Roofs and Moisture
Roof Coverings Common in Simi Valley, CA
Simi Valley homes lean heavily on clay tile and asphalt shingle, roofed during the tract boom that built most of the valley in the 1970s and 80s. What holds up near Tapo Canyon or Wood Ranch depends on sun exposure, roof pitch, and how many Santa Ana wind seasons it's already survived.
In one paragraph
Concrete and clay tile top most tract homes near Bridle Path and through Wood Ranch, often lasting 40 to 50 years under the valley heat. Composition shingle, common closer to Tapo Canyon and Rancho Simi Community Park, runs 20 to 25 years. Flat or low-slope sections near Santa Susana Knolls typically get 15 to 20 years before recoating or replacement.
Material is only half the question. A concrete tile roof can outlive the paper underneath it by twenty years, so a roof that looks sound from the street may already be leaking at the seams. Shingle tells the opposite story, showing its age on the surface first as granules wash into the gutters.
Questions & Answers
Frequently Asked Questions
Which roof covering lasts longest here?
Metal and composite outlast composition shingle by a wide margin, and both cost more up front. The honest comparison is not the warranty number on the wrapper but how the covering behaves in this climate: what holds moss, what sheds needles, what a low winter sun and forty inches of rain a year do to it. A thirty-year shingle and a thirty-year climate are two different things.
Can I put a different covering on than the one I have?
Usually, but not always without work underneath. Weight is the first question - concrete tile is several times heavier than shingle and the framing has to carry it. Pitch is the second: below about a 2:12 slope a shingle roof will not shed water and the roof has to be a membrane whatever it looks like from the street. An HOA may have a say in the third.
Does the covering change how often the roof needs looking at?
It changes what you are looking FOR. Composition shows its age as curling, cupping and granule loss. Metal shows it at the fasteners and the seams. Cedar shows it as splitting and cupping shakes with moss in the gaps. Tile rarely fails as tile at all - what fails is the underlayment beneath it, which is invisible until it leaks.
What is actually on most roofs around here?
Architectural composition shingle, by a long way, and it has been the default for new construction and re-roofs for decades. Cedar shake is on a good number of older houses and is usually replaced with composition or composite rather than renewed. Metal is a deliberate upgrade. Flat membrane turns up on a porch, a dormer or an addition rather than on a whole house.
Get Started Today
Roof Types Common Here
Clay tile covers a large share of Simi Valley's tract homes built through the 70s and 80s, while composition shingle shows up on plenty of reroofs since, and flatter sections turn up on additions near Old Town. Each material ages differently under valley heat and Santa Ana winds. Before you assume your roof needs a full replacement in the same material, ask the licensed pros we connect you with what actually makes sense for your house.
Call (805) 463-1431