What are Fibreglass Shingles?
Asphalt Shingles: There are two types of asphalt shingles available in today’s market: • Paper [base-mat] Older • Fibreglass [base-mat] Modern Many people get confused on this topic and think that there are asphalt or fibreglass shingles. WRONG! They are both “asphalt”. It is just the centre-core that is different. Most fibreglass [base-mat] shingles have a blend of asphalt-types. This keeps them much more flexible and they can be installed in colder weather, without shattering. They are also, much stronger and therefore, more wind resistant. When used with an approved Underlayment – like tarpaper – they provide a Class “A”, fire-rated roof system. If ventilation and insulation standards are not good, these shingles will try to self-ventilate. They will flip or lift-up slightly, in an effort to let-out moisture. [Sometimes, homeowners panic when they see this happen and think that the shingles are defective. On the other hand, this phenomena is an indication of inferior attic and/or ce
