We installed this flat roof near Harvard Square in Cambridge, Massachusetts in the summer of 2010. The roof installation consisted of four separate roof sections on different levels of this house, which at the time was undergoing major renovations inside and out, including total new insulation in walls and between roof rafters, new heating system with radiant floor heat, new energy efficient windows, and a new IB PVC flat roof (which we installed of course).
The old rubber roof was leaking and we had to remove it, including the wet roof insulation, and we installed a new 50-mil white IB Flat Roof, with 4 inches of tapered insulation (4 inches at the highest point and 1 inch at the lowest level). The tapered insulation system was utilized to eliminate ponding water on the two bigger sections of the roof. At the deepest point, there was as much as 2 inches of ponding water, and the puddle with at least 12 feet diameter. This ponding water caused both the roof leaks and the roof rafters settlement.
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This is a project profile of a flat roofing system installed over a sun-room roof in Wellesley, Massachusetts. The roof system was planned in such a way that a premium wooden deck would be installed over it, and the long-lasting water-tightness was the most important aspect, while at the the same time aesthetics were also important.
Waterproofing a flat roof deck:
Wellesley is known for its beautiful mansions and only the best building products (such as an IB Flat roof) make their way into these homes. Having a backyard deck is a great addition to the coziness of any home, and very often such decks are built over a sun room, garage, or other living space. Therefore, having such deck completely watertight is of utmost importance. If this flat roof deck leaks, it would be very difficult to trace this leak, since a wooden deck siting on slippers over the waterproofing layer is usually built as one piece, and it would require a complete dis-assembly of the deck to find and fix the roof leak.
Railing systems on flat roof decks:
Each deck must have a railing system. For aesthetic and structural reasons, it is best to install the railing posts through the roof and tie them into roof rafters, rather than attach them to the outside perimeter of the deck. However, to make these through the roof posts watertight using conventional flat roofing systems such as rubber roof, is nearly impossible in the long run.
Why IB Roof is the perfect waterproofing system for flat roof decks:
Because of such high demands for the roofing material to be watertight and long lasting, IB Flat Roof was chosen as the product of choice for this high end residential home in a secluded neighborhood of Wellesley, MA. While this home was going through a complete renovation, a large addition was built in the rear of the house including a beautiful sun roof, and a beautiful premium wooden deck would be built on top of an 80-mil commercial grade PVC roofing membrane. Read the rest of this entry »