External silver 20 installed to all glazing to give total daytime privacy and reduce heat and glare at Sarah Bonnell Secondary School in East London

1. External silver 20 installed to all glazing at Sarah Bonnell Secondary School in East London

2. External silver 20 installed to all glazing at Sarah Bonnell Secondary School in East London

3. External silver 20 installed to all glazing at Sarah Bonnell Secondary School in East London

4. External silver 20 installed to all glazing at Sarah Bonnell Secondary School in East London

5. External silver 20 installed to all glazing at Sarah Bonnell Secondary School in East London