Roof Drain Sump Attachment Detail Decking

The letter designation after an spf roof system type des ignation and number identifies nrca s order of preference for addressing a specific detail condition.

Roof drain sump attachment detail decking.

Typically b decking is the ideal solution for short to medium span applications in roof canopies and awning construction. And the provision of appropriate overflow devices. If you have any questions when it comes to installation please contact our specifier services group for design and your local technical representative for the field. Approximate per foot of width section properties of standard 0 075 1 91 mm sump pan are.

An aluminum strainer dome provides strength and durability while the extra large flange with welded metal clips for attachment of the dome possesses a depressed sump to allow easy drainage of water from the roof surface. Step 2 fasten drain body to deck plate by aligning the 4 bosses on the body and 4 slots on the plate using the hex head cap screws provided. Csm metal deck stocks and manufactures b bi bv and biv types of roof deck in 22 20 18 and 16 gauge. In contrast to traditional roof drains siphonic roof drains are not designed with a large diameter or deep sump bowl because their operation is by means of sub atmospheric.

Now if this sump had had positive slope it would not have this problem but if the drain is installed too high in regard to the roof insulation outside of the sump and sump depth positive slope may not be possible. It also acts as a small header to transfer loads into adjacent uncut sheets. When it comes to design we ve got the tools to get you from the desk to the roof. Generally when properly attached see page 7 the sump pan will carry the load of the deck it replaces.

Construction details applicable to spf re cover roof sys tems with protective coatings are denoted as spf r followed by a number and possibly a letter e g spf r 1 spf r 1a. The drain features an extra large flange for positive attachment of the roof flashing membrane a recessed metal clamping ring for roof termination and proper. Step 3 drop body plate assembly into the pre cut opening in the roof. B deck is the most common structural roof deck and provides an economical and easy to install choice.

The rac deluxe retrodrain is constructed of aluminum and stainless steel for durability and designed for use with single ply bur and modified bitumen roofing systems. Quantity and placement of downpipes. I 0 36 in 4. Sarnadrain with u flow is a seamless heavy duty aluminum drain featuring a coated flange for hot air welding of sika sarnafil membranes.

Other than the baffle a siphonic roof drain has the same features as a traditional roof drain including a drain body flashing ring dome strainer and fastening hardware. Here you will find all of the pvc specifications 3 part specs details and installation guides. Step 4 align deck plate attachment slots with the desired position in the roof and fasten the assembly to the roof. Roof drainage systems should be designed and detailed by a suitably qualified trade or professional in accordance with the bca and the australian standards.