After installing your new set of stairs that you have purchased from Prefab,  maintenance is probably the last thing on your mind. But without proper care and application with Intergrain coating products, you will not get the look, or life span that you are trying to achieve.
The Intergrain Natural stain together with the Intergrain Ultra grip will give you the longest lifespan and a high non-slip surface. The Stair should be re coated after the first 2 years and then every 3 years after that. 
Intergrain products can be re coated straight over the old coat with possibly just an Intergrain approved cleaning product applied beforehand. If you cannot remember the last time you coated the stairs, you will be able to tell by casting an eye on the stair and seeing if it looks tired and weathered, if it does then its probably time to re coat.
The Intergrain Ultra Deck is the same as the Natural stain but wont last as long,  it will need to be coated approximately every 18 months to 2 years. 
You can see all of the Intergrain range if you go to the Our Stairs section on our website.

The truck is ready for another day of deliveries. Loaded with assembled and kit form stairs straight of the factory floor.

Back in time to do a quick local run. The tyre's on the truck barely get a chance to cool down and its back on the road again.