Roof Poding Deflection Check

The builder was made aware of this issue and had the roofer who framed the house and installed.

Roof poding deflection check.

While we recognize that repairing your roof is never convenient. Deflection for exterior walls with interior gypsum board finish shall be limited to allowable deflection of h 180. Ponding water accelerates the deterioration of many materials including seam adhesives in single ply roof systems steel equipment supports and particularly roofing asphalt. For example the allowable deflection of a 12ft span floor joist with plaster l 360 is 0 4 12ft divided by 360.

Deflection in roof first of all. 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. Refer to section r703 7 2 reason.

Ponding is the typically unwanted pooling of water typically on a flat roof or roadway. If that same joist had gypsum ceiling l 240 the allowable deflection is 0 6. You may catch potential problems early and potentially prevent them from becoming more serious. Load limits on the roof of a building.

Roofs are under a lot of pressure. The shingles or sheathing on the homes roof is lifting deflecting causing ripples in the roof. See the table below. We moved into the house march 2013.

Note it gives the allowable deflection based on a fractional span quantity so a larger denominator will yield less deflection. Shame on a home inspector who is too busy or too something else to not respond to an inquiry from a past client. My tennessee home was started in may 2012 and the roof was put on in late june. 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.