No 15 felt and no.
Fiberglass roofing felt.
It s created by saturating paper or fiberglass mat with asphalt.
30 felt is typically thicker stronger and may be less prone to tearing or.
Helps prevent water infiltration under shingles from wind driven rain and other sources.
The popularity for both systems stems from different requirements however.
Once there s a hole in the felt layer you can patch it but the wind will eventually find a way to make the hole bigger.
Roofing felt is comprised of a base made from natural materials such as wood cellulose or synthetic ones such as fiberglass or polyester and then coated or saturated with a protective coating such as bitumen asphalt which repels water but still allows the product to breathe.
Felt roofing underlayment is one of the oldest types of roofing underlayment.
Reinforced with fiberglass to support flat more uniform shingle application.
With the felt roof or other roof covering removed inspect the wood underneath if it s sterling board tongue and groove or plywood and it s 18mm or above and in a good rot free firm condition you can overboard it.
Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes.
Fiberglass reinforced so it lies flatter than typical felts reducing the telegraphing of wrinkles which can detract from the look of your new roof.
Fiberglas reinforced felt underlayment adds an extra layer of protection beneath the shingles helping prevent moisture from reaching the roof deck.
When and how to overboard a flat roof.
Felt is a cheaper material fibreglass is more expensive.
Fiberglass shingles are a common shingle type across the country but that doesn t mean homeowners know much about them.
That s why we ve created a brief faq section to explore the pros and cons of fiberglass roofs and whether they re right for your house.
Reinforced with fiberglass to support flatter more uniform shingle applications.
Felt and grp fibreglass roofing systems are the most popular systems for flat roofs.
Keep patching repairing and hoping for the best or replace the felt with a.
Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer.
You ll be faced with a choice.
Eliminates the need to slit bubbled felt which may be required when using conventional organic felt doing so can compromise.
Unlike standard felt resists curling or pulling away from fasteners when exposed to moisture or wind.
Can be applied over plywood wood plank and all other approved decks.
Felt roof materials are also susceptible to weather damage from wind and rain since felt is quite delicate.
To see information on over boarding of a felt roof see our fibreglass faq page.