Flat Roof Tapered Insulation Chart

Flat tapered eps roofing insulation.

Flat roof tapered insulation chart.

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. When correctly installed tapered insulation helps eliminate problems due to ponding water and can extend the longevity of your low slope roofing system. The higher the r value the better the thermal performance of the insulation. Expect the price to fluctuate between various companies each and every company have different operation expenses and over head.

Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Cricket panel slope the slope of the cricket panel. Slope dimension lttr value nominal. When correctly installed tapered insulation helps eliminate problems due to ponding water and can extend the longevity of your low slope roofing.

Johns manville tapered polyiso offerings please refer to the previous page for typical physical properties. Cricket width points c to d generally the shorter of the 2 cross sections. We are insulating a flat roof with tapered rigid insulation over a moisture barrier and then capped with modified bitumen. We toyed with spray foam but this may be overkill as we would have to insulate areas that don t require it.

However we lose r value where the taper is thinnest and need to insulate under the sheeting. Installing tapered insulation also negates the requirement for a structural roof fall helping to reduce the overall cost of the roof. Tapered roofing insulation insulfoam i vii ii ix xiv and xv. Get at least 3 5 estimates before hiring tapered insulation contractor estimates are typically free unless it s a service call for a repair.

Roof surface slope the slope that is in the structural deck the slope created by tapered insulation or a combination of the two. Achieving greater r values in attics. You can achieve better thermal performance in. Standard material is johns manville enrgy 3 tapered and flat polyisocyanurate roof insulation.

Insulfoam taper is an engineered insulation consisting of a superior closed cell lightweight expanded polystyrene eps. Tapered insulation pricing and installation cost checklist. The standard tapered panel size is 4 x 4. By creating appropriate falls and drainage a flat roof is more likely to last for its designed life by channelling water to outlets efficiently.

Slope cross sections published feb. Rs 5174 5 19 replaces 2 18 panel desig. Insulfoam taper is cut from the same high quality eps as our flat insulroof products and meets or exceeds the.