Big Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
The roofs here are predominantly tile on newer stock, which means Big Sky tile is not yet on the same underlayment cycle as the 1960s and 1980s tracts. A Big Sky tile leak is more likely to be flashing or a single-slope failure than a whole-roof underlayment failure, and that distinction is checked first.
Big Sky is hillside work: ridgeline wind exposure, drainage down graded streets, and wildland-urban interface detailing at the open-space edge. Parcel fire-zone status is checked in the viewer, not assumed from the community name.
Big Sky Ranch, the historic filming ranch, is not the Big Sky housing community, and the two are not conflated on this page.
For a single-family re-roof in CEC Climate Zone 9, the Title 24 Part 6 prescriptive cool-roof values are an aged solar reflectance of at least 0.20 with thermal emittance of at least 0.75, or an SRI of at least 16, on steep slopes of 2:12 or more, and at least 0.63 with emittance of at least 0.75, or an SRI of at least 75, on low slopes under 2:12. That requirement is triggered when more than 50 percent of the roof area is replaced, which is a different threshold from the City permit trigger, and the parcel's zone should be checked with the CEC zone finder before a product is specified.
Roof InstallationBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Roof ReplacementBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Roof RepairBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Roof InspectionBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Roof MaintenanceBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Shingle RoofingBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Tile RoofingBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Flat RoofingBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Metal RoofingBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Commercial RoofingBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Residential RoofingBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Emergency Roof RepairBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Storm Damage RepairBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Leak Detection and RepairBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Gutter InstallationBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Gutter RepairBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Skylight RepairBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Roof VentilationBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Fascia and Soffit RepairBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Chimney Flashing RepairBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Roof Flashing RepairBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Roof Decking RepairBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
Roof Underlayment InstallationBig Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.Simi Valley contains High and Very High Fire Hazard Severity Zone parcels, but it is not correct to say that all of Simi Valley is Very High. The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A. On such a parcel a Class A fire-rated roof assembly is required.
Published regional market ranges include architectural asphalt at $550 to $900 per square and tile re-lay at $900 to $1,600 per square in a Torrance / South Bay 2026 guide, and California repair work most commonly at $450 to $3,200 in a Modernize guide updated 26 August 2026. One square is 100 square feet of roof surface, not floor area, and a written estimate follows inspection of the actual roof.
Big Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
The roofs here are predominantly tile on newer stock, which means Big Sky tile is not yet on the same underlayment cycle as the 1960s and 1980s tracts. A Big Sky tile leak is more likely to be flashing or a single-slope failure than a whole-roof underlayment failure, and that distinction is checked first.
The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A.
On such a parcel a Class A fire-rated roof assembly is required.
For a single-family re-roof in CEC Climate Zone 9, the Title 24 Part 6 prescriptive cool-roof values are an aged solar reflectance of at least 0.20 with thermal emittance of at least 0.75, or an SRI of at least 16, on steep slopes of 2:12 or more, and at least 0.63 with emittance of at least 0.75, or an SRI of at least 75, on low slopes under 2:12. That requirement is triggered when more than 50 percent of the roof area is replaced, which is a different threshold from the City permit trigger, and the parcel's zone should be checked with the CEC zone finder before a product is specified.
Published regional market ranges include architectural asphalt at $550 to $900 per square and tile re-lay at $900 to $1,600 per square in a Torrance / South Bay 2026 guide, and California repair work most commonly at $450 to $3,200 in a Modernize guide updated 26 August 2026.
One square is 100 square feet of roof surface, not floor area, and a written estimate follows inspection of the actual roof.
Big Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
The roofs here are predominantly tile on newer stock, which means Big Sky tile is not yet on the same underlayment cycle as the 1960s and 1980s tracts.
Big Sky is hillside work: ridgeline wind exposure, drainage down graded streets, and wildland-urban interface detailing at the open-space edge. Parcel fire-zone status is checked in the viewer, not assumed from the community name.
Big Sky is hillside work: ridgeline wind exposure, drainage down graded streets, and wildland-urban interface detailing at the open-space edge.
Parcel fire-zone status is checked in the viewer, not assumed from the community name.
Big Sky Ranch, the historic filming ranch, is not the Big Sky housing community, and the two are not conflated on this page.
For a single-family re-roof in CEC Climate Zone 9, the Title 24 Part 6 prescriptive cool-roof values are an aged solar reflectance of at least 0.20 with thermal emittance of at least 0.75, or an SRI of at least 16, on steep slopes of 2:12 or more, and at least 0.63 with emittance of at least 0.75, or an SRI of at least 75, on low slopes under 2:12.
That requirement is triggered when more than 50 percent of the roof area is replaced, which is a different threshold from the City permit trigger, and the parcel's zone should be checked with the CEC zone finder before a product is specified.
The roofs here are predominantly tile on newer stock, which means Big Sky tile is not yet on the same underlayment cycle as the 1960s and 1980s tracts. A Big Sky tile leak is more likely to be flashing or a single-slope failure than a whole-roof underlayment failure, and that distinction is checked first.
The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A.
On such a parcel a Class A fire-rated roof assembly is required.
Work is planned around Simi Valley heat, winter rain and Santa Ana wind.
Published regional market ranges include architectural asphalt at $550 to $900 per square and tile re-lay at $900 to $1,600 per square in a Torrance / South Bay 2026 guide, and California repair work most commonly at $450 to $3,200 in a Modernize guide updated 26 August 2026.
One square is 100 square feet of roof surface, not floor area, and a written estimate follows inspection of the actual roof.
Big Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
The roofs here are predominantly tile on newer stock, which means Big Sky tile is not yet on the same underlayment cycle as the 1960s and 1980s tracts.
Big Sky is hillside work: ridgeline wind exposure, drainage down graded streets, and wildland-urban interface detailing at the open-space edge. Parcel fire-zone status is checked in the viewer, not assumed from the community name.
These are published Oct-2026 regional market ranges, not Treggo Lume prices. A written estimate follows inspection.
Big Sky Ranch, the historic filming ranch, is not the Big Sky housing community, and the two are not conflated on this page.
For a single-family re-roof in CEC Climate Zone 9, the Title 24 Part 6 prescriptive cool-roof values are an aged solar reflectance of at least 0.20 with thermal emittance of at least 0.75, or an SRI of at least 16, on steep slopes of 2:12 or more, and at least 0.63 with emittance of at least 0.75, or an SRI of at least 75, on low slopes under 2:12. That requirement is triggered when more than 50 percent of the roof area is replaced, which is a different threshold from the City permit trigger, and the parcel's zone should be checked with the CEC zone finder before a product is specified.
Big Sky Ranch, the historic filming ranch, is not the Big Sky housing community, and the two are not conflated on this page.
For a single-family re-roof in CEC Climate Zone 9, the Title 24 Part 6 prescriptive cool-roof values are an aged solar reflectance of at least 0.20 with thermal emittance of at least 0.75, or an SRI of at least 16, on steep slopes of 2:12 or more, and at least 0.63 with emittance of at least 0.75, or an SRI of at least 75, on low slopes under 2:12.
That requirement is triggered when more than 50 percent of the roof area is replaced, which is a different threshold from the City permit trigger, and the parcel's zone should be checked with the CEC zone finder before a product is specified.
Simi Valley contains High and Very High Fire Hazard Severity Zone parcels, but it is not correct to say that all of Simi Valley is Very High.
The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A.
On such a parcel a Class A fire-rated roof assembly is required.
Your roof is checked as a whole system: deck, underlayment, flashing and drainage.
Published regional market ranges include architectural asphalt at $550 to $900 per square and tile re-lay at $900 to $1,600 per square in a Torrance / South Bay 2026 guide, and California repair work most commonly at $450 to $3,200 in a Modernize guide updated 26 August 2026.
One square is 100 square feet of roof surface, not floor area, and a written estimate follows inspection of the actual roof.
Big Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
The roofs here are predominantly tile on newer stock, which means Big Sky tile is not yet on the same underlayment cycle as the 1960s and 1980s tracts.
A Big Sky tile leak is more likely to be flashing or a single-slope failure than a whole-roof underlayment failure, and that distinction is checked first.
Big Sky is hillside work: ridgeline wind exposure, drainage down graded streets, and wildland-urban interface detailing at the open-space edge.
Parcel fire-zone status is checked in the viewer, not assumed from the community name.
Big Sky Ranch, the historic filming ranch, is not the Big Sky housing community, and the two are not conflated on this page.
Customer reviews are not published on this website yet. If you would like to discuss a roof in Simi Valley, call Treggo Lume Home Roofers at (805) 669-9300 or visit 1712 Erringer Rd, Simi Valley, CA 93065. A written scope follows inspection of the actual roof.
For a single-family re-roof in CEC Climate Zone 9, the Title 24 Part 6 prescriptive cool-roof values are an aged solar reflectance of at least 0.20 with thermal emittance of at least 0.75, or an SRI of at least 16, on steep slopes of 2:12 or more, and at least 0.63 with emittance of at least 0.75, or an SRI of at least 75, on low slopes under 2:12.
That requirement is triggered when more than 50 percent of the roof area is replaced, which is a different threshold from the City permit trigger, and the parcel's zone should be checked with the CEC zone finder before a product is specified.
Simi Valley contains High and Very High Fire Hazard Severity Zone parcels, but it is not correct to say that all of Simi Valley is Very High.
The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A.
Big Sky Ranch, the historic filming ranch, is not the Big Sky housing community, and the two are not conflated on this page.
Call (805) 669-9300 to arrange an inspection and a written estimate.
Published regional market ranges include architectural asphalt at $550 to $900 per square and tile re-lay at $900 to $1,600 per square in a Torrance / South Bay 2026 guide, and California repair work most commonly at $450 to $3,200 in a Modernize guide updated 26 August 2026.
One square is 100 square feet of roof surface, not floor area, and a written estimate follows inspection of the actual roof.
Big Sky is a newer hillside community on the north side of Simi Valley, built in the mid-2000s and later, with larger homes on graded hillside streets.
The roofs here are predominantly tile on newer stock, which means Big Sky tile is not yet on the same underlayment cycle as the 1960s and 1980s tracts.
Big Sky is hillside work: ridgeline wind exposure, drainage down graded streets, and wildland-urban interface detailing at the open-space edge. Parcel fire-zone status is checked in the viewer, not assumed from the community name.
A written scope follows inspection of the actual roof, because size, pitch, number of layers, material, access, and permit requirements all change the work. This website does not publish a firm price for this business; published market ranges elsewhere on this site are labelled as market data, not as a quote.
The better choice depends on the house: tract or hillside position, roof pitch, weight the framing can carry, fire-zone status, and ventilation. Compare those factors for the actual roof rather than a single ‘best’ label, and confirm permit and fire-zone requirements for the parcel.
For an active leak, limit interior water damage, avoid walking on a wet or damaged roof, and call (805) 669-9300 to discuss make-safe work such as tarping. Tarping is temporary, not a repair, and no arrival or completion time is promised on this website.
Services on this site cover roof replacement, repair, leak detection, inspection, maintenance, shingle, tile (including lift-and-relay), flat, metal, commercial and residential roofing, plus gutter, flashing, decking, ventilation and skylight repair work. Standalone slate, wood-shake, coating, gutter-cleaning and skylight-installation pages are not offered here.
How long the work takes depends on the scope found on inspection: roof size, material, layers to remove, deck repairs, and weather. No completion time is promised on this website; scheduling is arranged by phone after inspection.
Big Sky Ranch, the historic filming ranch, is not the Big Sky housing community, and the two are not conflated on this page.
Call Treggo Lume Home Roofers at (805) 669-9300 or visit 1712 Erringer Rd, Simi Valley, CA 93065, to discuss your roof.
Simi Valley contains High and Very High Fire Hazard Severity Zone parcels, but it is not correct to say that all of Simi Valley is Very High. The parcel's zone must be checked in the CAL FIRE / VCFD Fire Hazard Severity Zone viewer, and on a wildland-urban interface parcel the current citation is Title 24 Part 7, the California Wildland-Urban Interface Code, not the retired CBC Chapter 7A. On such a parcel a Class A fire-rated roof assembly is required.
(805) 669-9300