Roof Overlay Install

Since an overlay roof is just put on top of the existing roof your roofer s crew doesn t have to tear off your existing shingles redeck the roof or do as much cleanup.

Roof overlay install. Class c roof assemblies and coverings can withstand light fires. This shortens the time it takes to install the roof and saves you a bit of money on labor. Drive nails at high points on the underlying roof the bottoms of the shingles. A roof overlay is done by applying new shingles over the existing layer of shingles.

Structures outside of fire hazard zones require at least class c fire retardant roof covering. In this video we provide details on how to install roof shingles over existing shingles. The best case scenario for an overlay is sound decking. Ashpalt shingle roofing installation labor basic basic labor to install asphalt shingle roof with favorable site conditions.

We discuss the nesting method which helps minimize an uneven appear. However this can only be done once. Install roofing paper membrane. In a traditional roof replacement the roofer completely removes the old shingles and tar paper.

And in fact that s the primary reason a homeowner opts for an overlay roof. Install the eave piece first then the rake piece over it. When installing a metal roof over an existing roof insulate the spaces between the wood strips with rigid insulation to prevent condensation before installing the roofing. In general overlaying a new roof takes less time less labor and thus less money.

This process saves on time labor and overall costs. Finally the roofer puts on new tar paper and shingles and redoes the flashing and seals. The roof then inspects and replaces the decking beneath if necessary. And a roof with no sidewalls where flashing is needed to tie in the roofing material to the exterior walls of the home.

The two pieces should meet neatly at the corners. Install drip edge eave trim and valley flashing. Layout fabricate overlap and secure asphalt shingles per manufacturer instructions. Installation of class a or class b roof coverings is mandatory when any roofing work is carried out on 50 percent or more of the total roof area of the property.

You also need to add. At the eave and the rake install u shape drip edge flashing made for reroof jobs. About an overlay roof installation. If you already overlayed a roof over an existing one your only option for another new roof is to remove everything that s there already.

However if you overlay you cannot install an ice and water leak barrier as it has to adhere directly to the wood decking.