For sales or technical enquiries, call 01244 913 320 or email

EPDM Flashing - Seldek SDA102 - for 150mm diameter Chimney system.

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Seldek SDA102 - Low Cost Alternative Rubberised flashing with flexible alloy base suitable for pitched tiled or slate roofs.

For twin wall chimney systems External diameter 110 - 200mm.

Availability: In stock


Delivery: normally within 3 working days.  Next day possible if ordered before 12 (T & C's apply). more about delivery .

For more info call 01244 913 320 or email us 

We aim to give you the best prices on all stoves, and include a free flue pipe. If you've seen it cheaper, call or email us the link.

Free flue design service  - we aim to beat any quote for similar products.


More Info


NOTE – The 150 diameter referred to in twin wall chimneys is the internal diameter - the external diameter is 200mm and is not used to describe the part.

The built in 20° pitch adapts to most roof pitches

Suitable for tiled roofs with external pipe diameters of 5inch to 8inch (110mm to 200mm),

Temperature up to 135°C

Lead free aluminium base.

The EPDM rubber upstand has a 20 year life expectancy.

The pull tab design and easy smooth tear grooving is intended to eliminate cutting by knife and create a perfectly circular hole.


1. Pull tab design to correct size using pliers, alternatively cut using a stanley knife.

2. Apply silicone sealant to back of flashing.

3. Remove tiles around pipe and slide flashing over pipe.

4. Fasten Flashing to the roof.

5. Cut tile to fit tp the top of the Flashing allowing the bottom of the flashing metal base to sit on top of the tiles.

Download Technical Sheet



Diameter 150mm internal / 200mm External
Colour Black
CE Certification EN1856-1 T450 N1 D V2 L50040 G60
Inner Material 316L Stainless Steel - 0.40mm thick
Outer Material 304 Stainless Steel - 0.40mm thick


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