Spra is the voice of the single ply roofing industry.
Flat roof association.
National roofing contractors association 8600 bryn mawr avenue chicago illinois 60631 312 693 0700 january 1983 revised januaty 1985.
Learn more professional roofing.
By using an nfrc registered contractor you have the comfort of guaranteed protection and quality.
The national federation of roofing contractors limited nfrc is the uk s largest roofing trade association representing over 70 of the roofing industry.
Flat roofs or low slope roofs are also commonly found on commercial buildings throughout the world.
The roofing alliance was established in 1996 to create an endowment fund to serve as a resource for the roofing industry and its customers.
020 7448 3195 email.
The flat roof is a fairly recent invention in construction only having come into mainstream use in the early 20th century.
Foreword this handbook of accepted roofing knowledge is de signed to provide designers specifiers owners consul tants and roofing contractors with information pertinent.
Flat roofs exist all over the world and each area has its own tradition or preference for materials used.
Flat roofs usually come with a 10 to 20 year warranty but can last 25 years if you build the roofs right and maintain them using commonsense rules.
The national roofing contractors association defines a low slope roof as having a slope of 3 in 12 or less.
While there are examples of very early flat roofs most of the earliest roofs constructed by man were thatched roofs that were made of straw leaves branches or reeds.
020 7448 3858 fax.
The confederation of roofing contractors crc the crc is a trade association promoting high quality skills and working practices.
Pros and cons for flat roof materials all three types of flat roofing cost 250 to 350 per square 100 square feet but prices vary according to region and size of the roof.