"UNIVERSAL" REFURBISHMENT RAINWATER OUTLET COUPLINGS
One of the most frequent problems in roofing has been the need to remove and replace existing rainwater outlets when renewing the water proofing. It is frequently impractical to remove the existing outlet and difficult to achieve an effective seal to the existing rainwater outlet.

There are a number of specialist rainwater outlets available on the market with varying solutions to the problem but in most cases these are extremely expensive and not always compatible with the chosen membrane system.
“Universal” refurbishment rainwater outlet couplings from InStar are available in a range of sizes to suit most situations and are easy to install, the addition of silicone lubricant enables a tight seal.
NOTE: It is essential that the condition of existing roof outlets be checked and the relevant universal RWO couplings be used.
PRODUCT DATA SHEET
“Universal” Refurbishment Rainwater Outlet Couplings from InStar provide a simple solution to creating an effective seal between “existing” and “new” drains in flat roof overlay situations without the need to disturb existing drains.

Art No |
Fin Diameter – min/max |
To fit pipe
with internal diameter |
DN50 |
61/77 |
57-75 |
DN56 |
73/90 |
70-88 |
DN63 |
73/90 |
70-88 |
DN75 |
87/108 |
83-105 |
DN90 |
105/111 |
100-110 |
DN95 |
105/111 |
100-110 |
DN110 |
120/135 |
115-132 |
DN125 |
152/160 |
147-154 |
|