Some observers suggest it s harder to replace a flat roof than a traditional pitched shingle roof because of the labor required to remove its layers especially on older flat roofs.
Flat eifs roof system.
With pictures and useful links for further reading.
Exterior insulation and finish system eifs is an exterior wall cladding that utilizes rigid insulation boards on the exterior of the wall sheathing with a plaster appearance exterior skin.
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.
R value is a measurement of the resistance to heat flow.
Min base coat thickness shall be sufficient to fully embed the mesh.
The main locations where water tends to infiltrate into the framing structure of a building using an eifs is around doors and windows where the roof connects to the eifs roof flashing and below extended exterior deck connections.
What it is and how it s put together with an emphasis on how it can affect the performance of your roof.
Also any moisture from within the home trying to find a path out will likely be thwarted by the eifs.
The higher the r value the better the material s insulating value most eifs use insulation board with an r value of r 4 to r 5 6 per inch as the innermost layer in the wall system.
This could mean flat roofs may not raise the same red flags they used to.
The variation in lifespan depends often on whether the flat roof holds water the amount of details and joints as well as the quality of workmanship.
But now flat roofs often are constructed with fewer layers because of improved waterproofing technology.
Eifs in its current basic form was developed in west germany in the 1960s and introduced in the united states in 1969 by dryvit.
The custom fabricated single ply pvc duro last commercial roofing system is ideal for any flat or low sloped application extremely durable and easily installed by authorized duro last contractors without disrupting building operations the duro last roofing system is also watertight highly reflective resistant to chemicals fire and high winds as well as low.
The recommended method is to apply the base coat in two passes.
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.
What s more eifs add to the r value of a home or building.
Flat roofs are hard to replace.
Learn more about eifs exterior insulation and finish system cladding.
