Commercial Roofing in San Rafael, CA

Service Areas

An opening at an equipment curb can put a San Rafael commercial roof repair between two trades. The membrane may have separated from the curb, the unit connection may be admitting water, or both may need attention. A patch placed across that junction without locating the failure can leave the owner paying for another investigation. We inspect the raised connection and the surrounding roof, then identify the work and access needed to restore the right component.

Our service from Richmond, CA reaches San Rafael. San Rafael is the Marin County seat, reached from Richmond over the Richmond-San Rafael Bridge on I-580 and by US 101. On each building, the equipment layout and the connection that actually failed set the scope. We check the curb at its base and along its top edge. When water could be coming from either the HVAC unit or the roof, both are checked and the work is scheduled so neither gets missed. We also arrange commercial roof repairs in Larkspur, checking the available roof route and the position of each affected detail before setting the order of work.

The curb has separate connections

The roof membrane meets the curb at its lower transition and continues up its raised face. Equipment can meet the top of the curb through a separate joint. Water found below does not identify which connection admitted it. We inspect the membrane attachment, the corners and the upper closure, and check the unit's own connection separately. That tells the owner how big the roof repair is and whether the HVAC contractor needs to do anything before we can finish.

A damaged curb surface may prevent a sound roofing attachment even where the membrane itself remains usable. We check the curb's wood or metal and the flashing around it. Our work at rooftop curbs and equipment supports separates weatherproofing from structural bearing. A flashing repair does not establish that a support can carry a changed load. If an engineer needs to look at it, we say so before new roofing covers it up.

The roof around the curb shows how far it goes

A small opening at the curb can come with a wider area of damaged roof. We examine the surrounding field for splits, disturbed seams and signs that the failure extends beneath the visible surface. A moisture scan can help, but wet readings need to be confirmed with cores. The scope describes the known condition and the reason for any additional opening instead of treating the first visible gap as the full boundary.

New layers need a solid deck under them. Where material is removed, we examine the deck and identify any condition that would prevent permanent closure. New insulation and cover board must suit the existing assembly and the selected repair. Owners arranging a localized commercial roof repair get the curb detail spelled out along with the repair size. That matters because the seam where new work joins the old roof is part of the repair, not just its outline.

The unit affects the route

Equipment can block the shortest approach to a damaged junction. We work out where the crew and materials can pass without using the unit as a support or resting removed material against its connections. The building's available roof entrance, clear working space and occupied areas below are checked together. If the unit has to be shut down or moved, the HVAC contractor handles it, and we plan the roof opening and its protection.

The property representative confirms the entrance and roof-access arrangements before materials are brought to the damaged junction. Where a curb sits beside a service walkway, we also establish whether protection, clearance or equipment isolation changes the repair sequence before the unit junction is opened. We agree the delivery position and the means of carrying materials to the curb before work is authorized. Planning for properties in Corte Madera likewise includes the available passage and the effect of the work on building use. An owner can then identify a tenant restriction early enough for it to be included in the proposed work order.

The corner repair needs continuity

Curb corners bring changes of direction into a small area. A new piece of roofing has to follow those turns without leaving a gap or a weak seam to the old membrane. We look at how the corner was built and choose the right corner patches and seaming method. Adding layers without proper prep can hide the original problem and create a new weak spot. We rebuild the corner from solid membrane, not over questionable material.

For EPDM membrane connections, the corner patches, primer and seam tape have to match the existing rubber membrane and the detail. Thermoplastic and asphalt-based assemblies need their own procedures. We establish which system is present before choosing the repair material. Where a narrow patch cannot form a reliable connection, a larger area may need replacement. That choice follows the condition of the retained membrane and the geometry of the curb, including the room available for the permanent junction.

The finished scope closes each task

The roof repair can be finished while HVAC work is still pending. Our report makes that clear. We photograph the exposed junction, record any replaced layers and identify the final roofing transition. A task assigned to an equipment contractor is listed separately, including its place in the sequence. The owner can see what was finished and what still needs doing to stop the leak for good.

A repeated pattern of curb failures may justify a review of several details instead of another isolated repair. We examine the observed condition before recommending that broader scope. A roof survey before a building commitment can also distinguish a manageable detail repair from wider assembly concerns. Immediate protection remains a separate decision where water entry needs urgent attention. Emergency roof response runs around the clock, holidays included. We price temporary protection and the permanent repair separately.

Commercial Roofing Questions

How do you separate a roof failure from an equipment leak?

We inspect the membrane junction, the curb and the upper equipment connection as separate components. The HVAC contractor may need to check the unit. Our findings show where the opening is and who should fix it, so a roof patch isn't used to cover up an equipment leak.

Does a curb repair require the unit to be lifted?

The available access and the failed connection determine that requirement. Some roofing details can be reached without equipment movement. Others need coordinated access or related equipment work. We establish that sequence before the roof is opened and identify who performs each task.

Can roofing work confirm the support is suitable for a heavier unit?

Weatherproofing examination does not establish structural load capacity. A new, heavier unit or a damaged support may need an engineer's review. We identify the roofing interfaces and any necessary preceding work, keeping the bearing decision distinct from the membrane and flashing repair.

What makes the patch perimeter part of the scope?

New material has to bond to solid, compatible membrane. That area is often larger than the visible hole. We mark where good membrane starts and what prep it needs, so the repair doesn't end on weak roofing.

Why record equipment work in a roof repair report?

The two tasks can affect the same junction and need a defined order. Recording the relationship helps you distinguish completed roofing from another outstanding responsibility. It also explains why one connection was left for later rather than assumed to be done.