Blanket insulation or rigid styrofoam will be the least expensive but depending on the accessibility it may be difficult to.
Using styrofoam for flat ceiling roof insulation.
This is then covered with a further weatherproofing layer.
A very energy efficient enclosure results.
Flat roof insulation installation the rigid foam board insulation we used was 2 thick and came in 4 x 8 sheets.
To produce a hot roof rigid insulation is fitted outside above the weatherproofing.
Choose this option for areas that need a good amount of strength and water resistance.
What insulation to use.
As part of insulating your flat roof be sure to contain and seal all bypasses.
There are many different types and installation methods out there along with a lot misinformation about which products offer the greatest energy savings.
Cold roof systems are highly inadvisable as insulation from the inside will inevitably lead to the formation of condensation.
This is an even more dense and more expensive foam board insulation.
It is available in all different size configurations to accommodate lots of different applications.
It provides r values that range from 3 6 to 4 2 per inch.
One common use of extruded polystyrene foam board is for foundation insulation panels.
Once the roof demo was complete and the flat roof was cleared of any remaining debris some rotted 2x material around the perimeter of the roof was replaced.
This is by far the most expensive option.
Cold roof a very bad idea.
Such an insulating solution involves applying several layers of pur foam with each layer around 1 2 cm thick.
Spray foam using spray foam would be an excellent option.
Closed cell polyurethane spray foam will prove ideal for thermal insulation of a flat roof.
Image courtesy of d7 spray foam insulation houston tx.
That styrofoam insulation will work but it is not cheap per r value however it gives you a great r value per inch.
It provides about r 5 per inch.
Also called styrofoam insulation this is the least expensive material.
Some products have reinforced facing to make them sturdier.
This foam board insulation is available with straight or tongue and groove edges to help limit air movement.
Roofing insulation is one of the most important and misunderstood building components.
This type of un vented roof has proven reliable when properly installed.
Here we share the most common mistakes people make when installing flat roofing insulation.
Of the three basic types blown in insulation is the easiest to install but it requires a skilled professional.
Looking upward through the open ceiling if the exterior wall and roof deck assemblies both contain spray foam then a continuous insulation and airtight layer is established from the base of the walls to the peak of the roof.