Mastic Asphalt Roofing System is a combination of limestone powder mixed with limestone aggregate. It makes the perfect material to deliver a roof surface required to be seamless, durable and smooth. It provides excellent waterproof reliability and can be considered by some as one of the most conventional materials for construction there is globally. It continues to be developed and still commonly used as it moves forward with modern technologies containing advanced polymer foundations to enhance is performance. The only drawback it has is it does require some form of thermal protection and can turn brittle when it sets.
The Positives of a Mastic Asphalt roof:
The Negatives of a Mastic Asphalt roof:
Mastic Asphalt roofing system is not uncommon and has been in use for many years delivering very good results. This too has developed over the years resulting in modern day asphalt containing polymer formulations improving it still further. Not only for roofing purposes it can also be suitable for use for a variety of different tasks such as:
It is versatile and can be laid and guided around posts, curves, structures, roof lights, and up stands as it can be applied and laid on any solid rigid surface such as timber, metal or concrete. The material is heated up in a asphalt boiler. It is then applied, trowelled around details as required and laid on the roof while it is still very hot. Once it cools the result is a hard durable roof. The life span can easily reach 40-years plus.
Some facts regarding Mastic Asphalt Roofing System
It can cost up to 30% more expensive than a traditional torch on felt system.
It can be used on a variety of roof sizes apart from a thin fragile roof or a heavily sloped roof. It is durable and strong once cured and does not need a hot exposed flame for installation.
It can handle an abundance of abuse and footfall. It is very strong and once cured sets hard very much like asphalt pavement.
It is easy and relatively cost effective to repair. Repair methods can be from a liquid repair to a torch on felt repair. It is possible to lay another roof over the existing roof such as a complete new 3-layer torch on felt system over the existing asphalt. This could be a 50-year old roof getting a make over to lengthen its life another possible 30-years.
Again its not unpleasant to look at. It has a matt light grey finish producing very clean lines if laid correctly.
The roof construction that the asphalt is to be applied to must be of strong design as the asphalt can be heavy so the roof needs to be able to support the additional weight and not move.
The existing roof construction cannot have any rising moisture build up underneath the roof such as rising damp issues. This will lead to bubbles slowly rising in the surface commonly known in the trade as ‘goose eggs’.
Please feel free to contact us for further advice
If you are interested in booking a survey for any of our services or just a roof safety check, please contact Plymouth Roofing Solutions on 01752 201077 and a member of our team will be happy to help or advise you.
We will make an appointment and one of our surveyors will come to see you, survey the project, have a chat, and give you some free advice. Our team is dedicated in listening to what you have to say and accommodating your every need. We will advise you on what we think would be best and never recommend doing any more than is required or necessary. We also we attempt a solution that stays within a budget that you may have.
Our professional team of qualified tradesmen carries out their work to the highest standard causing you as minimal disruption as possible to your day-to-day life and always leaves the job clean and tidy on a daily basis. We have public liability insurance of £10 million pounds that can be viewed on request. We have skilled tradesmen in all forms of carpentry, roofing, lead work, and lead welding.
