Flat Roof Tapered Insulation Board

Because this is a specialty product it costs about 60 80 more than a flat foam insulation of the same thickness.
Flat roof tapered insulation board. Standard tapered insulation is typically an iso board with fiberglass mats on both sides. To drain and insulate dead level roof decks. With a thermal conductivities as low as 0 024 w mk it is designed to enhance water drainage for flat roofs waterproofed with full adhered single ply partially bonded built. It can also be made using eps rigid or high density styrofoam.
Factory cut taper that is easy to install and cut builds slope into an otherwise flat roofing system allowing water to drain freely off the roof. Roofing best practice for the 21st century we examined the cost analysis of the three standard options in a warm flat roof application across three different case studies of non residential new builds and discovered that using a tapered insulation system to achieve a u value of 0 16 w m k could be up to 26 9 cheaper. The boards can simply be installed on top of the existing waterproofing layer. Tapered expanded polystyrene eps roof insulation was developed more than 30 years ago with a dual purpose in mind.
Thus a 0 5 1 5 inch board would cost about 80 85 per 100 sq ft. However we lose r value where the taper is thinnest and need to insulate under the sheeting. Manufactured from lightweight foam control eps tapered expanded polystyrene eps roof insulation is a value engineered system that has been proven in new and reroof applications all over the country. High performance tapered insulation for flat roofs kingspan thermataper tt47 is a high performance insulation with a fibre free rigid thermoset polyisocyanurate pir core.
Flat tapered eps roofing insulation insulfoam taper is an engineered insulation consisting of a superior closed cell lightweight expanded polystyrene eps. Insulfoam i vii ii ix xiv and xv. We are insulating a flat roof with tapered rigid insulation over a moisture barrier and then capped with modified bitumen. Consists of recycled newsprint to provide strength to the board as well as high recycled content.
When correctly installed tapered insulation helps eliminate problems due to ponding water and can extend the longevity of your low slope roofing system. Insulfoam taper is cut from the same high quality eps as our flat insulroof products and meets or exceeds the requirements of astm c578 standard. It is readily available in the two most popular and efficient tapers 1 8 3 18 mm per foot 305 mm 1 and 1 4 6 35 mm per foot 3 18 mm 2.