Electrical Insulation
» Building Insulation

Fiberglass Insulation


Fiberglass insulation is an excellent way to save energy as the thick blankets avoid the hot air getting out through the gaps or holes in the wallboards or ceiling and will help to keep your house warm. Fiberglass insulation is mostly used in insulating attics, because warm air rises up in the room and in case there are gaps or uninsulated areas through which the warm air can escape a lot of energy is lost.

Fiberglass is made of glass mats, which are glued together forming a soft thick blanket-like padding. The blankets are placed between joists and on walls, which are later covered with gypsum or plasterboards. Additional pieces of fibreglass can also be stuffed in holes or gaps. Another way is to use loose fibreglass insulation, which is blown into insufficiently insulated walls.

Insulation with fiberglass blankets is one of the easiest types of insulation – it is easy even for the beginner to install. It also requires no significant tools – you will need a sharp knife and protective gloves and goggles. In case fibreglass blankets you can also use a stapler for attaching them to the walls. It is recommended to wear a respiratory mask to avoid inhaling the small fibreglass dust and long clothes as fibreglass feels uncomfortable against the skin making it itch.


User Comments:



Comment by: David MacPhail
2007-05-21 07:00
A significant problem with fiberglass insulation is that it is subject to air-washing which disturbs entrapped air; the principle insulating medium. Air-washing can result in a significant reduction in the net R-value of attic spaces and especially rafter cavities in vaulted ceilings when ventilation flows are good.

Comment by: steve castellon
2007-06-14 19:06
would like to know what size and type i need form my attic im replacing it had a small fire

Comment by: JAMES BROWN
2007-07-25 22:24
WOULD LIKE TO KNOW IF THERE IS A COMPANY THAT RECYCLES FIBERGLASS INSULATION. WE NEED TO GET RID OF A LOT AND NEED TO RECYCLE IF POSSIBLE.

Comment by: Ian tuck
2008-08-01 12:41
Do you insulate directly over top of fire rated downlights, with regard to heat loss or do you move away the insulation.

Comment by: Darren
2009-08-02 18:50
I am looking for advise on insulating a basement in WI. If it is advisable to use fiberglass and if a plastic barrier is recommended, or should I go with 2 1/2" polystyrene - would that be enough insulation?


Add your comment



Fill out the fields below:
Your name:
Your E-mail: (optional - never shown publicly)
Your comments:
Confirmation code:942 Enter the code exactly as you see it into this box.





$Top Products
Popular Mechanics Weatherproofing & Insulation» Popular Mechanics Weatherproofing & Insulation
Price: $11    $8.95
The Science and Engineering of Thermal Spray Coatings» The Science and Engineering of Thermal Spray Coatings
Price: $624    $520.00
Thermal Engineering» Thermal Engineering
Price: $78    $65.00


?Questions & Answers
Resolved questions:
» Crawl space insulation
» Do you need a vapor barrier when using fiberglass insulation?
» How do we calculate the thickness required for duct and pipe insulation in hvac.

» Ask a question
» Answer questions