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 eifs roof system.
To sum up the difference between flat roofs i have compiled a scoring system out of ten for domestic properties 10 being the best and 1 the worst.
But now flat roofs often are constructed with fewer layers because of improved waterproofing technology.
Flat roofs are hard to replace.
Min base coat thickness shall be sufficient to fully embed the mesh.
Also any moisture from within the home trying to find a path out will likely be thwarted by the eifs.
We offer a complete line of fluid applied single ply waterproofing systems membrane coatings and penetrating sealers for the restoration of flat roof and low slope roofs walls and concrete our field tested waterproofing solutions incorporate over 30 years of construction building experience with an exclusive line of coatings for flat roof repair and low slope roofing commercial industrial.
The eifs exterior insulation and finishing system system shall be installed with the application instructions.
What s more eifs add to the r value of a home or building.
This could mean flat roofs may not raise the same red flags they used to.
What it is and how it s put together with an emphasis on how it can affect the performance of your roof.
Learn more about eifs exterior insulation and finish system cladding.
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.
Eifs in its current basic form was developed in west germany in the 1960s and introduced in the united states in 1969 by dryvit.
With pictures and useful links for further reading.
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.
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.
The recommended method is to apply the base coat in two passes.
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.
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.