How Fabric Buildings Handle Extreme Heat and UV Exposure

Summer Performance Matters Too

While much attention goes to how buildings handle winter conditions, Canadian summers bring their own challenges. Prairie temperatures regularly exceed 30°C, and UV radiation at Alberta’s latitude is intense during long summer days. Understanding how your fabric building performs in heat and sun ensures year-round protection for your stored items.

UV Resistance of PVC Covers

Ultraviolet radiation is the primary cause of cover degradation in fabric buildings. Cheap polyethylene covers can become brittle and crack within 2-3 summers of full sun exposure. Quality PVC covers, like the 750 g/m² material used by MAX Storage Buildings, include UV stabilizer additives that absorb and dissipate ultraviolet energy before it can break down the material. This UV protection is engineered to last the full service life of the cover, not just the first few seasons.

Thermal Management

The interior of any covered structure can become very hot in direct summer sun. Fabric buildings manage this better than metal structures for several reasons: PVC doesn’t conduct heat the way metal does, so surface temperatures stay lower. The natural ventilation through open ends creates airflow that prevents heat buildup. And the light color of most PVC covers reflects a significant portion of solar energy rather than absorbing it. While fabric buildings will be warmer than ambient temperature on hot days, they’re typically 10-15°C cooler than comparable metal buildings.

Protecting Heat-Sensitive Items

If you’re storing items that are sensitive to heat — such as chemicals, electronics, paint, or certain agricultural products — consider these strategies: orient your building so the open ends face the prevailing breeze direction, install reflective ground cover beneath the building to reduce radiant heat from the ground, use end wall vents or partial end walls with upper ventilation openings, and consider adding a light-colored gravel apron around the building to reduce reflected heat from surrounding surfaces.

Cover Color and Solar Reflectance

MAX Storage Buildings’ PVC covers are available in colors optimized for Canadian conditions. Lighter colors reflect more solar energy and keep interiors cooler, while darker colors provide better UV protection for stored items that are sensitive to light. Our standard white/grey covers offer an excellent balance of solar reflectance and light diffusion.

Built for All Seasons

A MAX Storage Building performs through every Canadian season — from -40°C winter storms to +35°C summer heat waves. Our combination of premium PVC covers, galvanized steel frames, and intelligent peaked design ensures your building and everything inside it is protected year-round. Browse our buildings starting at $5,888 with free delivery within 888 km of Edmonton.

Frequently Asked Questions

What type of fabric cover is best for storage buildings?

PVC (polyvinyl chloride) covers in the 680–750g/m² range offer the best combination of durability, weather resistance, and UV protection for Canadian conditions. MAX Storage Buildings use 750g PVC — heavier than many competitors. Avoid lighter polyethylene (PE) covers often sold on budget buildings — they degrade faster under UV exposure and typically last only 3–5 years versus 10–15 for quality PVC.

How does UV radiation affect fabric building covers?

UV radiation gradually breaks down the molecular structure of fabric covers, causing them to become brittle, fade, and eventually tear. Quality PVC covers include UV stabilizers that dramatically slow this process. The rate of UV degradation depends on geographic location (higher altitude and latitude = more UV), cover quality, and colour. White or light-coloured covers reflect more UV and last longer.

What weight of PVC cover should I look for?

Look for PVC covers weighing at least 680g/m² for Canadian conditions. MAX uses 750g/m² PVC, which provides excellent tear resistance, weather protection, and longevity. Avoid covers under 600g/m² — while cheaper, they tear more easily, stretch under snow loads, and degrade faster under UV exposure. The cover weight is one of the most reliable indicators of overall building quality.