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2. List of commercially available roofing materials - Wikipedia

   en.wikipedia.org/wiki/List_of_commercially...

   Widely used for low cost and durability. Sheds are normally roofed with this material. Gal iron or Corro was the most extensively used roofing material of 20th century Australia, now replaced in popularity by steel with longer-lasting, coloured, alloy coatings. Copper roofs can last for hundreds of years. Copper roofing offers durability, ease ...

3. Cellulose insulation - Wikipedia

   en.wikipedia.org/wiki/Cellulose_insulation

   The thermal performance of loose filled cellulose compares favourably to other types of low cost insulation, but is lower than that of polyurethane and polyisocyanurate foams. The thermal conductivity of loose-fill cellulose is approximately 40 mW/m·K ( R-value : metric R2.6 per 100 mm; imperial R3.8 per inch) which is about the same as or ...

4. R-value (insulation) - Wikipedia

   en.wikipedia.org/wiki/R-value_(insulation)

   This is a list of insulation materials used around the world. Typical R-values are given for various materials and structures as approximations based on the average of available figures and are sorted by lowest value. R-value at 1 m gives R-values normalised to a 1 metre (3 ft 3 in) thickness and sorts by median value of the range.

5. How Much Does it Cost to Replace a Roof? - AOL

   www.aol.com/much-does-cost-replace-roof...

   Basic asphalt shingles cost between $2,000 and $4,000 for the material alone, while premium options such as copper can cost more than $40,000. Roof Material Average Cost

6. Building insulation material - Wikipedia

   en.wikipedia.org/wiki/Building_insulation_material

   The use of highly compressed straw bales as insulation, though uncommon, is gaining popularity in experimental building projects for the high R-value and low cost of a thick wall made of straw. "Research by Joe McCabe at the Univ. of Arizona found R-value for both wheat and rice bales was about R-2.4 (RSI-0.42) per inch with the grain, and R-3 ...

7. Building insulation - Wikipedia

   en.wikipedia.org/wiki/Building_insulation

   Building insulation is material used in ... roof is low-cost technology based on solar reflectance and thermal emittance, which uses reflective materials and light ...