Installing underlayment is important, it’s the last line of defense to keeping the house or building dry. Some re-roofing jobs can stretch out for a few days and having a great underlayment installed always helped homeowners and contractors like Dependable Construction sleep at night knowing the roof is protected should a surprise rain storm come rolling in during the middle of the night. The underlayment is not just a part of a roofing system it can be a temporary roof when installed correctly.

Just like feathers on a duck the water should roll off one course onto another down into the valleys, flowing around installed flashing and down to the eaves. This of course means having a good crew trained on the best practices of installing any underlayment. Dependable Construction ensure each member on the crew is fully trained to install synthetic underlayment.

One of the best tips we can share is to have synthetic underlayment installed. Synthetic is very lightweight and covers 10sq per roll. So tossing 2-3 rolls in a truck vs a whole pallet of #30 felt, is a smart thing to do especially working in the rainy season. A couple of trips up the ladder and the whole house can be dried in.

When buying a roof there are so many options. Did you know that with a few inexpensive improvements that you may never see, you can make your standard roof a great roof? When installing underlayment we like to suggest a few options that make a great roof. Obviously we start with a good Peal and Stick underlayment at the eaves. This area gets pounded with all the water from the whole roof. The water from your roof all flows to the eaves, so having extra protection here is a great idea. Plus in the colder climates, it protects from moisture intrusion from Ice Dams.

As you continue installing underlayment, we like using the IWS, (Ice & Water Shield) in the valleys, around the chimney, plumb vents and skylights. This adds an extra layer of protection for those critical areas where leaks occur. Once up past the overhangs and the Ice Dams Zones, recommended about 24” past the interior wall. To make thing water tight interlace all the flashing and use the correct fasteners. These flashing if install with a head lap can be removed when installing the roof.


Should you have any trouble doing this or don’t wish to tackle the project after all remember you can always call Dependable Construction and we can assets you with all your roofing needs. We are proud to be a trusted contractor in Dayton, OH. We specializes in many different home improvement projects, including but not limited to roofing, siding, decks, windows, Skylights, drywall, painting and gutters. We can help you turn any house into your dream home while only using the highest-quality materials and best workmanship in the area.

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