Minimum Slope For Durolast Single Ply Membrane Roofing

Thermoplastic single ply membrane roofs must have a design roof slope of 1 4 12 or greater 2 slope.

Minimum slope for durolast single ply membrane roofing.

Heat welded seams provide superior strength. Membranes are available in solar reflective white and several different colors. Unique in the industry duro last offers a 15 year warranty with consequential damage coverage for duro last prefabricated roofing systems with no additional charge. This 1 4 12 minimum roof slope requirement also applies to spray polyurethane foam spf roof.

The use of the resisto self adhered waterproofing membrane as a first layer and the resisto granulated cap sheet high resistance hr cap sheet as a second layer is an ideal solution to ensure the waterproofing of low slope roofs. The custom fabricated single ply pvc duro last commercial roofing system is ideal for any flat or low sloped application extremely durable and easily installed by authorized duro last contractors without disrupting building operations the duro last roofing system is also watertight highly reflective resistant to chemicals fire and high winds as well as low. Short for thermoplastic polyolefin tpo is a single ply roofing membrane that offers excellent performance at a cost effective price. The minimum slope for a flat roof is 1 4 per foot or 1 4 12 but some owners or insurance companies require a minimum slope of 1 2 per foot.

This warranty is only available for. Duro last membranes are available in 40 50 and 60 mil thickness. For example the international building code 2018 edition ibc 2018 prescribes a 1 4 12 minimum roof slope for asphalt built up polymer modified bitumen thermoset and thermoplastic single ply and liquid applied membranes in new construction. Tpo s long term heat uv and natural fungal resistance plus flexibility without need for plasticizers also make tpo a reliable low slope roofing system.

The idea is to provide positive drainage toward roof drains so there is no ponding water 48 hours after a rain storm. Call us at 800 248 0280 contractor portal online ordering find a contractor. Duro last is another pvc roofing manufacturer catering to commercial roof markets. This means for every 12 horizontal units the roof must rise a minimum of one fourth vertical unit.

These membranes are particularly effective for roofs with a very low slope between 1 8 12 1 and 4 12 33. Sprayed polyurethane foam roofing minimum roof slope roof pitch r905 14 1. Specialty flat roof decking product called deckshield is available for walkable flat roof decks. Since our start in 1978 ib roof systems has maintained a superior performance record for commercial and residential single ply pvc membrane complete roofing solutions.