Maximum Slope For Epdm Roofing

A minimum slope of 0 25 inches per foot 2 percent is recommended for all low slope roofing systems for adhered systems the substrate must be one that is approved by the system supplier.

Maximum slope for epdm roofing.

The minimum roof slope allowed by code for any type of roof is in 12 applicable only to coal tar pitch roof systems. For example some epdm membrane assemblies have maximum roof slope limitations as low as 1 2 12. The maximum recommended roof slope for mechanically attached roofing systems is 18 in one horizontal foot. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code.

1 8 slope per foot is more than adequate. The main component of the roofing system is the firestone rubbergard membrane a tough flexible epdm ethylene propylene diene terpolymer based sheet which is fully vulcanized to provide excellent dimensional stability and weathering resistance. A roof slope of 7 12 is also good and can provide the additional benefit of helping minimize the effects of wind driven rain. Epdm is fine if there is enough slope to drain any water off the roof within 24 hours of the last percipitation event.

The rubbergard max epdm membrane is an internally reinforced cured single ply roofing membrane that is designed to combat roof tears and punctures and provides superior resistance to wind forces. The mechanically attached roofing system is not acceptable for installations on steel decks lighter than 22 gauge. Normally 1 80 0 72 is the recommended minimum angle for a slope and this is universal across the vast majority of flat roofing systems regardless of the materials that they incorporate. With the rubbergard r m a.

System that uses large epdm panels. Grumpy chicago gutters chicago roofing. System product slope barrel arch etc. Rubbergard r m a get uninterrupted protection.

There are no maximum slope restrictions for the application of the fully adhered roofing system. In order to achieve this drop a slightly steeper angle of 1 40 1 44 should be the aim when installing a flat roof as this accounts for surface. However from the wind uplift mitigation perspective a 7 12 roof slope can be considered as a two story building due to the higher overall steepness and profile of the roof.