Rigid Insulation Slope To Roof Drain

Tapered rigid insulation tapered rigid insulation is polyisocyanurate insulation or eps insulation custom manufactured to provide a slope.

Rigid insulation slope to roof drain.

The dimensionally stable gemini drain set provides a 4 way slope to the roof drain to prevent ponding and premature roof failure. Organic felt or inorganic coated glass facers. A typical interior roof drain assembly occupies about a 4 foot by 4 foot square area with a inch per foot tapered slope. Proper slope to drain eliminates ponding which accelerates membrane aging and leads to roof leaks.

Rigid foam insulation provide performance and value in low slope roofi ng systems and are designed to be used over structural roof decks. As a general rule if the insulation is 2 thick or less a 4 by 4 is sufficient. Over the course of the roof system the tapered insulation will create a slope toward the drains which typically ranges from 1 8 slope 1. Thermapink tapered roof insulation provides a thermally effi cient moisture resistant positive drainage slope for use under single ply or other types of roofi ng systems.

Details matter when it comes to insulation performance the difference is in the details. The dimensionally stable gemini dst provides a positive 4 way slope to the roof drain. 4 x4 1220mm x 1220mm. In contrast tapered expanded polystyrene eps rigid foam insulation is available in blocks up to 40 inches thick and can be cut to virtually any slope depending on the drainage needs of the building.

Available with acfoam ii acfoam iii and facer technology one piece pre fabricated tapered panel. Because of its size and customization options tapered eps often can be installed in a single layer. Tapered roof insulation systems. Drain locations and deck slope verification for ponding water or deflection.

Developing the design criteria for a roof drainage plan that will perform with the roofing system to drain the roof is critical prior to the bid process and roof system installation. Gradually tapered sumps formed in the insulation to facilitate localized drainage at drains. As a general rule if the insulation is two inches thick or less a 4 foot by 4 foot sump is sufficient. Elastizell low density insulating concrete roof decks acheive positive drainage in new and reroofing construction.

If the insulation reaches 3 or thicker an 8 by 8 creates a more gradual slope while still providing the necessary momentum. A typical interior roof drain assembly occupies about a 4 by 4 square area with a per foot tapered slope.