Overlay Roof Sheathing

Correct installation of roof sheathing will ensure the best performance and help reduce complaints and callbacks.

Overlay roof sheathing.

For information on large panelized roof systems refer to the commercial construction application section. If you want to avoid the headache of tearing up your new roof looking for a mysterious leak that should not be happening it is in your best interest to apply solid sheathing over the existing shiplap for your roofing system to securely fasten to. Installation is easier than for a tear off job because you can use the existing shingles as guides for laying the new ones. However this can only be done once.

Roof overs are usually more affordable compared to the cost of installing a completely new roof. Of course the total cost can vary based on many factors such as your location the roofing material and whether or not additional insulation is installed. If conditions are right new shingles laid over old shingles can be just as attractive and durable as shingles laid on bare sheathing. Plywood is layers of wood plywood is made.

This has advantages and disadvantages and each of those should be weighed carefully. In general overlaying a new roof takes less time less labor and thus less money. Plywood used for roof decking is typically called sheathing and carries a grade stamp indicating its load and span ratings and other performance factors. But you must take care to install shingles correctly so they lie flat.

For a single wide costs usually range from 1 000 to 3 500. Common roof sheathing applications and installation recommendations are described in the related publications listed at right. In this video i take show how to proper recover an old roof and make it look like it s a single layer check it out you might find useful tips for your new. If you don t take your roof down to the sheathing you will never know if you have proper underlayment or are experiencing sheathing rot or ice or water damage.

When you overlay a new roof you attach the new shingles or other roofing material to the existing roofing material.