Snow Load Assessment

What This Service Involves

Snow load assessment measures the actual weight of snow on a roof, which is critical in Western Washington because our wet snow weighs far more than the dry snow building codes often assume. A modest-looking depth of saturated Cascade snow, especially after rain, can approach or exceed a roof's design capacity without any obvious warning. Our crews measure depth and density to calculate the real load and advise whether removal is needed to protect the structure. This assessment gives property owners the data to act before a load becomes a structural emergency.

Benefits

Real weight data instead of guessing from snow depth; Recognition of how heavy saturated Northwest snow truly is; Clear guidance on whether removal is needed; Early warning before a load threatens the structure

Our Process

1) Measure snow depth across representative roof areas; 2) Sample density to determine the snow's water content; 3) Calculate the actual load against the roof capacity; 4) Recommend removal or monitoring based on the findings

What Affects the Cost

Roof size and number of measurement points; Variation in depth and density across the roof; Access and height for safe measurement; Structural details needed for the load calculation; Reporting and follow-up recommendations required

Best Time of Year

Snow load assessment is most valuable during and right after heavy accumulation events from December through February.