Modified bitumen is one of the most common low-slope roofing systems. Not to be confused with similar materials like asphalt roll roofing, EPDM, or TPO, modified bitumen combines hot asphalt with plastic and rubber additives. They are then layered between sheets of polyester or fiberglass.
What is rolled roofing called?
Rolled roofing (or roll roofing)—also known as MSR—comes in rolls of 100 square feet. Rolled roofing is easy to obtain and can be found at all home improvement stores. One MSR roofing roll is usually about 36 feet long by 36 inches wide.
What type of roof is modified bitumen?
Modified Bitumen (MB) roofing is an asphalt-based, close cousin of the Built-up-Roof (BUR) designed for buildings with low-slope or “flat” roof structures.
Is asphalt roll roofing waterproof?
Asphalt products are proven to resist extreme temperatures are manufactured to comply with the Underwriters Laboratories (UL) standards for fire and wind-resistance. Bitumen Polyester membrane rolls also offer good waterproofing. Rolled roofs can also be painted with waterproofing sealants.
Which is better TPO or modified bitumen?
TPO can be reheated which means you can weld seams when needed. They have a smoother surface than the granulated surface of bitumen roofing, which makes them easier to clean. TPO membranes are typically much thicker than other roofing options, which better protects your roof from falling debris and tears.
What is the best rolled roofing?
Ordinary Rubber Rolled Roofing
Rubber roofing material is the most common and widely used among all rolled roofing materials. Rubber made roofing is also the most inexpensive roofing option. Recycled tires, sawdust, and slate dust is the most common material which is used to make rubber rolled roofing.
Can you walk on rolled roofing?
Traditionally for people to be able to walk on the roof, there’s a roofing surface and one or more layer on top, so it can be an approved walking surface, explains Brendan Houle, owner and director of business development. “Because this is single ply, it’s done all in one coat,” Houle says.
What is the life expectancy of a modified bitumen roof?
It is important to notes that modified bitumen roofs have a solid roof lifetime of approximately twenty years. This is an estimate that does not include good roofing maintenance.
Can modified bitumen roofing be repaired?
Luckily, when modified bitumen coating is damaged, repair is possible! There are a few different ways it can be handled, although applying a patch is the most common method.
How is modified bitumen roofing installed?
How is Modified Bitumen Installed? A modified bitumen roof generally consists of two layers: a base sheet and a cap sheet. The base sheet is often self-adhered to the roofing substrate. The cap sheet is either torched down, cold adhered, or self-adhered (Modified bitumen can also be applied in hot asphalt).
Does roll roofing need underlayment?
Q: Should I underlay my roll roofing? It depends on your budget, but installing an underlay is not out of necessity but preference. While roll roof underlay is not costly, they offer some layers of protection. Make sure you nail down the underlay and then roll it, making sure it is both smooth and flat.
How much does a rolled roof cost?
Cost of Roll Roof
| Roll Roof costs | Zip Code | Sq. ft. |
|---|---|---|
| Basic | Better | |
| Roll Roof – Installation Cost | $220.00 – $240.00 | $265.00 – $280.00 |
| Roll Roof – Total | $385.00 – $415.00 | $455.00 – $490.00 |
| Roll Roof – Total Average Cost per square foot | $4.00 | $4.72 |
What is the best material for a flat roof?
For many projects, PVC roofing is our preferred choice as the best flat roof material on the market. PVC roofing is somewhat more expensive than other single-ply commercial roofing materials, however it offers a wide range of benefits for the price.
Can you install TPO over modified bitumen?
It is often possible to apply TPO roofing systems over pre-existing modified bitumen or metal roofing as long as the current roof is in sound condition. The application of a new roof system over existing roofing eliminates tear-off costs and reduces disposal expenses.
What do you use to clean a TPO roof?
EverGuard TPO only requires mild and non-abrasive household detergent for cleaning. Use a long-handled brush with soft bristles. Make sure to rinse off the solution completely with a pressure washer set on low. Cantrell Roofing, LLC, is a professional roofing contractor.