Onduvilla Over Exhisting Roof

Onduvilla onduvilla roofing shingles 3 5 ft x 1 33 ft ribbed red asphalt roof panel.

Onduvilla over exhisting roof.

Position one of the uncut shingles on top of a trimmed shingle. Continue marking lines every five inches up to the roof ridge. Installation is fast and efficient. The uncut shingle should hang a quarter of an inch over the roof edge.

Parallel to corrugation with utility knife. Before you reshingle a roof read our step by step guide for adding new shingles over old ones. Onduline s lightweight roofing systems have been designed and developed with the knowledge and expertise of roofers. The onduvilla roofing system is designed to fully replace an asphalt shingle roof.

Beveled wood pieces called horsefeathers must be laid along the thick edges of the shakes to make a fairly flat surface. Use the chalk line to mark the line at that spot across the roof. Know your town s regulations regarding roofing materials since some don t permit more than two roofing layers. Follow the overlapping guides that are in place on shingles.

Most standard roof structures. One layer is fine in most cases. Across corrugation with circular saw. Since they can be laid over existing asphalt shingles they re a relatively easy product for most roof installers to lay which also eliminates the labor to remove original materials.

Fits many home styles. Overlap ridge trim 7 inches. Most building codes allow two layers of organic or fiberglass asphalt shingles on roofs with a 4 12 pitch or less and three layers on steeper roofs. Asphalt shingles can be laid over cedar shakes or shingles however this is a roofing project best left to pros.

I ve had three hurricanes and countless numbers of bad storms with my yard being flooded with 6 20 inches of water from. Apply over solid decking or up to 1 layer of shingles. If the structure can support the added weight a typical 20 square 2 000 square foot reroof will cost at least 1 000 less than a tear off job. Smart lightweight and efficient roof shingles.

I put ondura on my house roof over two layers of shingles 20 years ago. Onduvilla is compatible with any size house and roof style where asphalt shingles have been installed. Mark the location of the top of the uncut shingle on the felt.