We will list the different products their possibilities and insulation values for you.
What is the best material to use for roof insulation.
A flat roof should preferably be insulated from above.
Insulation decreases the amount of heat entering from outside when it s hot and traps warmth inside when it s cold.
In general the larger the r value the more effective the insulating material is.
Three types of heat loss or gain.
R values vary based on the type thickness and density of the insulation material.
Other insulation materials include foam wool and even insulated glass for windows.
You can generally compare roof insulation material performance using their r value ratings.
Here are a few of the most common insulation solutions available.
These days there is such an extensive range of roof insulation materials it is difficult to make a choice.
Notice that you don t see insulation filling all the spaces between the ceiling joists.
Batts or blanket insulation are the best choice for ceiling insulation if you have a flat ceiling and pitched metal or tile roof.
They may use mineral wool fibre treated cellulose or polyurethane foam.
The best roof insulation is blow in cellulose which is a form of bulk insulation that is environmentally friendly quality with a lifetime guarantee.
R value is a measure of thermal resistance or resistance to the flow of heat of an insulator.
See that photo above.
Use hardware cloth metal flashing or scrap plywood to create a safety gap of at least 3 inches all around fixtures.
Some insulation and building materials are better at maintaining a stable temperature inside the home than others.
Batts or blanket insulation.
Unless you re using mineral wool insulation or your fixtures are rated safe for contact with any type of insulation don t allow the material to touch or cover recessed cans or lights from the floor below it s a fire hazard.
A relatively recent development in the world of insulation spray foam insulation is really quite effective and serves a great purpose that no other insulation truly can.
You apply this insulation by spraying a solution in the floor walls or ceiling causing a bubble up into a thick layer of insulation.
Loose insulation fiberglass or recycled fiber materials.
For the best performance an insulation material needs to fill the whole space with no gaps voids compression or incompletely filled areas.
If your loft is hard to access you can have blown insulation installed by a professional who will use specialist equipment to blow appropriate insulation material into any awkward space.
What insulating materials are suitable for roof insulation.
Insulation is rated by its r value.
The range of batts and blankets that may be suitable for ceiling insulation include.
Polyester natural wool glass wool and rockwool.