What is a modified bitumen roofing system?
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. With five layers of protection, it’s one of the most trusted flat roofing systems used in the industry today.
How long will a modified bitumen roof last?
20 years
Modified bitumen roofing is a long-lasting material with an average life span of 20 years. But since it’s a low-maintenance roofing system, it can last even longer with just basic care and maintenance.
Can you walk on modified bitumen?
Can you walk on a modified bitumen roofing system? Yes. Well-installed MB roofing is designed to withstand foot traffic. For areas that support building equipment or heavier foot traffic, the roof can be appropriately reinforced.
Who makes modified bitumen?
With over three decades of experience producing modified bitumen, we understand the science of formulating systems that last. Our SBS is a premium modified bitumen engineered specifically for elasticity. It is made to withstand even the harshest environments.
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.
What lasts longer EPDM or bitumen?
Life expectancy – in the majority of cases, the life expectancy of a roof will boil down to the skill of the contractor chosen to install it. EPDM has a life expectancy of 50 years, comparing incredibly well to its bitumen felt competitors.
Which is better TPO or modified bitumen?
In general, a TPO roof is an excellent investment, considering the numerous advantages over a modified bitumen roof. The tough, tear-resistant single-ply membrane resists chemical spills, oil and grease. TPO roof systems are also UV-resistant to resist cracking and other sun damage, and fully recyclable.
How much does it cost to install a modified bitumen roof?
Cost of Modified Bitumen Roof
| Modified Bitumen Roof costs | Zip Code | |
|---|---|---|
| Basic | Best | |
| Modified Bitumen Roof – Installation Cost | $220.00 – $240.00 | $300.00 – $340.00 |
| Modified Bitumen Roof – Total | $385.00 – $415.00 | $520.00 – $590.00 |
| Modified Bitumen Roof – Total Average Cost per square foot | $4.00 | $5.55 |
Is TPO better than modified bitumen?
How do you maintain a modified bitumen roof?
If moisture is present, open the membrane and inspect the insulation and deck for damage. Remove the wet or damaged insulation and repair or replace the deck as required. Properly attach new, dry insulation consistent with the thickness of the existing insulation and compatible with the other roof system components.
How long will a torch down roof last?
15 to 20 years
Lifespan. The lifespan of a torch down roof is one of its main selling points, at 15 to 20 years. Torch down roofing is more long-lasting than some other types of flat roof systems. This is due to its flexibility in hot and cold temperatures, as well as its resistance to water damage.
What makes a modified bitumen roof a modified roof?
What is Modified Bitumen? Modified Bitumen is a 2-part low slope roof system that is made when polymers are added to asphalt to change its properties. The 2-part system consists of a base layer and a cap layer. The base layer provides waterproofing and a surface for the cap to bond to.
What are the pros and cons of modified bitumen?
Modified Bitumen can be applied using a cold adhesive or a self-adhesive. This has many advantages because it reduces fire risks of the torch heated method and it doesn’t release any toxic fumes into the air while being installed.
What makes up the cap of a bitumen roof?
The cap layer is placed above the base and is composed of a similar bitumen covered membrane but instead, the top surface is covered in granules much like an asphalt shingle. Self-adhesive: This means that each layer has a sticky backside that is covered in plastic.
What is the fire rating for modified bitumen?
It can withstand temperatures as low as -22 degrees Fahrenheit or -30 degrees Celsius without cracking or breaking. In these temperatures, the material can still remain flexible. Modified Bitumen can be rated up to a Class A fire rating which is the highest fire rating. However, there is a disadvantage associated with the fire rating.