Roof Poding Deflection Check

My tennessee home was started in may 2012 and the roof was put on in late june.

Roof poding deflection check.

Deflection for exterior walls with interior gypsum board finish shall be limited to allowable deflection of h 180. While we recognize that repairing your roof is never convenient. Roofs are under a lot of pressure. See the table below.

Note it gives the allowable deflection based on a fractional span quantity so a larger denominator will yield less deflection. Refer to section r703 7 2 reason. The shingles or sheathing on the homes roof is lifting deflecting causing ripples in the roof. It pales in comparison to the cost and inconvenience of ignoring the impact of what your roof has endured over the years.

The current combined row for floors and ceilings with plaster and stucco. In order to stay intact and in place a roof must be able to resist loads both permanent and temporary that are pushing. Ponding water accelerates the deterioration of many materials including seam adhesives in single ply roof systems steel equipment supports and particularly roofing asphalt. Ponding is the typically unwanted pooling of water typically on a flat roof or roadway.

The builder was made aware of this issue and had the roofer who framed the house and installed. It s like going to the doctor for an annual check up. This was noticed for the first time a couple of months after the singles were installed. You may catch potential problems early and potentially prevent them from becoming more serious.

If that same joist had gypsum ceiling l 240 the allowable deflection is 0 6. Deflection in roof first of all. This is intended to be an editorial clean up and not change any current requirements for deflection criteria. For example the allowable deflection of a 12ft span floor joist with plaster l 360 is 0 4 12ft divided by 360.

We moved into the house march 2013.