The 4 D’s of flashings

As far as building materials go, there aren’t too many places that can supply their customers with flashings as excellent as ours. When it comes to these fine products, they must be versatile, practical, trim, and have to be able to amplify the aesthetics of the structures that they are used on. Purpose made to suit a wide array of sizes and shapes, our products are some of the finest available on the market.

Over a decade ago, Canadian architect Don Hazeldean concluded that the leaky home syndrome plaguing Vancouver at the time originated from terrible flashing practices. He observed the purposes of these products and identified those principles that were most crucial to the success of flashings. Collectively, the principles are called the 4 D’S and they stand for those design concepts that should be in every flashing.

Deflection is the first principle and this refers to the prevention of moisture and water from getting into the building. Drainage is up next and if any moisture manages to penetrate behind your flashing there should be a drainage pathway that will disperse the unwanted liquids to the exterior.

With drying, the flashings must aid in removing moisture that does breach the deflection defence. An appropriate degree of fresh airflow needs to exist in order to get rid of moisture via evaporation. Finally, we have durability. Here the design and material of the flashing has to be sturdy enough that it can last through the cladding’s entire lifespan, maintaining the weather tightness protection as a result.

At Peter Wragge Supplies we always make certain that our flashings meet the highest performance standards. Examples of our work can be found on our website but should you have specific requirements, we can fashion products that better fall in line with them.

Let us know if there’s anything we can do to help. We are confident we can provide the very best products for you at the right price.