What is a lightweight insulating concrete deck?

What is a lightweight insulating concrete deck?

Lightweight Insulated Concrete (also known as LWIC) is a material intended for use as an insulation and substrate for support and attachment of roofing membranes on slope roofs. The LWIC systems are composed of either aggregate or cellular concrete.

Is a concrete roof a good idea?

Extremely Durable – A concrete tile roof can last more than 50 years, especially when installed in the right climate. This is one of the longest track records of performance compared to other roofing materials. These roofs can withstand hail, high winds, rot, insect damage and even fire.

Is flat concrete roof good?

Flat concrete roofs are generally low maintenance, meaning they are easy to clean and aren’t too difficult to access. Like any other roofing, debris and dirt can pile up over time. However, roofers can easily remove these from the surface without damaging the roof itself.

What is the R-value of lightweight concrete?

Structural concrete has a density ranging from about 90 to 120 pounds per cubic foot and compressive strength from 2500 to more than 6000 psi….R-Values for Concrete.

Density R-Value
Structural lightweight–110 pcf 1.85
Lightweight aggregate–80 pcf 2.47
Lightweight aggregate–60 pcf 3.46

How do you insulate a concrete roof?

To insulate a flat roof with a concrete deck, we recommend a warm deck construction method, where the vapour control layer is sandwiched between the concrete deck and a layer of rigid PIR insulation boards.

How long do concrete shingles last?

50 years
Typically, a concrete tiled roof can last for as long as 50 years. Making this work depends on several factors, including adequate maintenance, regular inspection, using good-quality underlayment, and getting the right contractor or professional roofer.

How long does a concrete roof last?

What is the R-value of 6 inches of concrete?

between 0.6 and 1.2
A reasonable R-value for a normal concrete slab can be estimated using an R-value, the thermal resistance per inch of thickness, between 0.1 and 0.2 and multiplying it times the slab thickness. For a 6-inch slab, R-value would be between 0.6 and 1.2.

Do concrete roofs need insulation?

Concrete roof insulation In commercial building, concrete roofing can supply insulation all on its own, but the effects of standing water and other environmental hazards can damage even the best concrete roof systems.

Are concrete roofs cheaper?

The flat or nearly flat concrete roof is an irresistible draw. It vastly increases living space at a little more cost than a conventional metal roof.

How thick does a concrete roof need to be?

Exact specifications vary, but most concrete roofs are several inches thick. For example, the Florida-based company Hurricane Proof Systems offers a 7-inch (18-centimeter) slab of concrete in three layers. To install such a roof, a crew first builds a framework for the intended roof.

Is a concrete roof waterproof?

CONCRETE ROOF PROJECTS AMES rubberized, acrylic, elastomeric waterproof coatings for concrete roofs provide unmatched flexibility and protection against the harshest conditions. Use AMES Seamless Monolithic Roof Coating Systems to protect and prolong the life of your roof for years.