Self-adhered decking and post waterproofing

By MFM Building Products.

Extending the service life of deck support components and posts.

Stone pavers, stamped concrete, fieldstones and even brick, but nothing seems more American than a great deck to fire up the grill and enjoy your backyard. According to NADRA, more than 2.5 million new or replacement decks are constructed every year. Composite decking materials and more sophisticated treated lumber decking enable a deck to last longer than ever before. Unfortunately, there is one simple and easy method to make your deck last even longer. It’s hidden under that beautiful deck surface – waterproofing protection for the deck structural support system and posts.

Most deck support systems are manufactured with treated lumber. Over time, the constant exposure to rain, snow and moisture will eventually leave the wood susceptible to rot and decay. One way to extend the life of these critical elements is by installing DeckWrap PowerBond® in the following areas:

Ledger boards

The ledger board, which is mounted to the building structure, carries a lot of the deck load and is area that can benefit from additional waterproofing. By installing DeckWrap PowerBond® over the ledger board, it will prevent water, debris and moisture from accumulating behind this hard-to-reach area.

Joist ends

ACQ-treated lumber can potentially cause metal components to corrode and fail. This has tragically been the case in several deck failures resulting in injury and even fatalities. By installing a flashing membrane, it provides a protective barrier between the wood, metal joist hangers and the support beam brackets eliminating the risk.

Joist tops

The top of horizontal joists is especially prone to water damage from ponding water. Installing DeckWrap PowerBond® across these top surfaces will create a permanent moisture barrier. The second problem area with joist tops is the fasteners used to support the deck top are nailed or screwed into the joist creating a direct line into the joist for water to penetrate.

Posts

When posts are buried in the ground, there is a lot of moisture in the soil which causes fungal growth that can attack and weaken these critical components. Using a waterproofing membrane just below the surface eliminates the concerns of structurally damaged posts. Most waterproofing membranes can also be used on post bottoms when they are set on a concrete pad or attached to a metal bracket.

About MFM Building Products

MFM Building Products manufactures DeckWrap PowerBond®, a 25-mil self-adhering and self-sealing membrane specially designed for use with decking and posts. The product can be used with treated, untreated and synthetic wood types. To learn more about DeckWrap PowerBond® or to request a FREE sample, please visit www.mfmbp.com/deckwrap or call MFM Customer Service at 800-882-7663.