Roofing notes
Short pieces, added to over time. Nothing here is a sales pitch.
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- One email when someone can help. When a provider covering your area can take it on, we email you once and ask whether you want that company, by name, to contact you.
- Deleted after 90 days. If nobody can take it on, or you do not say yes, your contact details are deleted 90 days after your request.
- You decide, or you do not. There is nothing to cancel and nothing to pay us.
Nobody will call you about this request unless you say yes to a company by name.
Latest
- Did the January 1 2023 wind in Irvine damage roofsOn 1 January 2023 the modelled daily maximum gust at Irvine was about 52 mph, a high but not severe band that does not tear off sound roofing but reliably finds anything already loose, lifted, or under-fastened.
- Did the 20 August 2023 wind in Irvine damage roofsOn 20 August 2023 the daily maximum gust modelled at Irvine was about 46 mph, which falls in the strong band below the 58 mph severe threshold, but it is well into the range that finds anything already loose on a roof.
- Did the 29 October 2023 wind in Irvine damage roofsThe daily maximum gust modelled at Irvine on 29 October 2023 was about 53 mph, which sits below the 58 mph severe threshold but is strong enough to pull up anything on a roof that was already loose, like a lifted shingle tab or a cracked tile.
- What does a cool roof requirement mean in Irvine?Irvine sits in IECC climate zone 3, a hot-dry zone on the Department of Energy county map, which means the energy code here skips the ice-barrier requirement but still sets attic ventilation at 1 square foot of net free vent area per 150 square feet of attic floor, or 1 per 300 if intake and exhaust are balanced.
- What did the 14 March 2024 wind do to roofs in Irvine?On 14 March 2024, the daily maximum gust modelled at Irvine reached about 54 mph, a high band that stays under the 58 mph severe threshold but is strong enough to find anything on a roof that was already loose, lifted, or poorly fastened.
- What climate zone 3 means for a roof here in IrvineIrvine is classified as IECC climate zone 3, which affects roofing standards. In this zone, no ice-barrier is required at the eaves, and attic ventilation must meet specific requirements outlined by the California Building Standards Commission.
- Did hail hit Irvine on March 18, 2024, and could it damage my roof?Yes, hail-bearing cells were detected near Irvine on March 18, 2024, with the largest stone measuring about 0.5 inches. While this size is unlikely to cause damage to a sound asphalt roof, it may affect roofs with pre-existing issues.
- What a roof quote should containThe line items that separate a real quote from a number on headed paper.
- Roof warranties, and what they actually coverTwo documents, two different promises, and the gap between them.
- What actually happens during a re-roofDay by day, so nothing on your driveway comes as a surprise.
- Attic ventilation, and why roofers keep raising itThe cheapest thing you can do during a re-roof, and the one most likely to be skipped.
What is it going to cost?
No cost. We email you once when a provider near you can take it on.