if i install 2 sheet on engine hood, would that better ?

hi Yohanes, remember me black inspira? haha, my car feel solid /quiter now after install Sound /heat insulation sheet on 4 door, engine hood, rear trunk.
Also the deadaning is good, install on my car floor, less vibrate since i had change my exhaust system,

the only thing i worried is the engine hood, now not hot after i install heat insulation, when i try open the hood, a bit extra hot on the engine bay, maybe need proper installation. by the way , this product is gud in term of price & quality for those who got confidnt to DIY!