And over time pvc seams to shrink more.
Pvc roofing issues.
If you are looking for a cost effective and durable single ply roofing system for your flat or low slope roof a tpo thermoplastic olefin membrane may be a solid energy efficient option.
Pvc on the upper end of the price spectrum there is pvc roofing.
Also exposure to plant roots fungi and bacteria have no negative impact on a pvc roofing membrane.
Pvc is relatively light and can be purchased in milages between 36 and 90 mils as mentioned before a mil is 0 001 of an inch.
The membrane stands up to constant dampness ponding water as well as high and low alkaline conditions.
But a lot of people seem to think that there is not much difference in all the roofs and sometimes include one more of the ones listed in the term vinyl roof or rubber roof.
Older pvc roofs in cold weather are prone to shattering.
Can they be included in the list of the best systems for commercial purposes.
Just leave the heat gun in the lap a little longer and see what happens to the pvc vs the tpo.
Benefits issues faq when was pvc or vinyl roofing systems introduced to the market.
It is a white reinforced membrane with welded seams and flashings.
Pvc also called the polyvinyl chloride roofing system originally came from europe in the early sixties.
It is very easy to repair by welding a patch or re welding seam voids.
However the standard pvc roofing membrane is about 50 mils.
One frequent trouble spot is moisture getting below the roofing membrane.
Pvc membranes are manufactured to remain watertight in extreme conditions.
Pvc is definitely affected more by heat.
Cost a typical residential tpo roof will cost between 6 50 and 11 50 per sq.
Though the primary color of a pvc roofing membrane is white it can come in a variety of colors and hues.
45 mils equal 0 045 inches.
Thus for an average sized 1 200 sq.
Go back on a roof a year or so later and the pvc roof looks like the batter head top part you beat on a drum.
Pvc can last well over 30 years.
When that happens it can cause significant damage to roofing systems including debonding and curling of insulation and cover boards loss of thermal performance and compressive strength and deterioration of and mold growth on moisture sensitive and organic materials.
All roof products deteriorate over time and pvc has a tendency to shrink pulling the seams lifting corners and potentially causing leaks.