Maximum Roof Pitch For Clay Tiles

Built up roof coal tar pitch.

Maximum roof pitch for clay tiles.

18 43 clay tile barrel spanish or s shaped with special. The irc recommends a minimum pitch of 2 5 12 for these materials. Ratios from that minimum up to 4 12 which are considered low pitch require double underlayment. The international residential code irc specifies a minimum 4 12 pitch 4 inches of vertical rise for every 12 inches of horizontal run for a clay or concrete tile roof except that a pitch as low as 2 1 2 12 is allowed when two layers of underlayment are applied.

Clay tile roof slope sheathing underlayment specifications include defining thte roof slope requirements for clay tile roofs and roof sheathing requirements for clay tile roofs and also clay tile roof underlayment requirements. It is uncommon to find a roof below 15 but for those very low pitch applications there are interlocking clay pantiles available suitable for use down to 12 5. This is common practice in the south east for instance where plain tiles are used as a cladding material on the first floor. Tiles or slates can be used at pitches up to 90 degrees vertical provided a clip is available to securely clip the tail of the tile available for most tiles.

18 43 clay tile barrel mission or two piece with special underlayment requirements 2 in 12 2 5 in 12 11 77 clay tile barrel spanish or s shaped. Clay tiles are colorfast which means their tints improve rather than fade over time.