Bituthene Roof Construction Over Plywood Decking

The new plywood will have to be nailed to the rafters or roof trusses.

Bituthene roof construction over plywood decking.

The bituthene waterproofing system is the most trusted post applied waterproofing membrane. Fiber roof underlayment as a final substrate. For each of these applications and more there s a bituthene product developed by gcp applied technologies. The 1 ply material is not durable and if used can.

Bitumen roofing is also available in 1 2 or 3 ply. After receiving a few estimates some or all of the roofing contractors propose to tear off your existing roofing material and re sheet with plywood. Cedar shakes have always been a popular roofing material especially in the pacific northwest. Bv021594 08 07pm 02 09 20.

Install waterproof felt over the plywood to add protection against moisture. The plywood should be clean and free of raised nail heads to provide a uniform deck structure for the metal. This absorption of heat can lead to superheating of the building below. Plywood is a bit more expensive but is usually stronger and is often selected in cases where the roof covering is heavier such as for slate clay or concrete tile roofs.

But in recent decades the asphalt composite shingle has taken off as the main roofing style. But with the old plywood left in place it will be considerably more difficult to locate the rafters to ensure proper nail. Modified bitumen roofs have a lot of advantages over other types of membrane roofing and are often seen as the modern alternative to the built up roof. Bituthene deck prep surface treatment surface leveler for application to uneven or rough concrete surfaces.

Given the large numbers of homes with cedar shake roofs installed in the 1980 s and 90 s many are coming to end of life now. Tunnels metro stations and infrastructure products. Cdx plywood glued and screwed to the framing. If you re wondering why the roofers can t just install new shingles and roofing accessories over your existing roof deck this article will guide you through one of the most common reasons.

To create a smooth surface and to protect the bottom of the rubber roofing from any fasteners or rough edges on the plywood i installed 1 2 in. Plazas decks inverted roofs green roofs and elevated decks. The roof sheathing is 3 4 in. Follow these 5 simple construction steps for roof sheathing and scroll down to see more details on each with installation hints and tips below.

If doing an all new roof decking definitely go with at least 5 8 thickness if you are spanning more than 16 inches between roof framing elements.