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Probably the worst enemy of the house is the water leakage, especially in the coastal environment. To avoid water leaks in your home, it is essential to pay close attention to this aspect of construction to avoid the development of mold and rotting of the wood.
Many water leaks come from around the windows. Window leaks are often due to improperly installed house wrap and flashing. After a few rainy seasons, the windows in many new homes need to be repaired by removing the windows, house wraps, and flashing and starting over, this time correctly. The newest flashing tapes on the market are peel and stick flashing tapes like Fortiflash. Contact the company and get the details on how to install these tapes.
It has been said that there is no waterproof coating. Over time, moisture will find its way behind the siding no matter how it was installed properly. That is why we have a vapor barrier like felt paper. Now you need to install drain wrap such as Tyvek drain over the felt paper. The theory is that any water entering behind the liner will drain over the drainage blanket and out the bottom. Because of this, it is important that you keep the liner open at the bottom so that water is not trapped.
In western states, if the exterior door faces west or south, where the strongest wind hits the home, a stainless steel flashing must be installed. Care must be taken to measure carefully so that the pan will fit perfectly.
For the doors, you will need to install the house covers correctly just as you did for the windows and install the Z flashing over the crown molding. Even so, no matter how well you squeeze the door in the open, water from stormy weather can still somehow get in. To completely prevent the ingress of water, the door should be so tight that it cannot be opened. Of course, this defeats the purpose of a door. Therefore, it is highly recommended that you install a storm door.
Another possible source of water leakage is the fireplace and your brick or stone fireplace. Transitioning from siding to brick or stone is a delicate matter that requires careful attention to detail to keep moisture out. Still, the recent trend is to buy a pre-fab fireplace, install stone or brick around the fireplace, and use stainless steel pipe for the fireplace. The outside fireplace would be covered with the same cladding, not brick or stone. The advantage: a great cost saving, avoiding possible leaks and a better thermal efficiency of the chimney.
For the entire home, the best defense against water intrusion is to ensure that the crawl space and attic are well ventilated, that the 6-foot slope surrounding the home is clear of the home, and that the drainage system is the gutters and downspouts work properly.
The information above will draw attention to the main sources of unwanted moisture in your new home. Make sure your home is dry, comfortable and trouble free for a lifetime.